Administration and Provisioning
8-30 Issue 8.0 July 2002
Add cross-connections are also made from any service low-speed
interface slot and the companion low-speed interface slot (for example, 2A
and 2B) when the slot pair is provisioned for the OC-3 1+1 protected mode.
(Any low-speed port associated with the slot pair may be specified when
entering the cross-connection.) A single input enters an active add
cross-connection from the "A" slot to the outgoing STS-3 tributary of OC-48
high-speed line 1E or 1W and a standby cross-connection from the "B" slot
to the same outgoing STS-3 tributary. For example, Figure 8-9 shows
service low-speed interface slots 2A and 2B cross-connected to outgoing
service STS-3 tributary 6 of OC-48 high-speed line 1W. The add
cross-connection from slot 2A to outgoing service STS-3 tributary 6 is
active, and the add cross-connection from slot 2B to the same STS-3
tributary is standby.
Figure 8-9. 1-Way Cross-Connections at an FT-2000 OC-48
Add/Drop-Rings Terminal (1+1 Protected Slots)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
FT-2000 OC-48 Add/Drop-Rings Terminal
STS-3 Tributaries
1A 2B 8B
OC-48
1E
Low Speed Interface Slots
OC-48
1W
6B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Add
Drop
2A 6A
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