Administration and Provisioning
8-28 Issue 8.0 July 2002
STS-1 Cross-Connections 8
General 8
In Release 7 and later releases, the FT-2000 OC-48 Add/Drop-Rings Terminal has
no fixed connection, or association, between low-speed ports and the STS-1
tributaries of OC-48 high-speed lines 1E and 1W. There is also no fixed
connection between the STS-1 tributaries of OC-48 high-speed lines 1E and 1W.
The FT-2000 OC-48 Add/Drop-Rings Terminal has an STS-1 time slot assignment
(TSA) capability that supports the following STS-1 cross-connections across an
OC-48 signal:
■ 1-way cross-connections
■ 2-way cross-connections (Default)
■ 1-way-DRI cross-connections
When entering cross-connections, the source node is the node in the ring where
the low-speed signals on that STS-1 tributary originate. The destination node is
the last node in the same ring where the low-speed signals on that STS-1 tributary
terminate.
NOTE:
Concatenated signals, such as an OC-3c, must be cross-connected within
a single STS-3 tributary and cannot be broken up as STS-1 signals
distributed across 3 different STS-3 tributaries. An OC-12c concatenated
signal must be cross-connected to four contiguous STS-3 tributaries.
Non-concatenated OC-3 and OC-12 signals can be freely cross-connected.
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