1-Technical Manual NEXUS AM v1.1

TECHNICAL MANUAL

NEXUS AM for models Nuda, Luna & Optima

Conditions Transactions, deliveries et cetera will be according to the general terms of delivery as deposited at the Chamber of Commerce at Meppel, The Netherlands. Registration number is K.v.K. 04058425

Version 1.1 (August, 2009)

Table of contents II

Table of contents

1 Terms and abbreviations .................................................................. 1 2 Introduction ....................................................................................... 3

2.1 Description .............................................................................. 3 2.1.1 Field Bus Network structure......................................... 4 2.1.2 Visitor counting ............................................................ 4 2.1.3 Restrictions and limitations .......................................... 5

2.1.3.1 NEXUS AM versus NEXUS RF .................... 5 2.1.3.2 NEXUS Mono restrictions ............................. 5 2.1.3.3 Model restrictions.......................................... 6 2.1.3.4 Software restrictions ..................................... 6

3 General AM and EAS issues ............................................................ 7 3.1 Noise sources.......................................................................... 7 3.2 Installation guidelines .............................................................. 7

4 Equipment and tools ......................................................................... 9 4.1 General installation tools ......................................................... 9 4.2 Laptop computer ..................................................................... 9 4.3 Converter............................................................................... 10

5 AM operating principle .................................................................... 11 5.1 Synchronization principle ...................................................... 12

6 Connections.................................................................................... 14 6.1 A and B side of the antenna ............................................. 14 6.2 How to access the electronic boards..................................... 15 6.3 Field Bus connections ........................................................... 16

6.3.1 Bus connections with laptop ...................................... 16 6.3.2 Bus connections with Field Controller........................ 17

6.4 Field Bus termination............................................................. 18 6.4.1 TRX bus termination .................................................. 18 6.4.2 RX bus termination .................................................... 18 6.4.3 Power supply ............................................................. 19

6.4.3.1 Specifications.............................................. 19 6.4.3.2 Power supply PCB & components .............. 20 6.4.3.3 Power supply restrictions ............................ 21 6.4.3.4 Power supply for a single system (mono) ... 22 6.4.3.5 Power supply for a dual system .................. 22

Terms and abbreviations III

6.4.3.6 Power supply for a triple system ................. 23 6.4.3.7 Power supply for large system setup .......... 23

6.5 Antenna wiring....................................................................... 24 6.6 The NEXUS AM Transceiver (TRX) ...................................... 25

6.6.1 NEXUS AM Transceiver Printed Circuit Board .......... 26 6.6.1.1 TRX PCB Components ............................... 27

6.6.2 Transceiver - receiver cable connections .................. 29 6.6.3 I/O connections.......................................................... 29

6.7 The NEXUS AM Receiver (RX)............................................. 31 6.7.1 NEXUS AM Receiver Printed Circuit Board............... 31

6.7.1.1 RX PCB Components ................................. 31 6.8 The visitor counter................................................................. 33 6.9 Various connections .............................................................. 34

6.9.1 Single antenna system (no aisle)............................... 34 6.9.1.1 Multiple transceivers ................................... 34

6.9.2 Dual antenna system (single aisle)............................ 35 6.9.2.1 Backfield control.......................................... 35

6.9.3 Triple antenna system (double aisle)......................... 36 6.9.4 Quad antenna system (triple aisle) ............................ 37 6.9.5 Large systems ........................................................... 37

7 Configuration .................................................................................. 38 7.1 General connections ............................................................. 38 7.2 TRX configuration settings .................................................... 38

7.2.1 TRX configuration - Field Bus Analyzer..................... 38 8 Cross Point Field Bus Analyzer ...................................................... 39

8.1 Installing the Field Bus Analyzer ........................................... 39 8.2 Starting the Field Bus Analyzer ............................................. 41 8.3 First time start-up .................................................................. 42 8.4 User Interface Mode.............................................................. 45 8.5 All devices Device type tab ................................................ 46 8.6 Logon to a device .................................................................. 47

8.6.1 How to change the default access code .................... 48 8.6.2 When the access code is unknown ........................... 49

8.7 Installing device profiles ........................................................ 50 8.8 NEXUS AM Transceiver........................................................ 51

8.8.1 TRX Device Statistics ................................................ 52 8.8.2 TRX Device Information............................................. 53 8.8.3 TRX Properties .......................................................... 53

8.8.3.1 General settings.......................................... 54 8.8.3.2 General properties ...................................... 54

Table of contents IV

8.8.3.3 Synchronization .......................................... 55 8.8.3.4 Detection..................................................... 55 8.8.3.5 Visitor counter ............................................. 56 8.8.3.6 Arrangement properties .............................. 56 8.8.3.7 Tuning properties ........................................ 57

8.8.4 TRX Events................................................................ 58 8.8.5 TRX Counting ............................................................ 59 8.8.6 TRX Notifications ....................................................... 61

8.8.6.1 General notifications ................................... 62 8.8.6.2 Visitor counting notifications ....................... 62 8.8.6.3 Alarm notifications....................................... 63

8.8.7 TRX AM Systems ...................................................... 64 8.8.7.1 Overview ..................................................... 64 8.8.7.2 Visitor counter ............................................. 65 8.8.7.3 Synchronization .......................................... 67 8.8.7.4 Detection..................................................... 70 8.8.7.5 Threshold level adjustment ......................... 74 8.8.7.6 Tuning ......................................................... 75

8.9 NEXUS AM Receiver ............................................................ 77 8.9.1 RX Device Information............................................... 79 8.9.2 RX Properties ............................................................ 79

8.9.2.1 General settings.......................................... 80 8.9.2.2 Arrangement properties .............................. 80

8.9.3 RX Notifications ......................................................... 81 8.9.3.1 General notifications ................................... 82

8.9.4 RX AM Systems......................................................... 83 8.9.4.1 Overview ..................................................... 83 8.9.4.2 Visitor counter ............................................. 84

8.10 Entrances tab ........................................................................ 85 8.10.1 All entrances .............................................................. 85

8.10.1.1 Antenna arrangement ................................. 85 8.10.1.2 Checking left/right positioning ..................... 86 8.10.1.3 Checking in/out positioning ......................... 88 8.10.1.4 Clearing the counter values ........................ 88 8.10.1.5 Renaming an entrance................................ 89 8.10.1.6 Renaming a device ..................................... 89 8.10.1.7 Device terminated indication....................... 90

8.10.2 Counting .................................................................... 91 8.10.3 Notifications ............................................................... 92

8.11 Uploading new firmware........................................................ 93

Terms and abbreviations 1

1 Terms and abbreviations

This chapter describes the terms and abbreviations used in this document.

Term Abbr. Explanation

(Hard) Tag Tag Passive component, equipped with a lock to allow attachment to garments, which can be detected by the receiver.

(Paper) Label Label Passive component, usually equipped with glue on one side to allow attaching the label to any object, which can be detected by the receiver.

Antenna ANT The mechanical structure (which usually consists of a frame, wires and electronic PCB) to allow proper detection of tags and labels. Also referred to as: pedestal, barrier.

Burst Frequency Fb The operating frequency of the TRX.

Field Bus Analyzer Field Bus Analyzer

Cross Point Field Bus Analyzer Software tool for adjustment of Cross Point devices that are connected to the Cross Point Field Bus structure (RS-485).

EAS EAS Electronic Article Surveillance

Foiled Twisted Pair FTP The FTP cable is surrounded by an outer foil shield.

I/O I/O Digital Input/Output

Printed Circuit Board PCB The electronic board.

Radio Frequency RF Electronic signals generated by a transmitter and detected by a receiver.

Receiver RX Electronic device capable of receiving AM signals.

Transceiver TRX Electronic device capable of transmitting and receiving AM signals, sharing the same electronic circuitry and housing. Also referred to as mono-antenna.

Unshielded Twisted Pair

UTP Common network cable.

2 Terms and abbreviations

Introduction 3

2 Introduction

2.1 Description The NEXUS AM system is a combined state-of-the-art anti-shoplifting system, advertising system and visitor counting system.

