Lucent Technologies FT-2000 OC-48, Руководство пользователя и обслуживания

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Administration and Provisioning
Issue 8.0 July 2002 8-11
Cross-Connections 8
Cross-Connect Rules 8
DS-3/EC-1 8
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Three DS-3 signals are addressed using port AIDs.
■
All STS-1 drop signals (DS-3) must come from the same side.
■
The STS-1 add cross-connections can go to just one side or to both sides.
OC-3 Rules 8
■
Three STS-1 signals contained within the OC-3 signal are addressed using
port AIDs (i.e., ls-1a-1, ls-1a-2, ls-1a-3).
■
All STS-1 drop cross-connections must come from the same side (line).
For example:
1e-1-1 -> 1a-1
1e-3-3 -> 1a-2
1e-8-2 -> 1a-3
■
The three consecutive STS-1 tributaries of an OC-3c signal must be
cross-connected in parallel. For example,
1a-1 -> 1w-3-1
1a-2 -> 1w-3-2
1a-3 -> 1w-3-3
■
An OC-3c signal must be aligned on an STS-3 boundary within the OC-48
signal. For example:
■
An OC-3c cross-connect can be provisioned using either single
CONFIGURATION-Enter-Crossconnection-STS-3
command or three
CONFIGURATION-Enter-Crossconnection-STS-1
commands.
NOTE:
The FT-2000 OC-48 ADR Terminal does support the pre-provisioning
of cross-connections. However, in order to prevent the generation of
LOP alarms, the OC-3c signal should not be applied until: (a) the
circuit pack has been installed; (b) ALL cross-connections for that
circuit pack have been provisioned; and (c) all cross-connections in
each NE of the signal’s path have been provisioned. Then, and only
then, should the signal be applied. Before deleting any of the
Correct Incorrect
1a-1 -> 1w-3-1 1a-1 -> 1w-3-2
1a-2 -> 1w-3-2 1a-2 -> 1w-3-3
1a-3 -> 1w-3-3 1a-3 -> 1w-4-1