363-206-285
Administration and Provisioning
8-28 Issue 3 June 2001
â– Unprotected Video Broadcast: An unprotected video broadcast source
cross-connection on a ring interface is an asymmetric bidirectional cross-
connection from a broadcast source onto an OC-N ring.
â– Locked VT: A ring (0x1) VT locked cross-connection between low-speed
and high-speed time slots, locking ring traffic onto a designated ring
rotation.
â– STS-3c: An STS-3c cross-connection is a main to FN-C two-way dual 0x1
cross-connect for OC-3 concatenated transmission.
Table 8-5. DDM-2000 OC-3 Ring Cross-Connect Types Allowable (Main to Main)
From
MAIN
To
MAIN
Circuit Pack Cross-Connect Type 22-Type 24-Type 27-Type 29-Type
22-type
Pass-Through
STS
5.1
Pass-Through
VT
5.0
24G-U
Pass-Through
STS
11.0
Pass-Through
STS-3c
11.0
Pass-Through
VT
11.0
Pass-Through
STS-3c
11.0
27-type
Pass-Through
STS
9.0
Pass-Through
VT
9.0
*29-type
Pass-Through
STS
15.0
Pass-Through
STS-3c
15.0
Pass-Through
VT
15.0
*Introduced in Release 15.0.