Depending on the model (Nuda, Luna or Optima), the NEXUS AM system has the following features:

Antenna Modern design Integrated visitor counter (optional) Easy to change advertising panel(s) (optional) Different alarm indicators for incoming and outgoing alarms Different antenna configurations possible Can be used as either stand-alone system or connected to the

Cross Point Field Bus

Electronics State-of-the-art DSP technology enabling maximum performance

and reliability

Multiple external interface options 2 I/Os and 1 relay enable connections to other electronic devices Plug & play RS-485 bus structure

Maintenance Software Used by installers and end-users for easy and comfortable

installation

Overview of the complete system All features and settings in one user interface Runs on any desktop computer or laptop (Windows XP and

Windows Vista)

Web Based Retail Solution Web based solution which can be accessed worldwide through

the Internet or through a local area network (LAN)

For end-users and installers Modules for visitor counting (online), alarming and reports Several data export possibilities

4 Introduction

2.1.1 Field Bus Network structure Both transceiver and receiver are interconnected through CAT5 wiring and can be connected to a host (e.g. a Field Controller or a computer) and communicate with this host using the Cross Point Field Bus Protocol.

This allows retrieval of device information and various settings to be made through use of the software.

If no controller is used, various parameters can be set on each board separately.

All this functionality is described further on in this manual.

2.1.2 Visitor counting Visitor counting for an aisle is possible because bi-directional IR-based visitor counter modules, installed in the top of the antennas (optional), can be connected to the NEXUS AM boards.

A NEXUS AM transceiver antenna is equipped with a visitor counter receiver module and a receiver antenna with a visitor counter transmitter module. In a three antenna system two aisles can be defined because the visitor counter receiver and transmitter work in both directions.

The capabilities of an EAS system with visitor counter modules are much richer than a system without counter modules. Partly this extra functionality can be used by using the NEXUS AM boards, but most extra functionality can be added by connecting it to a controller or computer.

Some of the extra functionality is listed below.

Automatic antenna arrangement Possibility to count customers per aisle and to determine the direction

of movement (in or out of the shop)

Showing the importance of the alarm (is a customer moving in or out during the alarm)

Detecting undefined alarms Pinpoint the exact aisle where the alarm occurred Generate reports on visitor counts and alarm counts Doorbell function for incoming and/or outgoing customers

Introduction 5

2.1.3 Restrictions and limitations The following restrictions and limitations must be considered:

2.1.3.1 NEXUS AM versus NEXUS RF It is not allowed to connect NEXUS AM systems together with NEXUS RF systems to the same Field Bus!

Pins 3 and 6 on BUS A and BUS B of the NEXUS AM transceiver and receiver boards are not interconnected. They are used for communication between the NEXUS AM transceiver and the NEXUS AM receiver. On NEXUS RF systems, pins 3 and 6 are used for synchronization purposes between the NEXUS RF transmitter and the NEXUS RF receiver, which is based on a completely different signal.

Connecting NEXUS AM and NEXUS RF systems to the same Field Bus will result in bad performance and synchronization and must be avoided!

2.1.3.2 NEXUS Mono restrictions Since the NEXUS AM transceiver is equipped with a visitor counter receiver only, it will not be possible to use the visitor counting feature when two or more transceivers are installed next to each other.

Figure 1: Example Transceivers only, no visitor counting possible

As a result of this, the following features will not be available:

Detection of incoming and outgoing visitors Detection of incoming and outgoing alarms Automatic antenna arrangement Door bell

TRX1 TRX2 TRX3

6 Introduction

2.1.3.3 Model restrictions The NEXUS AM30 Nuda and NEXUS AM30 Luna model restrictions are listed below:

NEXUS AM30 Nuda The NEXUS AM30 Nuda does not contain any visitor counters and LED indicators, which results in the following limitations:

No light indication in aisle during alarm No visitor counting, door bell or auto antenna arrangement No distinction between incoming and outgoing alarms Not compatible with NEXUS Reporter

NEXUS AM Luna The NEXUS AM30 Luna does not contain any visitor counters, but does contain LED indicators, which results in the following limitations:

No visitor counting, door bell or auto antenna arrangement No distinction between incoming and outgoing alarms Not compatible with NEXUS Reporter

If all of the above mentioned features are required then the NEXUS AM30 Optima must be used.

This manual covers the complete functionality of the NEXUS AM30 Optima. Keeping the above mentioned model restrictions in mind, sections related to visitor counting and alarm indication must be ignored when the models NEXUS AM30 Nuda and NEXUS AM30 Luna are used.

2.1.3.4 Software restrictions The NEXUS AM systems can be tuned with Cross Points Field Bus Analyzer software. The minimum required Field Bus Analyzer version is v3.6.1.138. Any version lower than this will not support the NEXUS AM systems.

During setup of v3.6.1.138 or higher you are required to specify your dealer code in order to be able to use the Field Bus Analyzer software. If you do not have a dealer code yet then contact Cross Point to obtain one.

General AM and EAS issues 7

3 General AM and EAS issues

This chapter covers the various issues related to Acoustic Magnetic systems and Electronic Article Surveillance systems in general, like:

Noise sources Installation guidelines

3.1 Noise sources Listed below are various noise sources that might affect the performance of any EAS system. It is strongly advised to either eliminate these noise sources (as far as possible) or maintain the largest possible distance to these noise sources.

The following devices can create or absorb AM noise signals which can reduce the performance of an EAS system:

AM systems installed in other shops (even if they are installed up to 100m or more away from your store).

Any electronic device that operates around 58kHz or produces harmonic frequencies around 58kHz.

(Moving) Objects containing metal, like sliding and revolving doors, elevators, escalators, roller shutters, frames, etc.

Electronic devices, like computers, screens, cash registers, engines, transformers, etc.

Vertically positioned power cables, both low voltage and high voltage. Lights (flashing, fluorescent, halogen, gas-de-charge, etc.) Metal scan systems installed in close vicinity. Cross Points Metal

Scan operates around 19kHz in channel 0 and has a second harmonic frequency around 58kHz.

3.2 Installation guidelines Listed below are EAS installation guidelines to ensure a proper installed and functioning system. Not following these guidelines might result in less performance of the EAS system.

1. Check the shop entrance/exit carefully for possible noise sources prior to installation. If possible noise sources are found then try to eliminate these sources or pick the best position for the EAS system where the influence of these noise sources will be minimized.

8 General AM and EAS issues

2. If possible, connect a TRX or a set of antennas (1 TRX and 1 RX) and put them in the required position in the entrance/exit without drilling holes in the floor and bolting the antennas down. Switch the system on and test the performance. In this way the noise level and system sensitivity can be determined and if necessary (in case of high noise or poor sensitivity) the system can be moved to find a better position.

3. Always install the TRX antenna on that side where the highest noise is or where the highest noise can be expected.

4. Install the power supply for the EAS system at least 1m away from the antennas. If the power supply needs to be installed further away from the system make sure to extend the secondary power cable using a proper cable with the same dimensions (3 x 1mm2) and specifications as the original cable (preferably the exact same cable). Extending the power cable with a cable with different dimensions and specifications might result in less performance of the NEXUS AM system.

5. Avoid unnecessary long cables. Run the power supply cables in a direct line to the EAS antennas. Never run power supply cables vertically up the wall within one meter distance of the antennas (never around the entrance/exit doorframe).

6. By default the shielding of shielded cables is not connected to the electronic boards or antenna frames if not stated otherwise in the Connections chapter of this manual. Only in case of high noise and bad performance it is advised to experiment with connecting the shielding to see if these connections will improve the performance.

7. Do not connect more than 1 transceiver antenna to 1 power supply.

8. Metal framed doors may never swing between the EAS antennas, as this will distort the energy field of the system in such a way that it might result in high noise, poor detection and potential false alarms.

9. Do not connect unshielded and untwisted cables to the I/Os as this might affect the performance of the EAS system in a negative way.

10. Do not attach any equipment or devices to the antenna frames.

11. Take into account that when using a laptop within two meters of the antennas, the laptop or its power supply might create noise signals. Use a longer cable to create more distance between the laptop and the EAS system.

12. Use chemical anchors to mount the antennas firmly to the floor. Do not use screws and plastic plugs, as this usually results in the antennas getting loose and instable.

13. Do not install TRX and RX antennas with less than 50cm distance between them as this will have a negative effect on the performance.

Equipment and tools 9

4 Equipment and tools

The following equipment and tools are advised to use when installing and tuning the NEXUS AM system.

4.1 General installation tools The general tools required for installation of an EAS system (drills, screwdrivers, cutters, etc.) are not described in detail.

4.2 Laptop computer To properly adjust the NEXUS AM system through Cross Points software, it is strongly recommended to use a laptop computer.

A laptop will put you in full control of all NEXUS AM system settings and features.

