DEFINITY Enterprise Communication Server Release 9
Installation and Maintenance for Survivable Remote EPN
555-233-121
Issue 2
November 2000
SREPN Maintenance
2-40
Replacing the TN2301 circuit pack
2
Figure 2-21.
Transceivers attached to the TN2301 circuit pack
2. Remove the bracket and then the transceivers from the old circuit pack and
replace them
in the identical positions
on the new TN2301 circuit pack.
3. Replace the bracket over the transceivers to secure them to the board.
4. Feed the fiber cables through the slot in the back of the circuit pack and
replace the fiber connections on each of the transceivers.
5. Insert the new circuit pack, feeding the fiber patch cords to the bottom pan
of the cabinet.
Figure Notes
1. Connections from PPN A (lightwave
transceiver type must match other end)
2. Connections to EPN A
3. Connections from PPN B
4. Connections to EPN B
5. Lightwave transceiver (9823A is
always in this position)
6. Fiber optic cable pairs from the rear
panel of the SRP cabinet
ckdf03fo KLC 010899
RX
TX
RX
TX
1
2
3
4
5
6
PPN
A
EPN
A
PPN
B
EPN
B