Tuesday, July 15, 2014

FIBCOM System in the Tx Network

Fibcom India Ltd. is the pioneer in design and manufacture of optical networking equipment and management systems in technical collaboration with Tellabs Denmark A/S. It is India's first company to set up local manufacturing and development facilities for latest SDH & DWDM fibre optic based products and Network Management solutions, propelling the broadband and convergence revolution in the country. FIBCOM has attained its dominant position for its SDH products in BSNL nation wide backbone network , MTNL metro networks in Delhi & Mumbai , VSNL, Indian Railways and also in other utility agencies like Oil and Gas. FIBCOM's high capacity optical telecom solutions are based on technology that provides switching, routing, grooming and restoration SDA and using DWDM products up to 10 Gbps and 32 channels or more.

The AC1 and AC4 are their product families (A – Add drop, C – Cross connect).The AC1 product family consists of STM–1 and STM–4 equipments, where as the AC4 type of equipments has STM–4 and STM–16 equipments. In the AC1 family ADM (Add–drop multiplexer) and TM (Terminal Multiplexer) along with the necessary cross connect functions are implemented in a single module. The same unit also incorporates sufficient dropping capacity, which is upgradable, to make a cost effective solution for small capacity networks. The system has protection facility and utilizes the inherent management capacities of SDH with a ‘Craft Terminal’ (nothing but a PC) or through a fully fledged Network Management System.



 
Open the 'NM 2100 Craft Terminal' software installed in the PC (the PC to OEO card (15th card) should be connected through the cable)
Local NE Access:
Click on the icon for local NE access and just give OK (for local system access no need of the NE address).
Below image shows the card details of the system. The ADM4 OEO card is the main card and also contains 21 E1s.
 
Remote NE Access:
Click on the icon for Remote NE access and enter the NE address.


 
Click on 'Configuration' menu, here NE identification will show the System details.




 
Connections
Click on 'Configuration' > connections for cross connection.



The following image shows the cross connections. Here, the TM1 is used and other TMs are pass through. 63 E1s are dropped here. KLM values vary from 1-1-1 to 3-7-3. We can easily add and delete the connections by right click and select the corresponding commands.


Clock settings / Synchronisations
select the 'synchronisation' command from 'configuration' menu
Click on SDH and do the proper settings and apply.


 
Click on Selector A and Selector B for view and change the System clock settings. Selector C for external clock details

 

Local loop/ Remote loop
Click on 'Configuration' menu and give 'Termination points' command. Select 2MBit/s
 








Select the stream which you need to give loop. The details will be displayed on the right side.

Select 'line' for local loop, 'Terminal' for remote loop and 'off' for making normal.
 
Alarm Details
Click on Fault menu >> Alarm log will display the alarms and current problem list will display the current alarm details.
For checking Power / Temperature etc.
Click on 'Performance Monitoring' , Select the Optical scan
 
Expand the ports 1 and 2. Double on the Tx and Rx power level from left side to right side. Click on View data tab and Refresh







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