The following minimal requirements are set for the laptop:

Screen resolution of 1024 x 786, true color 128 MB internal memory 15 MB free disk space A free USB port or a free COM port for RS-232 connection Internet connection

Supported operating systems:

Windows XP with service pack 2, Home Edition Windows XP with service pack 2, Professional Edition Windows Vista, Home Edition Windows Vista, Professional Edition

10 Equipment and tools

4.3 Converter The various transceivers and receivers are interconnected through the Cross Point Field Bus (see chapter 6.3, page 16 for further details on the Field bus structure).

To be able to connect the Field Bus to the laptop a converter is required. Depending on the type of available communication ports of your laptop or PC, you will either need a USB/RS-485 converter or an RS-232/RS-485 converter.

The recommended converter is the NEXUS Multi Converter. Cross Point can supply the NEXUS Multi Converter, which contains an RS-485/USB converter as well as an RS-485/RS-232 converter. RJ45 connectors enable easy connection of the Field Bus devices through FTP cable. Please refer to the Technical manual Multi Converter for further details on all features of this converter.

AM operating principle 11

5 AM operating principle

The NEXUS AM operates on the pulse-listening principle. Using the zero crossing of the 50Hz mains frequency as a trigger, a short burst of 58kHz signal is transmitted and a receiver window is opened after the transmission burst has stopped.

If a tag was present within detection range during the transmission burst, the resonance of this tag will be detected in the receiver window and an alarm will be triggered.

A single 50Hz mains frequency cycle is dived into three phases; phase A, B and C. Each phase covers 1/3 of the 50Hz cycle duration.

A noise reference window is opened to detect the environmental noise. This signal is compared with the signal received in the receiver window and allows the software to properly distinguish a tag signal from a noise signal.

Figure 2 shows the AM operating principle (at 50Hz, with a default delay of 200s) during one 50Hz cycle.

Figure 2: AM operating principle

Transmission burst

Receiver w

indow

Reference w

indow

20ms

0ms

Phase C Phase B Phase A

50Hz mode

12 AM operating principle

5.1 Synchronization principle When multiple AM systems are installed in each others vicinity, its very important to properly synchronize the transmission burst and receiver windows for all systems involved. If systems are not properly synchronized they will create false alarms and poor detection! Keep in mind that AM signals, when compared to other EAS technologies, can travel quite far (up to 100m or more) because of their longer wavelength.

Figure 3 shows two AM systems that are not properly synchronized.

Figure 3: Two AM systems NOT synchronized

The transmission burst of system B starts later than the burst of system A, resulting in the fact that system A is receiving the transmission burst of system B in its receiver window. This might create false alarms and poor detection on system A, where system B will function properly as the transmission burst of system A is not affecting the receiver window of system B.

This problem can be solved by making sure that both systems transmit and receive at the same moment, which can be realized by changing the delay time for one of the two systems.

Example: System A has currently a delay time of 0.2ms and system B a delay time of 1.4ms. The delay time of system B needs to be corrected to the delay time of system A (or vice versa), so their mutual transmission burst and detection windows will overlap each other (see Figure 4). This will result in both systems working properly without interference (see Figure 5).

Transmission burst

Receiver w

indow

Reference w

indow

20ms

0ms

Transmission burst

Receiver w

indow

Reference w

indow

System A

System B

50Hz mode

AM operating principle 13

Figure 4: Correcting the delay time of system B

Figure 5 shows two AM systems that are properly synchronized.

Figure 5: Two AM systems properly synchronized

The synchronization can be performed by making use of Cross Points software. The exact synchronization procedures are described in chapter 8.8.7.3 (page 67).

Transmission burst

Receiver w

indow

Reference w

indow

20ms

0ms

Transmission burst

Receiver w

indow

Reference w

indow

System A

System B

50Hz mode

Transmission burst

Receiver w

indow

Reference w

indow

20ms

0ms

Transmission burst

Receiver w

indow

Reference w

indow

System A

System B

50Hz mode

14 Connections

6 Connections

In the following chapters the connections between the TRX board, RX board and Controller are described.

Furthermore the Printed Circuit Boards (PCB) and the manual adjustments are explained.

6.1 A and B side of the antenna The NEXUS antenna has a front side (A) and a back side (B). These sides are indicated on the visitor counter on the top of the antenna.

The A-side is the side on which the electronic boards can be accessed.

When using the visitor counter (see also chapter 6.8 (page 33)) try to put all antennas in the AB-AB pattern, i.e. all antennas should be placed in the same way.

Figure 6: Antenna AB-AB pattern

In the above example the visitor counter side B of RX1 and side A of TRX2 should be switched off through the software. All other counter sides should be switched on.

Refer to chapter 8.8.7.2 (page 65) for TRX visitor counter settings and chapter 8.9.4.2 (page 84) for RX visitor counter settings.

RX1 TRX1 RX2

Side B Side B

Side A Side A

Connections 15

6.2 How to access the electronic boards In order to be able to access the electronic board, the top of the antenna needs to be removed as well as the Plexiglas plate(s) and the metal front cover. Follow the next procedure carefully to do this.

1. Put your left hand on top of the top part

2. Put your right hand around the antenna frame on the right side of the antenna

3. While pushing the top part to the right with your left hand, push the top part up with the thumb of your right hand. This will unlock the magnets and the click locking mechanism and the top part can be removed

4. Slide the Plexiglas plate on side A of the antenna upwards. Out of safety reasons is it strongly advised to remove this Plexiglas plate completely when servicing the electronics. When this is not possible make sure the Plexiglas plate is supported properly after it is moved upwards, to prevent it from falling down and causing an injury.

5. Unlock the screws in the front cover (side A).

6. Remove the front cover.

16 Connections

6.3 Field Bus connections The TRX and RX antennas are interconnected through the Field Bus by using preferably FTP cables, because FTP has an advantage to eliminate noise because of the extra shielding.

IMPORTANT: The Cross Point Field Bus requires the devices to be connected in a daisy chain connection. A star network is not allowed and will result in poor communication between the devices and the host computer or controller!

Each device (TRX PCB and RX PCB) has a unique address (this address is factory set and cannot be changed) and a PC/laptop enables local maintenance of the TRX and RX boards by using the Field Bus Analyzer software.

When the Field Bus is connected to the Field Controller and the Field Controller is connected to a Local Area Network (LAN), local servicing and data retrieval is possible. When an ADSL connection is available, the Field Controller can also be connected to the Internet, which enables changing of TRX or RX settings and information read-out from a remote location over the Internet.

6.3.1 Bus connections with laptop Figure 7 shows the Field Bus structure between the various antennas.

Connecting the Field Bus to a laptop (through an RS-485/USB converter) allows on-site maintenance through the Field Bus Analyzer software.

See chapter 8 for further information on how to use the Field Bus Analyzer software.

Figure 7: Field Bus structure

FTP FTPFTP

CP Field Bus Analyzer

FTP

Ant. 1 Ant. 2 Ant. 3 - - - - Ant. n (max. 127)

RS-485/USBconverter

USB

RS-485

A

B

A

B

A

B

A

B

Connections 17

6.3.2 Bus connections with Field Controller Cross Points Field Controller can be used to connect and control all TRX and RX antennas and to manage the data generated by the system through a local area network (LAN) or the Internet. A description of the full functionality of the Field Controller and its web server User Interface is not described in this manual, but described in the Field Controller manual.

Figure 8 shows the Field Bus connection to the Field Controller and the connection of the Field Controller to a stand-alone PC (through a crosswire) or to a LAN/Internet.

Figure 8: Bus connection to Field Controller and Internet

FTP

Maintenance PC

FTP FTP FTP

Ant. 1 Ant. 2 Ant. 3 - - - Ant. n (max 127)

LAN/Internet

Cro

ssw

ire

or

Field Controller

RS-485

RS-232

RS-485/RS-232 converter

A

B

A

B

A

B

A

B

18 Connections

6.4 Field Bus termination For the Field Bus to operate properly the bus needs to be terminated on the first device and the last device in the bus.

When an antenna is either the first or the last device in the Field Bus, then the bus needs to be terminated on that device.

In the example in Figure 9 the bus needs to be terminated on the RS-485/USB converter and on RX2.

Figure 9: Field Bus termination example

6.4.1 TRX bus termination Switch TERM to ON to terminate the bus on the TRX.

6.4.2 RX bus termination Switch TERM (SW1) to ON to terminate the bus on the RX.

CP Field Bus Analyzer

RS-485/USB converter

USB

RS-485

Terminate Field bus on this device!

Terminate Field bus on this device!

A

B

A

B

A

B

RX1 TRX1 RX2

Connections 19

6.4.3 Power supply The power supply (PSU) for the NEXUS AM system is 30VDC and must be connected to the POWER input of the TRX board. The RX board cannot be powered with an external power supply and must receive its power through the Field Bus connection (FTP cable) from the TRX board.

