Setting Up End-To-End Synchronization - Nortel SONET AccessNode Manual

Procedure 4-3

Setting up end-to-end synchronization

Use this procedure to set up the synchronization at the remote fiber terminal
(RFT). The external synchronization interface (ESI) is installed at the fiber
central office terminal (FCOT) where the building integrated timing supply
(BITS) is located. The RFT usually depends on the FCOT for synchronization.
Only one of the network elements (NEs) in a sub-network can interface to the
external synchronization source; the other NE is then looptimed to the first.
Requirements
Before starting this procedure:
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•
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Action
Step
1
CAUTION
Risk of service loss
Set the RFT clock source to looptimed. If you do not
perform this procedure, insufficient synchronization could
affect service. This procedure must be performed even if no
external synchronization source connected at the FCOT.
Make sure the system is not in service.
Install the ESI cable as described in Bay in Central Office Installation
Manual—ABM, 323-3001-201 or Bay in Central Office Installation
Manual—TBM, 323-3001-202.
Connect a VT100-compatible user terminal to the NE.
Action
Log into the network element user interface (NEUI) at the RFT.
The Network Element Status screen appears
AccessNode Site Testing Procedures 323-3001-221 Issue 2.0
Preparing for system integration 4-9
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