Lucent Technologies FT-2000 OC-48 - Page 418

Administration and Provisioning
8-14 Issue 8.0 July 2002
1-Way Cross-Connections 8
The 1-way cross-connections are the basic building block for all
cross-connections. The FT-2000 OC-48 Add/Drop-Rings Terminal supports the
following 1-way cross-connections:
■ Add cross-connections: Add cross-connections are made from any
service low-speed interface slot to any outgoing 155 Mb/s (STS-3) tributary
of OC-48 high-speed line 1E or 1W. For example, Figure 8-1 shows service
low-speed interface slot 2B cross-connected to outgoing service STS-3
tributary 6 of OC-48 high-speed line 1W.
Figure 8-1. STS-3 1-Way Cross-Connections at an FT-2000 OC-48
Add/Drop-Rings Terminal
In Release 5 and later releases, add cross-connections are 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. A single input enters an active add cross-connection
from the "A" slot to an 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 8-2 shows service
low-speed interface slots 2A and 2B cross-connected to outgoing service
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-1 Tributaries
1A 2B 4B 8B
OC-48
1E
Low Speed Ports
OC-48
1W
6B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Through
Add
Drop
Drop