Figure 10: NEXUS AM power supply unit

6.4.3.1 Specifications Table 1 shows the specifications of the NEXUS AM Power Supply.

Technical specifications

Dimensions (L x W x H) 210 x 172 x 70 mm

Weight 3.2 kg

Input voltage / frequency / current 230VAC / 50/60Hz / 500mA or 115VAC / 50/60Hz / 1A*

Mains inlet type AC IEC with ON/OFF switch

Mains lead Euro Schuko to IEC, 1.5m length

Output voltage / current 27 33 VDC / 2A

Output cable 3x1mm2, fixed, 5m length This cable can be extended to 15m using 3x1mm2 cable or thicker.

Temperature range 0 50 oC

Primary fuse (F1) 230VAC 1A slow 115VAC 2A slow

Secondary fuse (F2) 2A slow

Table 1: Power supply specifications *must be internally switched to 115VAC before usage

Output cable ON/OFF switchMains inlet Output cable connection

30VDC GND SYNC

brown

blue

green-yellow

20 Connections

6.4.3.2 Power supply PCB & components Figure 11 shows the printed circuit board and its various components for the AM power supply.

Figure 11: AM Power Supply PCB

Component Function

F1 Primary fuse: 1A 250V slow

F2 Secondary fuse: 2A slow

J1 Mains cable input

J2 Primary transformer connection

J4 Key switch input

J5 Power ON indicator LED output

J6 Power supply output (27 33VDC / 2A)

J7 Secondary transformer connection

J8 Protective earth connection

SW1 Mains input voltage selector

Set switch in position 230 when 230VAC mains voltage (default) is used. Set switch to position 115 when 115VAC mains voltage is used.

Table 2: AM Power Supply components description

J1

J2

J7

F1

F2

SW1

J6

J4

J5

MA

INS

TR

AFO

P

RIM

AR

Y

TRA

FO

SE

CO

ND

AR

Y

SYNC GND PWR

J8

Connections 21

6.4.3.3 Power supply restrictions This power supply has the following restrictions which must be respected carefully in order to warrant the safety of the product and user:

Only to be used in combination with NEXUS AM systems For indoor use only Disconnect from mains power before opening the housing Do not cover the ventilation holes of the housing Local laws and regulations must be respected when installing and

servicing this device

A maximum of 3 antennas (1x TRX and 2x RX) can be powered using 1 power supply. Each connected RX will not transport the power through the Field Bus to the next device. If a converter is connected to an RX then this converter needs to be powered with a separate power supply! It is not necessary to install separate power supply wiring for the receiver, as the power supply is transported from the transceiver through the FTP cable to the connected receiver.

Figure 12: Power supply principle

NOTE It is prohibited to connect more than one TRX to a power supply! Use a separate power supply for each TRX antenna.

TRX RX RX

Power supply through FTP


No power supply through FTP!

Power supply input

No power supply through FTP!

PSU

22 Connections

Keeping the power supply principle in mind, the following power supply connections are recommended:

6.4.3.4 Power supply for a single system (mono) In a single antenna system setup (1 or multiple transceivers), a power supply must be connected to each individual TRX antenna. It is not possible to connect more than one TRX to one power supply.

Figure 13: Power supply connection: Single and multiple mono antennas

6.4.3.5 Power supply for a dual system In a dual antenna system setup (1 TRX and 1 RX), a power supply must be connected to each individual TRX antenna. It is not possible to connect more than one TRX to one power supply.

Figure 14: Power supply connection: Dual antenna system

TRX

PSU

RX

Power supply through Field Bus

TRX1

PSU

TRX2

PSU

Connections 23

6.4.3.6 Power supply for a triple system In a triple antenna system setup (1 TRX and 2 RX), a power supply must be connected to each individual TRX antenna. It is not possible to connect more than one TRX to one power supply.

Figure 15: Power supply connection: Triple antenna system

6.4.3.7 Power supply for large system setup Figure 16 shows an example for 5 antenna power supply. Each additional TRX antenna has to be powered with a separate power supply.

Figure 16: Power supply connections for more than 3 antennas



TRX1 RX1

PSU


TRX2 RX3RX2

PSU


PSU



Power supply input

TRX RX2 RX1

24 Connections

6.5 Antenna wiring The NEXUS AM TRX and RX antennas are configured with two identical antenna coil assemblies, one in the top and the second in the bottom of the antenna. Each coil assembly consists of two multi-turn coils (red wire and black wire in the top, green wire and white wire in the bottom).

Figure 17: TRX antenna wiring

AN

T

BO

T2

AN

T

BO

T1

AN

T

TOP

2 A

NT

TO

P1

TUNE TOP1 TUNE TOP2 TUNE TOP3 TUNE BOT3 TUNE BOT2 TUNE BOT1

TRX board

TOP COIL

BOTTOM COIL

black

red green

white

Connections 25

6.6 The NEXUS AM Transceiver (TRX) The NEXUS AM TRX is a fully digital AM transmitter and receiver, designed to operate at 58 kHz and has the following features:

Center frequency of 58kHz Real-time clock Date/time stamped events are stored in onboard memory and can be

retrieved through software

External interfaces; o push buttons o buzzer o relay o LEDs o tamper contact

Visitor counter connection Internet connectivity, allowing remote servicing and data retrieval

through use of the Field Controller

26 Connections

6.6.1 NEXUS AM Transceiver Printed Circuit Board Figure 18 shows the TRX PCB and its available components.

Figure 18: The NEXUS AM TRX Printed Circuit Board

RE

LAY

REL1

MINI SD CARD

BAT

BUS A BUS B

I/Os

+I/O2

I/O1

GND

TERM

on

1 2

SPEAKER

PO

WE

R 30V

GND

SYNC

NO

COM

NC

RESET BL1

B2

B3 S1

LEDs

BU

S A

1 B

US

B1

4 3 GND 2 1

4 3 GND 2 1

VIS COUNT

TAMPER BUZZER

AN

T

BO

T2

AN

T

BO

T1

AN

T

TOP

2 A

NT

TO

P1

TUNE TOP1 TUNE TOP2 TUNE TOP3 TUNE BOT3 TUNE BOT2 TUNE BOT1

D8

Connections 27

6.6.1.1 TRX PCB Components Table 3 shows the NEXUS AM TRX components and a description of their function.

Component Function

ANT BOT1 ANT BOT2

Bottom transmitter/receiver antenna loop Bottom signal suppression loop

ANT TOP1 ANT TOP2

Top transmitter/receiver antenna loop Top signal suppression loop

B2 Push button

B3 Push button

BAT Backup battery for internal clock.

BL1 LED indicator. Blinks during start-up of the TRX board and in case the TRX board has no connection with a host when connected to the Field Bus. Lights up continuously when a connection with a host has been established.

BUS A Field Bus A connector for RJ45 connection. Allows the board to be connected in the Field Bus structure.

BUS A1 Analogue connection to the receiver. Relates to BUS A connector.

BUS B Field Bus B connector for RJ45 connection. Allows the board to be connected in the Field Bus structure.

BUS B1 Analogue connection to the receiver. Relates to BUS B connector.

BUZZER On-board buzzer for alarm notifications

D8 LED indicator. Lights up when a power supply is connected and switched on.

I/Os Programmable input/output. Allows connection of external devices like cameras, push buttons, buzzers, etc.

LEDs LED array, indicates various system settings.

MINI SD CARD Mini SD card slot. An SD card containing special audio notification messages can be inserted. For future use.

POWER External power supply input connector.

REL1 The actual relay.

28 Connections

RELAY The external connection for relay REL1. Normally Open (NO), Common (COM) and Normally Closed (NC) potential free contacts are available to connect external devices like cameras, buzzers, etc.

Relay max. rating: 30VDC/1A

RESET Reset button. Pressing this button will result in a software reset of this board without interrupting the Field Bus.

S1 Rotary switch for selecting one of the following options:

0. Default active 1. Test mode

All other positions of this rotary switch are not used.

SPEAKER External loudspeaker connection. Allows audio files to be played (only in combination with the mini SD card).

TAMPER External tamper connector. Allows connection of a mechanical switch to detect unauthorized opening of the antenna housing.

NOTE: Not implemented yet in the antenna housing.

TERM Field Bus termination switch.

The Field Bus needs to be terminated properly to avoid signal reflections which can cause bad communication. The first and last device in the Field Bus structure need to terminate the bus. Switch to ON if this TRX is the first or last device in the Field Bus.

