Power UTC 4432 en

Power UTC-4432xxMedium-power Short-distance Wireless Modules

V1.01 Data：2012-09-10

Revision History

Version Date DescriptionV1.00 2011/09/01 Create a document

V1.01 2011/09/10 First modified

Datasheet

Hangzhou NewMsg Technologies Power UTC-4432xx

Power UTC-4432xx Datasheet2/28

Contents

1 Product Description..................................................................................................................... 3

1.1 Modules Inroduction..............................................................................................................3

1.2 Functional Properties............................................................................................................. 41.2.1 Highlight Features............................................................................................................41.2.2 Basic characteristics.........................................................................................................5

1.3 Application.............................................................................................................................6

2 PIN Information............................................................................................................................ 8

2.1 PIN Assignment Chart........................................................................................................... 8

2.2 PIN Function..........................................................................................................................8

3 Technical Specifications.............................................................................................................. 10

3.1 Working Mode..................................................................................................................... 10

3.2 Normal Communication...................................................................................................... 11

3.3 Low-power Communication................................................................................................ 13

3.4 Setting Parameters............................................................................................................ 173.4.1 Parameters Setting Description......................................................................................173.4.2 Configuration Methods.................................................................................................. 20

3.5 Electrical Parameters........................................................................................................... 26

4 Mechanical Dimensions.............................................................................................................. 27

5 Others........................................................................................................................................... 28

5.1 Disclaimer............................................................................................................................ 28

5.2 Contact Way.........................................................................................................................28



1 Product Description

1.1 Modules Introduction

Power UTC-4432 series medium-power short-distance wireless communication module is

introduced by Hangzhou NewMsg Technology so as to meet the requirements of medium long

distance, strong penetrability and so on. They are wireless transparent transmission modules

with highly integrated, medium-power, half-duplex, medium long distance, strong

penetrability and anti-jamming, and on-chip integrated high performance MCU and ultra

low-power RF chip.

Medium-power module Power UTC-4432 and micro-power UTC-4432 module could

communicate with each other, and it is very suitable for medium long distance, point to

multi-point, point-to-point and the demand for ad hoc network applications. When you use

them in point to multi-point applications, the child nodes use micro-power module UTC-4432

( Wireless distances ranging from hundreds of meters to two kilometers, depending on the

actual use. ), and the relay nodes use medium-power module Power UTC-4432 ( Wireless

distances ranging from hundreds of meters to ten kilometers, depending on the actual use. ).

After the summary, through Power UTC-4432 modules transmit them to the remote receiving

terminal.

In order to improve the modules' universality, Power UTC-4432 series module could modify

the frequency, air rate, transmission power,serial baud rate, wake-up interval, delay trigger

time, local IP address, destination address, error correction coding enable, packet length,

packet integrity mode, field strength testing, carrier sense, frequency calibration, and

compensation and so on so as to satisfy the different customers' individual requirements.

For the different transmission powers, Power UTC series modules can be divided into various

types. The different series and models of Power UTC module, their hardware and software,

appearance and dimensions are exactly the same and can be compatible with each other.

Currently the models of Power UTC-4432 series modules: Power UTC-4432-T500E

( 500mW ), Power UTC-4432-T2000E ( 2W ).

The appearance and dimensions of Power UTC-4432 are shown in the following figure:



Power UTC-4432-T500 ( 62 x 40 x7mm )

Power UTC-4432-T2000 ( 62 x 40 x7mm )

1.2 Functional Properties

1.2.1 Highlight Features

RF front-end adopts HF amplification, has very high sensitivity and the ability to penetrate

walls and long transmission distance up to 10km, indoor signals can cover more than a dozen

floors (depending on the parameters settings).

Used in conjunction with micro-power module UTC-4432, greatly enhanced the radiation

distance and the ability to penetrate walls among micro-power modules, very suitable for

point to multi-point applications.

Support to modify RF and functional properties of the modules online ( user modified them

by MCU ) and locally ( use assorted PC-side of Hangzhou NewMsg Technologies to

configure software ), use more convenient and easier networking.



Support online listening RF air channel, physical layer support wireless anti-collision

protocol. Using wireless anti-collision and hardware physical mechanism, effectively solving

the co-channel interference problems of the surrounding systems, this could be a reliable

communication, further reduces power consumption and extend the life of the node.

