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Indoor Unit 9500 MXC Operation and Maintenance
Saad Amin
August 2009
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Contents1. Overview of 9500 MXC (IDU 9500 MXC, INUe)2. 9500 MXC CT Software Introduction3. Alarm Monitoring
System Summary Performance System Controls History Event Browser Parts Current Alarms Cases (Discussion)
4. 9500 MXC CT installation at LAPTOP.5.Fiber Installation at MXC/ADM.6.Practical: 9500 MXC connectivity
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Overview of 9500 MXC (IDU 9500 MXC, INUe)
These products belong to the 9500 MXC series of IDU.
1. Rack Ear and Grouding stud 2. - 48V DC3. Fuse ( 5 Ampere)4. To ODU 5. Maint. V. 246. Alarm I/O7. ODU/IDU LED8. NMS Port9. Protection Port10. Optical Port
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Installation Site of IDU in SDH Ring:
1 +1 HST; Traffic from
East
ADM; Drop Traffic of
East1+1 HST;
Takes Traffic to
West
E1 cables
Coaxial Cable 50
ohm (TO ODU)
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(INUe Intelligent Node Unit Extended)
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Description of INUe Cards• NCC ( Network Controller Card) : It provides the key node management
and carries the main power supply for -48 V DC input. It also contains the Flash card( 256 MB) which holds the management software.
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RAC ( Radio Access Card) :
It connects to ODU via 50 ohms coaxial cable. RAC sends data on to optical port.
These are two types of RAC cards: RAC 30V ( non XPIC links) RAC 40V (XPIC links)
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DAC( Digital Access Card) :
This card has optical Fiber interface. This Fiber interface sends its data to multiplexer.
DAC cards are of two types: 1. 1 X 155o DAC 2. 2X 155o DAC Fan Unit : For cooling of INUe.
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Some Installation Sites of INUe in SDH Ring:
•2-STM1 Ring Hub site
• 2 STM1 Ring Node
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9500 MXC CT Software Introduction
IDU/INUe both are monitored through same software.
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9500 MXC ---Main Page Overview
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Operation and Maintenance ---9500 MXC
Diagnostic capabilities include: System Summary Performance System Controls History Event Browser Parts Current Alarms
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System Summary
1. The System Summary screen provides a single-view snapshot of the configuration and health of a Node/Terminal.
2. Single click access is provided to related screens for configuration and diagnostics.
IDU 9500MXC
RAC
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System Summary (INUe)
1+1 HST Horizont
al1+1 HST Vertical
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Performance
For a RAC the Performance screen provides G.826 data for the selected link, plus Tx power, RSL, PA temperature, -48Vdc supply voltage at the ODU, and an estimate of current BER and remote fade margin (fade margin at the far-end Rx).
G.826 data includes: • Elapsed, available and unavailable seconds • Errored seconds and errored second ratio • Severely errored seconds, and ratio • Block error, background block errors, and ratio How to see Performance (RSL)? Diagnostics Performance
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Performance (contd..)
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System Controls•This is very important feature of 9500 MXC. Why?
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System Controls contd.
Warning will be appeared on RAC with alarm description demodulator locked.
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History
The History screens provide either a seven day, or one month graphical and report views of operational history, captured as 15 minute data bins over the most recent seven days, or daily bins over one month.
For links the screen supports G.826 data, RSL, events, and configuration changes, errors, events and configuration changes.
We have two formats of history are available: 1- Graphical view 2-Report View How to see History? Diagnostics History
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History (GRAPHICAL VIEW)
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History (GRAPHICAL VIEW) contd..
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History (Report VIEW)
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Event Browser The Events Browser screen provides a time and date-stamped view of
the most recent 5000 events, both active and cleared. Options include viewing of current alarms only, or all occurrences of a selected alarm type.
For each alarm or informational event a tab provides access to additional information. For alarms the alarm description, probable causes, and recommended actions are displayed. For information events its description is displayed.
How to see Event Browser? Diagnostics Event Browser
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Event Browser (contd..)
You can also save this alarms details by clicking on EXPORT EVENTS.
Example: abc.csv
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Event Browser Navigation
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Parts• The parts screen presents:
1. Part Number
2. Part Revision
3. Serial Number
4. Time in service
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Current Alarms
An alarms screen provides a tree-view of all alarm actions for a selected plug-in. For each alarm a tab provides access to the alarm description, probable causes, and recommended actions.
How to see current alarms? Diagnostics Alarms
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Tree structure shows current alarms on MXC:
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9500 MXC Logos
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Problem Icons
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Alarms on IDU 9500 MXC (SEEN ON SYSTEM SUMMARY)
CASE 1: In system summary, RAC is red. Alarm appears will be Errored second ratio (ESR) + Errored second + Alarm Indication
Signal. ODU LED will glow red on IDU front panel.
Probable Cause:
ODU is faulty or surge arrestor is faulty.
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Alarms on IDU 9500 MXC (SEEN ON SYSTEM SUMMARY) contd.
CASE 2:In system summary, DAC is red. Alarm appears will be Loss of Frame
(LOF) or tributary loss.Probable Cause:
DAC card is faulty or fiber is faulty.CASE 3:
In system summary, IDU icon is showing warning.IDU LED will start flashing on front panel.
Probable Cause:
IDU is synchronization with NMS server or software of main/stdby IDU is different.
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Alarms (SEEN ON EVENT BROWSER)ALARM 1:
Alarm Indication Signal (AIS) + Loss of Frame (LOF)Probable Cause:
DAC card is faulty or Fiber is unplugged or Fiber is faulty. In system summary, DAC card will be red. ALARM 2:
ESR threshold exceeded Probable Cause:
Interference, equipment malfunctioning or Path Condition If ESR threshold exceeded at local end and RSL is OK, it means that
interference at from another link.ESR ---> demodulator not locked ---> Traffic Path Down (Path Failure)--->
Path Warning (complete path fading or Remote Tx faulty i.e. ODU),
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Alarms (SEEN ON EVENT BROWSER)
ALARM 3: 10 E-3/10 E-6 threshold exceeded
Probable Cause:
Interference at both ends. In system summary RAC card will show warning alarm on both ends.
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9500 MXC CT installation at LAPTOP
1. 9500 MXC CD ROM--> Install Craft Terminal v4.00.572. Install 9500 MXC Virtual modem from 9500 MXC CD. How to
Install ?
3. Create Dial up connection which uses 9500 MXC Virtual Modem. How to create Dial up?
4. Use Maintenance cable. Connect its serial port (LAPTOP) and Ethernet port to V.24 port.
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How to install V.24 MODEM?
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Installing Dialup Connection
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Fiber Installation at IDU/INUe and ADM
1. In IDU, SC-SC to SC ( Y- FIBER) is used between IDU and ADM.2. In INUe, SC to SC (single mode FIBER) is used between INUe
and ADM.
IDU TX
IDU TX
ADM RX
Y- FIBER
ADM RX
INUe TX
Single mode FIBER
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PRACTICAL : In Field (RING 10 (1-STM1) Islamabad
Site Name: N-ISB 8042 (G-11Markaz)
Time: 2:30 PM – 5:00 PM
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Q & A
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THE END