TUNE BOT1 TUNE BOT2 TUNE BOT3

Pluggable bridge positions to tune the TRX transmitter bottom antenna loop signal to maximum value

TUNE TOP1 TUNE TOP2 TUNE TOP3

Pluggable bridge positions to tune the TRX transmitter top antenna loop signal to maximum value

VIS COUNT Visitor counter connector. Connect the wire to the visitor counter to this connector.

Table 3: The NEXUS AM TRX components

Connections 29

6.6.2 Transceiver - receiver cable connections Figure 19 shows the transceiver to receiver cable connections.

Figure 19: Receiver cable connections

IMPORTANT! Make sure that the shielding of the wire is only connected on the receiver side, NOT on the transceiver side!

6.6.3 I/O connections The NEXUS AM TRX board is equipped with two I/Os which can be used for connecting a pushbutton (Forced Alarm option) or as output for other external devices (e.g. camera).

To avoid interference, caused by the wires which will be connected to any of the I/Os, it is very important to only connect the wires to the I/O connector contacts.

Do not connect any of the wires directly to a GND contact on the TRX board or on the power supply! Use the GND connector to connect to the ground. The I/Os have a current limit of 70mA. Do not connect devices to the I/Os that draw more than 70mA, else the I/O drivers will get damaged!

TRANSCEIVER SIDE (SHIELDING NOT CONNECTED!) RECEIVER SIDE

X

green

yellow

shield

blue

red green

yellow

shield

blue

red

30 Connections

Figure 20 shows the proper way to connect a Forced Alarm pushbutton between I/O1 and +.

Figure 20: Proper I/O connections

+ I/O2 I/O1 GND

PUSH BUTTON

FTP

TRX board

Connections 31

6.7 The NEXUS AM Receiver (RX) The NEXUS AM Receiver can be connected to the NEXUS AM Transceiver to enhance the detection range. All information and events are stored on the transceiver, not on the receiver board itself.

6.7.1 NEXUS AM Receiver Printed Circuit Board Figure 21 shows the RX PCB and its available components.

Figure 21: The NEXUS AM RX Printed Circuit Board

6.7.1.1 RX PCB Components Table 4 shows the NEXUS AM RX components and a description of their function.

Component Function

ANT BOT Bottom receiver antenna loop

ANT TOP Top receiver antenna loop

BAT Backup battery for internal clock.

VIS COUNT

BAT

RESET D7 D8

BUS A BUS B

TAMPER

POWER

BU

S A

1 B

US

B1

ANT TOP ANT BOT

TERM

32 Connections

BUS A Field Bus A connector for RJ45 connection. Allows the board to be connected in the Field Bus structure.

BUS A1 Analogue connection to the transceiver.

BUS B Field Bus B connector for RJ45 connection. Allows the board to be connected in the Field Bus structure.

BUS B1 Analogue connection to the transceiver.

D7 Red LED. ON (blinking) when the receiver is in bootloader mode (e.g., during firmware upload). OFF during normal operation.

D8 Green LED. ON indicates a connection with a host computer/controller. OFF indicates that the connection with the host is lost.

POWER LED indicator. Lights up when power supply is received through the Field Bus.

RESET Reset button. Pressing this button will result in a software reset of this board without interrupting the Field Bus.

TAMPER External tamper connector. Allows connection of a mechanical switch to detect unauthorized opening of the antenna housing.

NOTE: Not implemented yet in the antenna housing.

TERM Field Bus termination switch.

The Field Bus needs to be terminated properly to avoid signal reflections which can cause bad communication. The first and last device in the Field Bus structure need to terminate the bus. Switch to ON if this RX is the first or last device in the Field Bus.

VIS COUNT Visitor counter connector.

Connect the wire to the visitor counter to this connector.

Table 4: The NEXUS AM RX components

NOTE Pins 3 and 6 of RJ-45 connector BUS A are not connected to pins 3 and 6 on RJ-45 connector BUS B. Unlike the NEXUS RF systems, pins 3 and 6 are not used as synchronization wires, but for communication between the transceiver and receiver.

For this reason it is not allowed to connect NEXUS RF and NEXUS AM systems on the same Field Bus!

Connections 33

6.8 The visitor counter The NEXUS AM is equipped with a visitor counter. This counter allows counting of visitors as well as determining the movement direction of a person who generated an alarm.

Both TRX and RX antennas can therefore be equipped with a visitor counter PCB. The TRX antenna holds the RX visitor counter PCB (IR-RX) and the RX antenna holds the TX visitor counter PCB (IR-TX).

Figure 22 shows the visitor counter principle.

Figure 22: Top view of the visitor counter principle

The IR LED on side B of the RX antenna transmits an infra-red signal, which is received by both IR receivers on side A of the TRX. When the infra-red signal is interrupted by a person walking in (incoming), first IR-RX1 will receive no signal and then IR-RX2 will receive no signal. In this way the visitor counter registers the movement direction. The same principle is used for outgoing persons.

As shown in the above figure, each visitor counter PCB has an A and B side. The transmitter IR-LEDs and the IR receivers can be switched on or off per side. This is necessary for each first and last antenna in a row. For example, if the system in the above figure consists just of two antennas, then the visitor counter side B of the transceiver antenna and side A of the receiver antenna must be switched off.

NOTE Not switching off the unused visitor counter sides may result in incorrect customer counting totals.

It is possible to increase the intensity of the IR-LEDs. This can be useful in bright and sunny environments, to ensure proper functioning of the visitor counter.

See chapter 8.8.7.2 (page 65) on how to change the various TRX visitor counter settings and chapter 8.9.4.2 (page 84) on how to change the various RX visitor counter settings.

For the visitor counter to operate properly the minimum distance between the transceiver and receiver is 0.5m. The maximum distance is 3m (per aisle).

visitor counter PCB (IR-TX) visitor counter PCB (IR-RX)

IR LEDs

IR Receivers

Side B Side B Side A Side A

Inco

min

g

IR-RX1

IR-RX2

Out

goin

g

34 Connections

6.9 Various connections For proper operation of the NEXUS AM system it is very important to interconnect the transceivers and receivers in the correct way. This chapter shows and explains these various connections.

6.9.1 Single antenna system (no aisle) The NEXUS AM system can be used as a single antenna system (mono). When no receivers are connected to the transceiver, the transceiver will automatically function as a mono antenna system. Visitor counting is not possible.

Figure 23: Single antenna system

6.9.1.1 Multiple transceivers In case only transceivers are used, the transceivers can either be used as complete stand-alone antennas, or they can be interconnected with FTP cables to create the Field Bus. Connecting the Field Bus to a computer or controller will allow central (remote) maintenance and reports to be generated. Visitor counting is not possible.

Figure 24: Transceivers only with FTP connection

PSU

TRX1

TRX1 TRX2

FTPPSU PSU

Connections 35

6.9.2 Dual antenna system (single aisle) In case receivers are connected to the transceiver it is of great importance to connect the FTP and analogue connection cables to the proper connectors on the TRX and RX boards.

Figure 25 shows the connections for a dual system (TRX + RX).

Figure 25: Dual antenna system connections

6.9.2.1 Backfield control When only one receiver antenna is connected to a transceiver and this receiver is connected to Bus A of the transceiver, then the detection of the B-side of the transceiver can be reduced if required. This is called Back field control.

When enabled, back field control makes it possible to reduce the back field detection of the TRX antenna by switching of its internal receiver circuit. The TRX antenna will then act as a transmitter only and detection is on the RX antenna only, resulting in a concentrated detection area between the antennas.

Backfield control is only possible on a transceiver, not on a receiver.

How to enable/disable back field detection is described in chapter 8.8.7.4.1 (page 71).

Power supply connections are not shown in the image but are described in chapter 6.4.3 (page 19).

TRX RX

BUS A1 BUS B1

BUS A BUS B FTP

Receiver cable

Back field control

Aisle 1

X No back field control

Side A

36 Connections

6.9.3 Triple antenna system (double aisle) In case receivers are connected to the transceiver it is of great importance to connect the FTP and analogue connection cables to the proper connectors on the TRX and RX boards. Figure 26 shows the connections for a triple system (RX + TRX + RX).

Figure 26: Triple antenna system connections

In this system setup it is important that the FTP cable is connected to the proper bus to allow for the receiver lights to light up in case of an alarm. The receiver FTP cable has to be inserted into the transceiver board with reference to the side (A or B) of the transceiver on which the particular receiver is installed.