Bulk data buffers, supports a maximum of 256-byte length data packets at a time.

FEC forward error correction mechanism, use the method of transmission of redundant

information, when an error occurs in the transmission, allows the receiver to build data,

greatly improving wireless communication anti-jamming capability.

Anti-collision mechanism description: Usually the terminal code is in power saving mode (mode

3), base station is in wake-up mode (mode 2), base station send wake data packet which contains

specified terminal node hardware address, after corresponding node is wake, can switch it to

normal transceiver data mode (mode 1) by user MCU. Terminal node listens to the air RF channel

to make sure whether there is carrier (need to open carrier sense) before send data. If there is

carrier, delay a random time and listen to air carrier again until there isn't carrier, and then send

data to the base station, without affecting the other hardware address corresponding node.

1.3 Basic characteristics

2.1~3.6V and 4.8~5.2V two-channel simultaneous power supply

UART interface（TTL level）

Visual transmission distance 10km（air rate 1kbps）

FSK modulation, Efficient error correction coding, Strong anti-interference ability

RF parameters such as frequency, air speed, the transmission power modifiable

Serial port parameters such as baud rate and parity type modifiable

Local IP address and destination address could be modified, support multiple points star

network

Packet length modifiable

Support package complete transmission mode

Wake-up interval, delay trigger time modifiable

-40℃~+85℃,0℃~70℃, optional



62 x 40 x 7mm

Standard 2.54mm DIP spacing

Package size, interface level, power supply, etc., and other outstanding features, can be

customized as appropriate.

1.4 Application

Power UTC-4432 module RF front-end adopts HF amplification, transmission power up to

500mW and 2W. While maintaining high receiver sensitivity, the module greatly improves its

ability to penetrate walls and transmission distance. When its air transmission rate is 1kbps,

receiver sensitivity to -121dBm, transmission distance up to 10km and indoor signals can cove

more than a dozen floors ( depending on the actual use ). Particularly suitable for the demanding

environment which could meet medium long distance, penetrating ability, strong anti-interference

and so on.

Power UTC-4432 modules are widely used in following industries:

Automatic meter reading

Wireless sensor network

Home automation

Security alarm

Intelligent instrument

Intelligent lighting control

POS systems, asset management

Wireless weighing

Wireless storage, logistics management

Automated data acquisition

Industrial remote control, telemetry, remote sensing and mapping

Highways, railway data transmission

Heat supply network, gas network, water supply monitoring and automation



Electric power distribution monitoring, power load monitoring

Contact less access

Wireless data logger



2 PIN Information

Power UTC-4432 module has 19 pins, the 7 pins on the left are compatible with the pins of

UTC-4432, pins on both sides are advanced feature pins ( not yet opened, vacant when use them )

and HF amplifier circuit power supply pins, described as follows:

2.1 PINAssignment Chart

2.2 PIN Functions

PIN Name Function Description

1 GND - Ground

2 3V3 - Power supply 2.1V~3.6V

3 SET_A Input Used to select the module’s work mode

4 RXD Input UART input, TTL level

5 TXD Output UART output, TTL level

6 AUX Output Used to indicate the module’s work status

7 SET_B Input Used to select the module’s work mode

8 TXE Input Sending enable pin ( not yet open this function, suspended )

9 AM Output Address match ( not yet open this function, suspended )

10 5VT - Power supply 4.8 –5.2V, used in amplifying circuit

11 5VT - Power supply 4.8 –5.2V, used in amplifying circuit

12 GND - Ground

13 GND - Ground

14 GND - Ground



15 GND - Ground

16 5VR - Power supply 4.8 –5.2V, used in amplifying circuit

17 5VR - Power supply 4.8 –5.2V, used in amplifying circuit

18 DR Output Send and receive data ready ( not yet open this function, suspended )

19 CD Output Carrier sense ( not yet open this function, suspended )

When module connects with user MCU, SET_A and SET_B pins respectively connect to the two

GPIO ports of MCU, RXD and TXD two pins of the module connect to TX and RX two pins of

the MCU serial port, AUX pin connects to the external interrupt pin of MCU ( AUX not required,

if not using, maintain vacant ), other unused advanced feature pins are suspended, 3.3V and 5V

simultaneous power supply. Connection diagram is as follows:



3 Technical Specifications

3.1 Working Mode

Power UTC-4432, a total of 4 working modes, use SET_A and SET_B two pins to set, 4 modes

are interchangeable.

