Lucent Technologies DDM-2000 OC-3

363-206-285
Administration and Provisioning
Issue 3 June 2001
8-25
VT1.5 signals from function units A or B can be cross-connected to VT1.5 signals
in function unit C. The VT1.5 signals can be in any MXRVO, STS1E, or 22-type
OLIU, with the exception that MXRVO-to-MXRVO hairpins are not allowed. Also,
VT1.5 and STS-1 signals terminating on 27G2-U OC-1 OLIUs in function units
may be hairpin connected. Beginning in Release 11.0, the mixing of 0x1, pass-
through, and hairpin add/drop cross-connects is allowed. Beginning in Release
13.0, VT1.5 and STS-1 signals terminating on 26G2-U OC-1 OLIUs in function
units may be hairpin connected. The available interfaces are:
■ DS1 to EC-1/OC-3
■ EC-1 to OC-3
■ EC-1 to EC-1
■ OC-3 to OC-3.
■ OC-1 to OC-1.
Table 8-4 lists the number of available VT1.5 cross-connections including hairpin
cross-connections:
Table 8-4. DDM-2000 OC-3 Available VT1.5 Cross-Connections, Including Hairpin
Slot Main Fn-A Fn-B Fn-C
Main 84 56 56 84
Fn-A 56 0 0 56∗
Fn-B 56 0 0 56∗
Fn-C 84 56∗ 56∗ 0
∗ Hairpin cross-connections.