Figure 26 shows receiver RX1 installed on the backside (side B) of transceiver TRX1. The FTP cable for RX1 then needs to be plugged into the BUS B connector of TRX1. RX2 is installed in front (side A) of TRX1 and the FTP cable for RX2 thus needs to be plugged into the BUS A connector of TRX1.

Power supply connections are not shown in the image but are described in chapter 6.4.3.

TRX1 RX2

BUS A1 BUS B1

BUS A BUS B FTP

Receiver cable

RX1

BUS A1 BUS B1

BUS A FTP

Receiver cable

BUS B

Aisle 1 Aisle 2

Side A

Side B

Connections 37

6.9.4 Quad antenna system (triple aisle) In case four or more NEXUS AM antennas need to be installed as one complete system, all antennas need to be connected as shown in Figure 27.

Figure 27: Quad antenna system

When a receiver is installed between two transceivers (RX1 in the above example), then this receiver needs to be connected to both transceivers through the analogue receiver cables to make this receiver detect tags in both aisle 2 and aisle 3.

Backfield control is possible on those transceivers that are the first and/or last antenna of the row and the receiver is connected to BUS A of the transceiver. In this case the backfield detection of TRX1 can be either enabled or disabled. Backfield control on TRX2 is not possible, since this antenna is installed between two receivers.

If no detection is required in aisle 2, then the receiver cable between TRX2 and RX1 can be disconnected. Backfield control on TRX1 and TRX2 will then be possible, if required.

Power supply connections are not shown in the image but are described in chapter 6.4.3.

6.9.5 Large systems Large systems (more than 4 antennas) need to be installed as described in the previous section. If one complete Field Bus is required then all antennas need to be interconnected with FTP cable.

RX1 TRX2

BUS A1 BUS B1

BUS A BUS B FTP

Receiver cable BUS A1 BUS B1

BUS A FTP

Receiver cable

BUS B BUS A BUS B FTP

BUS A1 BUS B1 Receiver cable

RX2

Aisle 1 Aisle 2 Aisle 3

TRX1

Back fieldcontrol

Side A Side A

Side B

38 Configuration

7 Configuration

This chapter describes the recommended adjustment procedure for the NEXUS AM transceiver and receiver.

7.1 General connections Refer to chapter 3 (page 7) for noise sources and installation

guidelines.

Position the antenna(s) at the required location. Connect the power supply to the power input of the TRX board Connect the FTP cable between the RX and TRX board (in case of a

multiple antenna setup)

Connect the receiver cable between the RX and TRX board (in case of a multiple antenna setup)

Switch on the power supply the power LEDs on both the TRX and RX will light up.

Wait for about 10 seconds for the system to start up.

7.2 TRX configuration settings Although the TRX comes pre-configured with factory settings, it can be necessary to fine-tune this board for best performance in your specific environment.

The TRX can be configured through the Field Bus using a host computer and the Cross Point Field Bus Analyzer software or configuration can be performed using Store Portal on the Field Controller.

7.2.1 TRX configuration - Field Bus Analyzer Please refer to chapter 8 for further details on how to configure the TRX using the Field Bus Analyzer software.

Cross Point Field Bus Analyzer 39

8 Cross Point Field Bus Analyzer

This chapter covers the NEXUS AM transceiver and receiver settings in combination with the Cross Point Field Bus Analyzer (Field Bus Analyzer) software.

Please refer to chapter 2.1.1 for details on the Field Bus structure.

For all other general Field Bus Analyzer settings we refer to the Cross Point Field Bus Analyzer Manual (download available at www.crosspoint.nl).

IMPORTANT Make sure you have Cross Points Field Bus Analyzer v3.6.1.138 or higher and that you have your dealer code available during setup of the software, otherwise you will not be able to use the software. Refer to section 2.1.3.4 (page 6) for further details.

8.1 Installing the Field Bus Analyzer 1. Start the Field Bus Protocol Analyzer Setup.exe file and the

Installation wizard will start.

Figure 28: Field Bus Analyzer setup - Welcome screen


2. Click the Next > button

Figure 29: Field Bus Analyzer setup Select features and destination folder

3. This window lets you select which features you want to install. The options are:

Service Components + Analyzer Components (user interface). This is the default setting.

Service Components only (without user interface). For example in combination with the NEXUS Reporter software.

To install the service only, the Analyzer Components need to be disabled. To do this,

1. Click on the icon in front of the Analyzer Components

2. Select the option Entire feature will be unavailable

Figure 30: Field Bus Analyzer setup Select components

4. Select the destination folder for the Field Bus Protocol Analyzer to be installed in. The default location is C:\Program Files\Cross Point\. Click the Browse button to change the destination folder, if required. Click the Next > button to continue.


Figure 31: Field Bus Analyzer setup Ready to install

5. Press the Next > button to start the installation of the Field Bus Protocol Analyzer. Press the < Back button to change the destination folder or the Cancel button to cancel the installation.

Figure 32: Field Bus Analyzer setup Successful install

6. Click the Finish button and the Field Bus Analyzer has successfully been installed.

8.2 Starting the Field Bus Analyzer After having installed the Cross Point Field Bus Analyzer, go to

Start > All programs > Cross Point > Field Bus Protocol Analyzer (or your, during installation specified, destination folder)

to start the Field Bus Analyzer.


8.3 First time start-up When the Field Bus Analyzer is started for the first time after it has been installed, you will be taken through the networks selection wizard.

Figure 33: Field Bus Analyzer First time start

1. Click the Next > button

Figure 34: Field Bus Analyzer setup Enter dealer code

Enter your dealer code (should be supplied by Cross Point) and specify your name. This name will be used in the event log.


2. Press the Next > button and the Networks window will open.

Figure 35: Field Bus Analyzer Networks

3. The Networks window shows all detected serial ports on this computer. Select the network to which the NEXUS AM systems are connected.

Figure 36: Field Bus Analyzer Networks network selection


4. Press the Finish button to store the selected settings and close the wizard. The Field Bus Analyzer will start.

Once the Field Bus Analyzer has started, changes in the previous settings can be made via Edit Options.


8.4 User Interface Mode The Field Bus Analyzer has three User Interface Modes;

1. User mode: the user can only view events and view limited functionality in the advanced pages but cannot change any device settings.

2. Installer mode: the installer is able to modify all device settings and view device events, but cannot view low level messages, send custom messages or use scripting. This is the preferred mode for installers.

3. Integrator mode: the integrator has no restrictions.

When the Field Bus Analyzer is started for the first time, it will automatically start in Installer User Interface Mode, which enables the installer to completely configure the NEXUS AM system.

Select menu item Edit > Options to change the user interface mode (see Figure 37) to change the User Interface Mode.

Figure 37: Options User interface mode


8.5 All devices Device type tab When the Field Bus Analyzer is started, the All devices screen will be opened.

All connected and powered devices will appear in the device tree.

Figure 38: The All devices screen

The various detected devices are shown in the Device tree.

The devices are either grouped by the entrance the devices are related to (when the Entrances-folder is selected) or by their function (when the Devicetype-folder is selected).

Clicking on one of the available devices in the device tree will show specific device information and allows device properties and settings to be changed.

The next chapters will cover the specific transceiver and receiver properties and settings.

Device tree


8.6 Logon to a device The NEXUS AM devices are secured against unauthorized access by means of a password, the Access code.

Furthermore a specified user name will be used in the event log to record the changes this user has made to various settings.

When the Analyzer is started, it will automatically try to logon to each device using the user name that was specified during installation and the default Installer Access code 123456789. The logon status can be viewed in the All devices pane (see Figure 39).

Figure 39: All devices Logon status

Click the Validate button in case a logon to one or more devices was not successful.

After installation of the NEXUS AM system it is strongly recommended to change this code into your own new access code. See section 8.6.1 for details on how to change the default access code.


8.6.1 How to change the default access code Click the Edit menu item and select Options to open the Options window. Select the Default access code tab in the Options window and the Default device access code window will open (see Figure 40).

Figure 40: Default device access code window

To change the default access code

1. Enter the new default access code

2. Click the OK button to save the new settings 3. The new default access code will be stored in each connected device

This new default access code will now be used every time the Field Bus Analyzer is started.


8.6.2 When the access code is unknown It is strongly advised to create a personal access code which can be remembered properly, but is not too easy for others to detect.

When however the access code is not known (anymore), a new code must be created using a special unlock code. You will have to contact Cross Point to receive this unlock code.

The unlock code is based on the device ID of the specific device and can only be generated by Cross Point. It must be used for that specific device it is requested for.