Working

Mode

PIN

Configuration

Description

Normal mode

(mode 1)

SET_A=0

SET_B=0

Serial UART opened, module continued in receiving state. When UART is

written data to be sent, set AUX low and switch to sending state, and send the

data. After the end of data sent, reset AUX pin high and turn to continued

receiving state.

Module sends data in this mode, without sending a long preamble, so

requires the receiver must in mode 1 or mode 2, which is continued receiving

state.

The module, after receiving data from the air RF channel, when through

CRC check and confirm that the data is correct, set AUX low and immediately

output data from the serial port. Set AUX high after the end of the data output.

Wake-up mode

(mode 2: active

wake)

SET_A=0

SET_B=1

Serial UART opened, module continued in receiving state. When UART is

written data to be sent, set AUX low and switch to sending state, and send the

data. Send a special wake packet whose preamble length is a wake-up cycle

(such as 1s), and after the end of data sent, reset AUX pin high and turn to

continued receiving state.

Module sends data in this mode, because the data sent has a long preamble,

the receiver can receive the data in mode 1, mode 2, or mode 3.

The module, after receiving data from current channel, when through CRC

check and confirm that the data is correct, set AUX low and immediately output

data from the serial port. Reset AUX high after the end of the data output.

Power saving

mode

(mode 3: passive

wake )

SET_A=1

SET_B=0

Serial UART closed. A wake-up cycle (such as 1s) later, RF receiver

opened and search channel for preamble. If not found, then immediately goes

into dormancy state, waiting for the next wake-up cycle to wake up again. If

monitored a preamble,continued to stay in receiving state to wait for the

synchronization code and receives it. When through CRC check and confirm that

the data is correct, set AUX low to wake the lower computer, then open the serial

port and output data.

After the end of serial output, close the serial port and reset AUX high. If

the mode setting isn't changed, goes into dormancy state to wait for the next

wake-up cycle.



Sleep mode

(mode 4:

configuration

mode)

SET_A=1

SET_B=1

In this state, the RF circuit of module, CPU clock and peripherals will be

closed, power consumption of about 1.5uA. This mode is primarily used to

configure their parameter settings and close the module when it doesn't need to

send and receive data. When you configure the module parameters, UTC module

serial port fixed to 9600bps, 8 data bits, 1 stop bit and no parity. Switch to the

other 3 modules for users to set values.

When the module works in mode 2, can send and receive wireless data.. In mode 3, can receive

wireless data, but couldn't send data, and if need to send data, it should be switched to mode 1.

When the sending terminal works in mode 1, the receiving terminal must work in mode 1 or mode

2.

3.2 Normal Communication

When the module in normal mode (mode 1), two-way communication between modules. At the

same time, modules listening to the serial port and air RF channel. So the modules can be used as

both transmitter and receiver.

The process of sender and receiver as follows:

Sending terminal processing（SET_A PIN low，SET_B PIN low）

When listening to the serial port data input, set AUX pin low and switch to wireless

transmitter state, interwoven error correction coding of the data received on the serial port,

and then sent over the RF channels. Reset AUX pin high and again transferred to

continuously listening state after the end of transmission.

Receiving terminal processing（SET_A PIN low，SET_B PIN low）

After receiving data from the air RF channel, through interwoven error correction decoding

and error detection to confirm that the data received is correct, set AUX pin low and

immediately output the decoded data from the serial port. Reset AUX pin high and again

transferred to continuously listening state after the end of transmission.

Description the process of the two modules in detail ,when they are working in normal mode,

as follows:

1. Through external MCU GPIO ports configure SET_A and SET_B two pins as a low level so

that both modules are in the normal state (mode 1). Or SET_A and SET_B pins of each

module could be connected to the GND directly (can reduce take up MCU 2 IO ports).



This mode, the module allows for half-duplex communications, both as a sender and a

receiver. RF parameters of sending and receiving terminal of the module must be configured

the same, it could communicate when the transceiver destination address match.

2. When the sender module listens to serial data input, set AUX pin low and automatically

switch to wireless transmitter state, and then send serial data over the air RF channel that you

just received. Reset AUX pin high and again transferred to continuously listening after the end

of transmission, always ready to receive other data information.

3. Receiver module listens to the air carrier, receive data given by the transmitter module from

air RF channel. After CRC check and confirm the received data is correct, set AUX pin low

and immediately output the decoded data from the serial port. After all the data from the

UART output, reset AUX pin high and again transferred to continuously listening state.

If the receiving module needs to send data, only need external MCU transmit data to others

through UART interface and the module will transmit automatically.

Module workflow described as follows:



3.3 Low-power Communication

When the module is in low-power receiving mode, the receiving module through the timing of

sleep and listens to air RF channels to achieve the purpose of low power. And the transmitter

module communicates with the receiver module by sending a special RF packet.

The process of sender and receiver as follows:

Sending terminal : SET_A PIN low level，SET_B PIN high level

When listening to the serial port data input, set AUX pin low and switch to wireless

transmitter state, interwoven error correction coding of the data received on the serial port,



and build a special data packet whose preamble length is a wakeup period, then sent over the

RF channels. Reset AUX pin high and again transferred to continuously listening state after

the end of transmission.

Receiving terminal : SET_A PIN high level, SET_B PIN low level

After initializing the RF part of the module, it goes into the state of dormancy. After a

wake-up period (such as 1 second), the RF part in the receiving state and searching for the air

RF channels whether there is a preamble. If there is no search, then immediately goes into the

state of dormancy to wait for the next wake-up period and then search again. If found,

continue to keep in the receiving state, receive the remaining portion of the data packet. And

then through interwoven error correction decoding and error detection to confirm that the

data is correct, set AUX pin low and output the decoded data from the serial port after

waiting for a delay trigger time. Reset AUX pin high after the end of transmission.If the

working status does not change, goes into the state of dormancy again to wait for the next

wake-up period.

If the receiving terminal need to return data to the sending terminal, by changing the working

state of the receiving terminal, set SET_A pin and SET_B pin to low levels. Communicating

by the way of normal communication mode at this time.

Low-power communication diagram as shown in the following figure:



Note：Tw: Preamble search duration Tp: Wake up interval

Td: Delay trigger time (Tp and Td configurable)

Low-power communication, assuming that the receiver set the wake-up interval to 1s(Tp), the

receiver wakes up every 1 second to search preamble, the duration is 32bit wireless air

transmission time (Tw). Each time before the sender sending the data, sends the preamble more

than 1s("1010" alternative code), then the synchronous code and user data. This way, we could

guarantee that the receiver will be able to search the preamble as long as data sent out at the sender

terminal,, thus switch to the receiving state to receive synchronization codes and user data later.

Sending terminal continue to write several bytes data to be sent to the serial port, if no subsequent

bytes are written within 2 bytes serial transmission time,send a packet of data is considered to be

written. This moment, the module's internal package the data which serial has received (add

packet length and CRC check,etc), set AUX pin low after the end of the processing and start RF, to

launch. First, RF continue to send additional preamble for Tp s ("1010" alternative code), and

followed by 4-byte preamble, then the synchronization filed (SYNC), and finally the user data is

packaged before. Set AUX pin high after the end of RF transmission.

The receiver is in power saving mode (mode 3) and its RF is in standby state. Every Tp time, the

module switch its RF to receiving state in order to search for the air RF channels whether there is a

preamble(polling).Continuing Tw time ,if still has not discovered the preamble, indicate that the

air doesn't have a wireless data transmission, and then the RF switches back to standby. If there

has found the preamble, the RF will be continued in the receiving state to receive synchronous

word and user data.The module unpack the data received and set AUX pin low after CRC check

has passed. After delay Td time, output the user data received through serial port of the module,

and set AUX pin high after the end of serial output.

Description the process of the two modules in detail ,when they are working in Low-power

mode, as follows:

1. Users through external MCU GPIO ports configure SET_A and SET_B two pins of the

sending terminal module, set SET_A as a low level and SET_B as a high level to make it

works in awake mode (mode 2). While configure the two pins of the receiving terminal

module, set SET_A as a high level and SET_B as a low level to make it works in power

saving mode (mode 3).