Follow the next procedure to create a new access code with use of the key code:

1. Click the Validate button in the All devices screen. The Logon to device window will appear (see Figure 41)

Figure 41: Logon to device

2. Click the Change button and the Change access code window will appear (see Figure 42).

Figure 42: Change access code

3. Use the unlock code (which you have received from Cross Point) as the Old access code

4. Enter a new access code and confirm the new access code

IMPORTANT NOTE: Be aware of the fact that Cross Point can charge money for supplying unlock codes!


8.7 Installing device profiles Device profiles are device specific files which contain the properties and descriptions for that device.

During installation of the Field Bus Analyzer the device profiles are already installed. However as a result of new developments it is possible that new device profiles will become available (download from www.crosspoint.nl).

These device profiles can be installed by following the next procedure:

1. Select File > Import Deviceprofile(s) and you will be prompted to select the required device profile.

2. Select the file and click Open to install the device profile.

A message will appear if you try to install device profiles which are older than or equal to the ones already installed.


8.8 NEXUS AM Transceiver By selecting a NEXUS AM TRX in the device tree the device information screen of that TRX is shown (Figure 43).

Figure 43: TRX Device Information

The following folders are shown and will be described more detailed in the next chapters:

Device Information Properties (only when activated in Edit > Options >UI Mode) Events Counting Notifications NEXUS AM Systems

Table 5 shows the various available buttons and their associated actions.

Button Action

Show statistics Toggles the Device Statistics screen. See chapter 8.8.1 for further details.


Locate device Pressing this button will activate the buzzer on the PCB of this device anf the LEDs in the visitor counter (depends on model), which makes it easy to locate the exact position of this device. Press this button again to stop the buzzer and LEDs. When the locate function is active and a person walks through the aisle, the LEDs will also stop.

Reset device Resets the device without interrupting the Field Bus connection.

Table 5: Device Information screen button explanation

8.8.1 TRX Device Statistics The Device Statistics screen (Figure 44) shows the various device statistics which refer to the Cross Point Field Bus Protocol.

These statistics are useful in situations where there is a communication problem between this device and the host. CRC errors and framing errors might be caused by bad connections of the FTP cable.

Figure 44: TRX Device Statistics

NOTE These values are all read only and can therefore not be modified.

Pressing the Clear button will reset all values to zero. Pressing the Refresh button will update the statistics by retrieving the information from the TRX board.

Press the Hide statistics button to hide the statistics info.


8.8.2 TRX Device Information The Device information screen (Figure 43) shows the various hardware and software versions of the TRX board.

8.8.3 TRX Properties The NEXUS AM TRX board has various properties which can be viewed and, when authorized, modified in the Properties screen.

Figure 45 shows some TRX properties.

Figure 45: TRX Properties


Button Action

Apply Applies the changes made to property values and stores the new values in the TRX board.

Refresh Refreshes the screen by retrieving the TRX properties from the TRX board.

Defaults Restores the default property values.

Table 6: Properties screen button explanation


8.8.3.1 General settings Fout! Verwijzingsbron niet gevonden. shows the various general settings, their descriptions and values.

Setting Description & Value(s)

Device type NEXUS AM Transmitter (read only)

ID of the device Unique 8 digit hexadecimal number, which represents the device address (read only).

Enabled By default the device is enabled. When the device is disabled, it can still receive messages from the Field Bus, but does not send any messages via the bus. The device will remain visible in the Field Bus Analyzer.

No Yes (default)

Name The device name. The name can be changed and should be a clear indication of the location of this antenna. Name length is 30 characters max.

Date/Time of the device Set the internal clock (date and time). Use current host date/time (default) Enter a specific date/time

Table 7: General settings

8.8.3.2 General properties Table 9 shows the various general properties, their descriptions and values.

Property Description & Value(s)

Sync clock Synchronize the internal clock of the TRX board with the host computer when the Field Bus Analyzer is started. This is especially useful when all devices are connected to the same host.

Off On (default)

System options Various system options related properties.

Disable aisle light up Enable optical output (for Cross Point

only)

Table 8: General properties


8.8.3.3 Synchronization Table 9 shows then various synchronization related properties, their descriptions and corresponding values.


Burst frequency Select the transceivers burst (transmission) cycle and burst duration.

37.5 Hz, 1.6 ms 50 Hz, 1.6 ms (default) 75 Hz, 1.6 ms 150 Hz, 0.8 ms

Burst offset (s) Set the burst offset (delay), measured from the zero-crossing of the 50Hz mains cycle.

0 (minimum value) 200 (default value) 20000 (maximum value)

Burst options Set various burst options Normal (default) Transmit 8-loop only (this will switch of the

O-loop transmission and detection)

Power frequency (Hz) Shows the power supply mains frequency

PSU voltage percentage Set the power supply voltage. Its possible to reduce the transceiver antenna signal power by reducing the power supply voltage percentage.

0 (minimum value) 100 (maximum value, default)

Table 9: Synchronization properties

8.8.3.4 Detection Table 10 shows the various detection related properties, their descriptions and corresponding values.


Threshold level channel A Sets the threshold level for channel A. 0 (auto threshold, default) 100 (maximum value)

Threshold level channel B Sets the threshold level for channel B. 0 (auto threshold, default) 100 (maximum value)

Table 10: Detection properties


8.8.3.5 Visitor counter Table 11 shows the various visitor counter properties, their descriptions and corresponding values.


Use visitor counter to determine alarm direction

Select here if you want to use the visitor counter to detect the movement direction of a person creating an alarm.

True False (default)

Maximum alarm wait time (in x100ms)

When the previous property is enabled, the maximum wait time (the time between tag detection and the actual alarm) can be specified here. During this wait time the transceiver will determine in which direction the visitor counter beams are interrupted and create an alarm accordingly. If the wait time expires without interruption of the visitor counter beams, the transceiver will generate an unknown alarm.

10 (= 1 second, minimum value) 20 (= 2 seconds, default value) 50 (= 5 seconds, maximum value)

Table 11: Visitor counter settings

8.8.3.6 Arrangement properties Table 12 shows the various arrangement properties, their descriptions and values. Some of these values are read-only in the Field Bus Analyzer.


Configuration options Lets you select the following configuration options:

Minimized backfield Side A enabled (default) Side B enabled (default)

Current antenna configuration

Shows the current antenna configuration.

Device type bus A Shows which device type is connected to Bus A

Device ID bus A Shows the ID of the device that is connected to Bus A

Device type bus B Shows which device type is connected to Bus B


Device ID bus B Shows the ID of the device that is connected to Bus B

Table 12: Arrangement properties

8.8.3.7 Tuning properties Table 13 shows the various arrangement properties, their descriptions and values. These values are read-only in the Field Bus Analyzer.

Setting Description & Value(s)

Top antenna loop voltage at 58kHz (V)

Shows the actual amount of signal (in voltages) that is being transmitted by the top loop at 58kHz

Bottom antenna loop voltage at 58kHz (V)

Shows the actual amount of signal (in voltages) that is being transmitted by the bottom loop at 58kHz

Table 13: Tuning properties


8.8.4 TRX Events Various date and time stamped events are stored in the TRX board and can be retrieved and viewed by clicking on the Events tab. All events are date-time stamped, so you can recall exactly which changes have been made at what moment and by which person.

The events can be saved to an XML file by selecting the save icon or by selecting File > Save (or Save as). Specify a filename and location to save the file to and press the Save-button to save the file to disk. Figure 46 shows the NEXUS AM TRX events screen and the save-to-disk button.

Figure 46: TRX Events

In case of problems with the board, make sure to save the events to a file and send the file to Cross Points support department together with a clear problem description. To save all the events you will have to completely scroll down to the eldest event. This will cause the software to retrieve all events from the TRX board and then these events can be saved to file. If you do not scroll down completely prior to saving the events, only a part of the events is saved.

Pressing the Clear button will remove all events from the selected TRX board. Only the last event Event log cleared will remain, indicating when the event log was cleared.

Pressing the Refresh button will update the Events screen by retrieving the events from the TRX board.

Save button


8.8.5 TRX Counting Figure 47 shows the Counting screen which contains a graphical display of the visitor and alarm totals.