RF parameters of sending and receiving terminal of the module must be configured the same,

it could communicate when the transceiver destination address match.

2. When the sender module listens to serial data input, set AUX pin low and switch to wireless



transmitter state, Error correction coding of the data received on the serial port and build a

special data packet whose preamble length is a wakeup period, then sent over the air RF

channels. Reset AUX pin high and again transferred to listening serial state after the end of

transmission. Its workflow described as follows:

3. After initializing the RF part of the module, it goes into the state of dormancy. After a

wake-up period (such as 1 second), the RF part in the receiving state and searching for the air

RF channels whether there is a preamble. If there is no search, then immediately goes into the

state of dormancy to wait for the next wake-up period and then search again. If found,

continue to keep in the receiving state, receive the remaining portion of the data packet. And

then through interwoven error correction decoding and error detection to confirm that the

data is correct. Set AUX pin low and turn on serial port functionality, output the decoded dta

from the serial port. Reset AUX pin high after the end of transmission. If the working status

does not change, goes into the state of dormancy again to wait for the next wake-up period.

Its workflow described as follows:



3.4 Setting Parameters

3.4.1 Parameters Setting Description

Power UTC-4432 is quite flexible to use , according to users' needs, support to modify RF and

functional properties of the modules online ( user modified them by MCU ) and locally ( use

assorted PC-side of Hangzhou NewMsg Technologies to configure software ).

Only work in configuration mode (mode 4) could we configure the RF and functional properties of

the modules. Configuration mode, the Power UTC-4432 series module serial port parameters are

fixed to 9600bps, 8 data bits, 1 stop bit, no parity. When switching from configuration mode to the

other 3 modes, you can maintain configuration and enter into force.

The RF and functional properties of modules mainly include operating frequency, air rate,



transmission power, UART baud rate, wake-up interval, delay trigger time, local IP address,

destination address, error correction coding enable, packet length, packet integrity mode, field

strength testing, carrier sense, frequency calibration,and compensation, and so on.

RF Frequency: Set the frequency between 430-450MHz and the step is 1KHz. Recommend

100KHz as the base unit, for example, 433.92Mhz, 434.02Mhz, 434.12Mhz.

In order to make the signals between modules which work in different frequency without mutualinterference, recommended frequency interval difference of more than 1MHz to reduce co-channelinterference.

RFAir Rate: 1kbps、2kbps、5kbps、10kbps、20kbps、40kbps optional, wireless air baud rate

lower, the time to transmit the same data longer, but the distance farther.

RF Transmitter Power: The transmitting power of Power UTC-4432 medium-power module

cannot be configured and the default value is the maximum transmitting power. Power

UTC-4432-T500E: 27dBm, Power UTC-4432-T2000E: 33dBm.

Serial Baud Rate: 300bps、600bps、1200bps、2400bps、4800bps、9600bps、19200bps、

38400bps、57600bps optional, the communication speed between MCU and wireless module. If

the air rate lower than the serial port baud rate, require a delay after sending and receiving data.

Serial Port Parity: Default no parity, special serial protocol use parity.

Wake-up Interval (Tp): 50ms、100ms、200ms、400ms、600ms、1.0s、1.5s、2.0s、2.5s、3.0s、

4.0s、5.0s optional, default 1s. When modules stay in power saving mode (mode 3), every Tp time,

the RF enter into the receiving state to detect data and preamble. If has received the preamble,

continue to receive until a packet of data is received and then put the RF switches back to standby.

If doesn't search the preamble last up to Tw time, RF switches to standby, and loops. Valid only in

power saving mode. The longer the wake time, the lower the average power consumption. Of

course, all the node module parameters are set the same, you can make sure that you can receive

every time.

This feature only valid in mode 2 and mode 3.

Delay Trigger Time (Td): 0~999ms optional, generally recommended 5ms. When modules stay

in power saving mode (mode 3), set AUX low before wireless modules begin to output the data

received to the serial port and delay Td (that is trigger time). And then through the serial port

output data. This prevents the wireless module serial output data loss when the MCU is in sleep

state.

This feature only valid in mode 3.



Error Correction Coding Enable: On-chip integrated MCU software sets the forward error

correction to improve anti-jamming ability of the module, and to some extent also improves

communication distance. When select the error correction coding feature, underlying data traffic is

1 time without error correction, so cancel the error correction coding can also improve the speed

of communication.

Local IPAddress: Wireless module’s hardware address. After the address mode is enabled, the

module will receive the address field in the packet and compared with the module’s local IP

address. If the two are inconsistent discard the packet.

Destination Address: Address of the wireless module which need to establish communication

with the other.

If you need two-way communication, it can be set as follows:

The destination address of wireless module A set to the local IP address of wireless module B.

The destination address of wireless module B set to the local IP address of wireless module A.

If you need to broadcast communication, only requires the following settings:

Only need to set the local IP address of every receiving slave node to the same to the destination

address of sending master node.

It can also be achieved by setting the broadcast address, that the destination address of sending

master node is set to 0x00 or 0xFF. At this time, no matter what are the values of the destination

address of all receiving slave nodes, they are able to receive the data sent by sending master node.

Packet Length Setting: Factory default of 32 bytes. If set to 8 bytes, then received 8 bytes from

the serial port on the wireless module will immediately start the wireless to sent them out. If less

than 8 bytes, starting with the last byte received timing and if within 2 bytes serial transmission

time, still no longer receive data, packet the data less than 8 bytes received from serial port and

send them out. Users can combine their actual application needs, flexible setting and you can

make the communication more compact.

For example, when sending 3 bytes, recommended packet length set to 4 bytes .And when sending

20 bytes, it recommended that to set to 32 bytes.

Packet Integrity Mode: If enable packet integrity mode, then when the receiver has received

wireless packet, will determine whether the packet is complete. Thus when the receiver module

send data to serial port, tries to keep the serial byte stream continuous. For example, set the packet

length to 32 bytes, the sending terminal module received 33 bytes from serial port and send them



out. After receiving module received 32+1 bytes, if module B does enable packet integrity mode,

module B will continuously send the 33 bytes through a serial port. If module B does not enable

packet integrity mode, module B may send a continuous stream of 32 bytes, after a pause, then

send the final 1 byte (relation with air baud rate and serial baud rate). Of course, if receive buffer

(256 bytes) to be filled, buffer left a data space which just enough to receive a complete packet,

you can only enable serial output data directly.

Carrier Sense: If enable the carrier sense, before wireless module send the packets, it will

detect whether the wireless air RF channel is idle. If the channel is idle, it will immediately send

out the packets to be sent via a wireless. Otherwise the RF channel is busy and it shows that there

are other modules with the same frequency are sending data in the air. At this time, the module

delay for some random length and detect whether the channel is idle again, it will send out the data

until the channel is idle. To a certain extent, the function of carrier sense could avoid data

collisions and provide reliability for achievement simplest networking application.

Field Strength Testing: Reservation

Frequency Calibration: Reservation

Compensation enable: Reservation

3.4.2 Configuration Methods

Set SET_A and SET_B to high levels, the module enter into configuration mode (mode 4), when

switch configuration mode to the other 3 modes, it can keep the configuration and enter into force.

3.4.2.1 Locally Modified (use assorted PC-side of Hangzhou NewMsg Technologies to

configure software)

1. Because the serial port of Power UTC-4432 series modules are TTL level, when it is

connected with the PC, interface-level needs to be done. Recommended use the USB to TTL

level serial switching module CP2102 which supplied by Hangzhou NewMsg Technologies

and connected as follows:



2. Install CP2102 drivers.

3. Double-click the configuration tool, enter the following configuration interface and configure

relevant parameters as needed.

CP2102 and the detailed use rules of configuration software, please refer to the document《CP2012 use guide》

3.4.2.2 Modified online (users modify them by MCU)

It is also through UART/TTL port of the module (RXD,TXD PIN) to complete online software

settings, and timing diagram as follows:



The processing of parameters configuration as follows:

1. Module power on, 10ms (T1) later, the module enter into working state (mode 1, 2, or 3).

2. When set them, configure SET_A and SET_B pins as high levels, the module enter into

configuration mode (mode 4) and monitor AUX pin. About 10us (T2) later, you can make

parameters settings.

3. When serial input port (RXD PIN) receives settings command, can re-awaken the module. If

the settings command are correct, answer the response command.