Figure 47: Counting

The counting type lets you select which type of counting information will be displayed. The available options are:

Visitors o All data

incoming and outgoing for both side A and side B individually displayed o Average

the average of incoming and outgoing for side A and side B combined o Counter blocked

number of counter blocked messages o In/Out

incoming and outgoing combined for side A and side B o Side A

incoming and outgoing for side A only o Side B

incoming and outgoing for side B only

Alarms o All alarms

Incoming, outgoing and undefined alarms* for side A and side B


o Jammed Blockage of the receiver band

o Side A Incoming, outgoing and undefined alarms* for side A

o Side B Incoming, outgoing and undefined alarms* for side B

* depends on setting Use visitor counting to distinguish between in- and outgoing alarms


Button Action

Reset counters Pressing this button will reset the counters. Which counters are reset depends on the selection made under Counting type.

Refresh Refresh the page with the latest data retrieved from the TRX board.

Table 14: Counting


8.8.6 TRX Notifications In case of an alarm situation notifications will be used to draw attention and to inform you about the type of alarm. These notifications as well as others can be set in the Notifications screen (Figure 48).

Figure 48: Notifications

Table 15 shows the Notifications screen buttons and their associated functionality.

Button Action

Test Select and modify a notification and press this button to test the new settings

Save Applies the changes and stores the new values in the TRX board.

Refresh Refreshes the screen by retrieving the notification settings from the TRX board.

Defaults Restores the default values.

Table 15: Button explanation


The following notifications can be set:

8.8.6.1 General notifications

Notification Explanation

Device active indication

Enable this notification if you want to visualize that the antenna is switched on. For example the green LED can be switched on infinite to show the visitor that the system is active.

Device tampered When a tamper sensor is connected to the transceiver board, a notification can be triggered when the cover of the antenna is removed without authorization.

Table 16: General notifications

8.8.6.2 Visitor counting notifications


Outgoing visitor When a visitor leaves the store, a door bell notification can be triggered to notify employees in the store that a visitor just left the store.

Incoming visitor When a visitor enters the store, a door bell notification can be triggered to notify employees in the store that a visitor has just entered the store.

Counter blocked When the infra-red beam of the visitor counter is blocked for 30 seconds or more (by for example a visitor or advertising), a counter blocked notification can be triggered to notify visitors and employees in the store that there is an aisle blockage.

Table 17: Visitor counting notifications


8.8.6.3 Alarm notifications


Tag detected This notification can be used as a pre-alarm feature when the option Use visitor counter to distinguish in- and outgoing alarms has been enabled.

In case the option Use visitor counter to distinguish in- and outgoing alarms is disabled (so no detection of incoming and outgoing alarms), this notification must be used as the general alarm setting.

Tag detected outgoing*

Notification setting for outgoing alarms*

Tag detected incoming*

Notification setting for incoming alarms*

Tag detected unknown*

Notification setting for alarms where the direction could not be determined*

Tag detection disabled

Tag detection can be temporarily disabled (through one of the available I/Os). Set this notification to indicate when tag detection has been disabled.

System jammed Set this notification to notify store employees in case the system is being jammed with a jamming device or as a result of another high noise source.

Table 18: Alarm notifications

* depends on setting Use visitor counting to distinguish between in- and outgoing alarms


8.8.7 TRX AM Systems The AM Systems folder enables quick and easy adjustment of the most important transceiver properties.

The screen is divided into the following sections:

Overview Visitor counter (if installed) Synchronization Detection Tuning

8.8.7.1 Overview The Overview screen (Figure 49) shows some general properties and allows some of these properties to be modified.

Figure 49: Overview

Refer to chapter 8.8.3 (page 53) for the property explanation and corresponding values.


8.8.7.2 Visitor counter The integrated visitor counter will register the number of people entering the store and the number of people leaving the store. The Visitor counter screen (Figure 50) shows the visitor counter configuration and settings.

Figure 50: Visitor counting

Counter configuration: The counter configuration section shows the current TRX antenna (top view) and the neighboring RX antennas. Select either the A-side or B-Side or both (depending on the actual installed RX antennas) by marking the corresponding checkbox. Make sure to deselect the side which is not used to prevent errors being reported by the TRX board.

The number of counted visitors as shown in the image is real-time updated when a visitor passes between the antennas.

Notifications for incoming (door bell) and outgoing visitors, as well as visitor counter blocked have to be set in the Notifications screen (see section TRX Notifications, page 61).

By default the Today totals are shown, but selecting the Totals since installation option will show the totals since the system was installed or since the last time the values were reset to zero.

The counter values can be reset to zero by clicking the Reset values button. The in/out direction indication can be changed by selecting the Change direction option.


Alarm configuration: Use visitor counter to distinguish in- and outgoing alarms

The visitor counter can be used to determine the movement direction of a person who creates an alarm. Marking the checkbox will activate this feature. If this property is switched off, it is not possible to have difference in alarm indication and a general alarm indication will be generated.

In order for the TRX to detect in which direction the person is moving, a short delay between a detected tag and a detected person needs to be applied. This delay time can be selected behind the Wait time between tag detection and counter activity property. The available delay times are 1, 2, 3, 4 or 5 seconds.

If the customer counter detects a person within the specified delay time, the movement direction of this person will be associated with the detected tag and an alarm will be generated accordingly.

If the customer counter doesnt detect a person within the specified delay time, the generated alarm will be an undefined alarm.

In case a pre-alarm (visual, audible or silent indication that a tag has been detected, but the movement direction has not yet been determined) is required, the Tag detected notification needs to be set (see section TRX Notifications, page 61).


8.8.7.3 Synchronization When multiple AM systems are installed in relative close vicinity of each other, it is of extreme high importance that the transmission bursts of all transmitters (transceivers) occur at the same moment. To be able to synchronize these transmission bursts, the Synchronization screen is available.

IMPORTANT When the Synchronization screen is open, the transmission burst of this transceiver is disabled. As a result of this, the transceiver and connected receiver(s) will not detect any tags! Make sure to leave this screen to enable detection of tags again.

Figure 51: Synchronization - faulty

When the transmission burst are not synchronized properly, false alarms and reduced sensitivity will be the result. The Synchronization screen will show exactly if and where other system transmission bursts are detected.

The above screenshot shows an example of faulty synchronization. Our systems transmission burst (Burst window 1, indicated as a vertical blue bar) is at a different moment in time than the other systems transmission burst.

Synchronization mode Before starting the synchronization procedure, you must select the synchronization mode. The following options are available:

1. Switch off all other transceivers this option will switch off all other transceivers that are part of this Field Bus. This way you will know for

Other system(s) transmission burst(s)

Our system reference window (orange vertical

bar)

Our system receiver window

(green vertical bar)

Our system transmission burst (blue vertical bar)


sure that all transceivers are switched off and the signal that might still be visible in the synchronization window is indeed another AM system which is not part of your installation.

Start with this option when you synchronize the first transceiver in your installation. If no other AM systems are visible, then leave the offset value at the default value of 0.2ms. When other AM systems are visible, synchronize your transceiver with the other AM system as described under Manual or Automatic synchronization.

2. Switch off all other transceivers except: - this option will switch off all other transceivers that are part of this Field Bus, except the one that is selected from the drop down box.

Use this option for all other transceivers that are part of your installation. Select the first transceiver, the one you have synchronized in the previous step, from the drop down box and synchronize all other transceivers with the first transceiver as described under Manual or Automatic synchronization.

3. All other transceivers will remain bursting this option will leave all other transceivers bursting. All other transceiver bursts will thus be visible in the synchronization window. Make sure to properly synchronize all bursts as described under Manual or Automatic synchronization.


We now have two ways of synchronizing the systems; manually or automatically.

Manual synchronization: By default the transmission burst can be synchronized manually by dragging and moving the burst throughout the complete 20ms time base.

Just hover the mouse cursor over our transmission burst (the cursor will change to a horizontal double arrow) and press down your left mouse button. While keeping the mouse button pressed, move the transmission burst and position it on top of the other systems transmission burst. Together with moving the transmission burst, also the receiver and reference windows will move automatically since they have a fixed reference to the transmission burst.

Automatic synchronization: It is also possible to let the software detect the best position for the transmission burst. Just click the Automatic Sync button and within 10 to 15 seconds the software will have determined the best burst offset position.

Once the automatic synchronization process has finished, you will be prompted to select the advised offset value, or select one of the alternative offset values that have also automatically been determined.

Figure 52 shows our system being properly synchronized with the other system transmission burst. Our transmission burst is on top of the other systems transmission burst and both our receiver and reference windows are not on top of any transmission bursts.

Figure 52: Synchronization correct

Other system(s) transmission burst(s)

Our system transmission burst

Our system receiver window

Our system reference window


8.8.7.4 Detection The Detection screen (Figure 53) shows the signal that is received by the receiver

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1-Technical Manual NEXUS AM v1.1

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