4. Since then the module reset automatically and reinitialize (except for dynamic parameters

configuration), and 20ms (T4) later, module parameter settings are completed and take effect.

If the input setting command is incorrect, the module will not make any response, but still can

cause a reset and reinitialize. Therefore, users can take advantage of this feature, reset the module

after a long sleep or when you need to restart the module.

Power UTC-4432 series modules' parameter settings use HEX code, the baud rate is 9600bps,

invalid inspection and two kinds of setting command. Their formats as follows:



Read Command: 0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8B,0x00,0x0E.

Response: 0x24,0x24,0x24,0x00,0x0E + Freq. + Air Rate + Power + Serial Port Rate +

Serial Port Parity + Wake-up Interval + Delay Trigger Time + Functional Bit 1 + Local IP

Address + Destination Address + Packet Length + Functional Bit 2.

Write Command: 0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8C,0x00,0x0E + Freq. + Air Rate +

Power + Serial Port Rate + Serial Port Parity + Wake-up Interval + Delay Trigger Time +

Functional Bit 1 + Local IP Address + Destination Address + Packet Length + Functional Bit

2.

Response: 0x24,0x24,0x24,0x00,0x0E + Freq. + Air Rate + Power + Serial Port Rate + Serial

Port Parity + Wake-up Interval + Delay Trigger Time + Functional Bit 1 + Local IP Address +

Destination Address + Packet Length + Functional Bit 2.

Use hex to configurate parameters of the module, as follows:

Parameters Address Description

Freq. 0x00~0x02Unit: KHz

For example, 433.920MHzexpressed as 0x06,0x9F,0x00.

Air Rate 0x031K,2K,5K,10K,20K,40Kbps. Respectively, expressed as:

0x00,0x01,0x02,0x03,0x04,0x05.

Power 0x04The default value is 0x07 ( It is invalid to modify this parameter. ),

corresponds to the maximum transmission power.

Serial Port Rate 0x051200,2400,4800,9600,19200,38400,57600

Respectively, expressed as: 0x00,0x01,0x02,0x03,0x04,0x05,0x06.

Serial Port Parity 0x06 0x00: NO Parity, 0x01: Odd Parity, 0x02: Even Parity.

Wake-up interval 0x0750ms,100ms,200ms,400ms,600ms,1s,1.5s,2s,2.5s,3s,4s,5s.

Respectively, expressed as: 0x00 ~ 0x0B.

Delay Trigger

Time

0x08 0x00-0xFF, unit: ms That is, when the wireless in mode 3, how long

after the wake time to send data from serial port.

Functional 1 0x09 [7:1]：Reservation

[0]：FEC (Error Correction Coding) enable bit

Local IPAddress 0x0A Module address

Destination

Address

0x0B Module sends data to this address

Packet Length0x0C

2，4，8，16，32，64. Respectively, expressed as:

0x01，0x02，0x03，0x04，0x05，0x06



Functional 2 0x0D

[7:3]：Reservation

[0]：Packet Integrity Mode

[1]：Field Strength Testing

[2]：Carrier Sense

Through an instance to note the processing and method of the specific parameters

configuration, as follows:

For example, the module is set to: 433.92MHz, 10Kbps air rate, max power, serial port speed

9600bps, no parity, wake-up time 1s, delay trigger time 5ms, FEC enable, local IP address 0x01,

destination address 0x03, packet length 32 bytes, open packet integrity mode, close filed strength

testing and open carrier sense.

Write setting：

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8C,0x00,0x0E,0x06,0x9F,0x00,0x03,0x07,0x03,0x00,0x05,

0x05,0x01,0x01,0x03,0x05,0x05

Response：

0x24,0x24,0x24,0x00,0x0E,0x06,0x9F,0x00,0x03,0x07,0x03,0x00,0x05,0x05,0x01,0x01,0x03,0x

05,0x05

Configure the specified bytes:

Write Command: 0xFF,0x56,0xAE,0x35,0xA9,0x55, 0x8C + (1 byte starting address) + (1 byte

parameter length, the length is same to the bytes of parameters) + (parameters).

Read Command: 0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8B + (1 byte starting address) + (1 byte

parameter length).

Both of the response are same: 0x24,0x24,0x24 + (1 byte starting address) + (1 byte parameter

length) + (Power UTC-4432 module current parameters).

Both write setting and read setting are byte operation, if you want to modify one bit of the

function bit, need to set it together with the other bits. For example:

Only configurate destination address:

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8C,0x0B,0x01+ (1 byte destination address).

Return: 0x24,0x24,0x24,0x0B,0x01+ (1 byte destination address which was configured).

Close packet integrity mode, open field strength testing and close carrier sense:

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8C,0x0D,0x01,0x02。



Return: 0x24,0x24,0x24,0x0D,0x01,0x02。

Only configurate frequency:

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8C,0x00,0x03+ ( 3 bytes frequency parameter).

Return: 0x24,0x24,0x24,0x00,0x03+ ( 3 bytes frequency parameter).

Parameter dynamic configuration command

After the above parameter configuration command writes, the configuration which was modified

is save in EEPROM of the module MCU. And reset the module, modified configuration remains

valid, unless you reconfigure it.

Dynamic configuration commands of the following only save the modified configuration in

memory, don't modify the original configuration in EEPROM. Modified configuration only valid

until the next rest, and back to the original configuration after reset. Dynamic configuration does

not cause reset of the module and the time to configurate is short.

Frequency Dynamic Configuration：

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x9F,0x00,0x03+ ( 3 bytes frequency parameter).

Return: 0x24,0x24,0x24 + ( 3 bytes frequency parameter).

Destination Address Dynamic Configuration：

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8E,0x00,0x01+ ( 1 byte destination address which was

configured)

Return: 0x24,0x24,0x24 + (1 byte destination address which was configured)

Local IPAddress Dynamic Configuration

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x8F,0x00,0x01+ (1 byte local IP address which was

configured)

Return: 0x24,0x24,0x24 + (1 byte local IP address which was configured)

Software Reset

If need to reset, in parameter configuration mode ,you can enter the following command to reset .

0xFF,0x56,0xAE,0x35,0xA9,0x55,0x01.

Factory default configuration parameters: 433.92MHz, 1Kbps air rate, transmission power is



maximum (Power UTC-4432-T500E: +27dBm, Power UTC-4432-T2000E: +33dBm), serial port

rate 9600bps, no parity, wake time 1s, delay trigger time 5ms, no error correction coding, local IP

address 58, destination address 58, packet length 32 bytes, open packet integrity mode, close field

strength testing and carrier sense.

3.5 Electrical Parameters

Parameters Value UnitSupply Voltage 2.1~ 3.6 and 4.8~5.2 V

Temperature 0 ~ +70 (Commercial) / -40 ~ +85 (Industrial) ℃

Humidity 10%～90% -

Frequency 430～450 MHz

Power +27 dBm

Air rate 1K，2K，5K，10K，20K，40K bps

Transmit current mA

Receive current mA

Sleep current uA

Sensitivity -121dBm @1Kbps dBm

UART baud rate 1200/2400/4800/9600/19200/38400/57600 bps

Max packet length 256 bytes

Cycles 300k cycles

So beyond the values listed above may cause permanent equipment failure, prolonged exposure to

absolute maximum ratings may affect device reliability.



4 Mechanical Dimensions

Power UTC-4432 ( unit: mm )



5 Others

5.1 Disclaimer

Newmsg Technologies Co., Ltd reserves the right to make corrections, modifications,improvements and other changes to its products and services at any time and to discontinue anyproduct or service without notice. Customers are expected to visit websites for getting newestproduct information before placing orders.

These products are not designed for use in life support appliances, devices or other products wheremalfunction of these products might result in personal injury. Customers using these products insuch applications do so at their own risk and agree to fully indemnify Newmsg Technologies forany damages resulting from improper use.

5.2 Contact Way

Hangzhou Newmsg Technologies Co., Ltd

Tel: 0571-56019680

Fax: 0571-86576692

Contact: Weiwei Xia 18016389890 [email protected]

Yuwei Liu 18958146644 [email protected]

Web：www.newmsg.comAddr：Room 1302, Unit 1, Building 5, Dream Bay, HEDA, Hangzhou City, Zhejiang Province,P.R.China

mailto:[email protected]

mailto:[email protected]

http://www.newmsg.com

Date post:	25-Dec-2015
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