Remove Module Control Carrier(s)
Issue 7 November 2003
5-45
555-233-115
Remove Circuit Packs from Module Control
Carrier A
1. To ensure that power units in the “A” carrier are properly replaced, label
each power unit with its slot number.
2. Disconnect the power cords from the power units in the “A” carrier.
3. Remove all circuit packs and power units from carrier “A.” Store the circuit
packs in the static-proof packaging.
4. Remove the circuit pack blanks from the empty slots.
5. Remove the front trim plate from the “A” carrier by pulling it straight off.
Remove CURL from Module Control Carrier A
Remove the CFY1 current limiter (CURL) from the pin-field block marked “CURL”
on the “A” carrier. The CURL will be reused in the new EPN.
NOTE:
Verify that the CURL meets the minimum usable vintage requirements.
Remove Module Control Carrier A
NOTE:
Note the position of each TDM/LAN cables before disconnecting.
1. Disconnect both TDM/LAN cables from the “A” carrier. See
Leave the other end connected to the “C” carrier.
!
CAUTION:
When removing the TDM/LAN cables from a previously upgraded
carrier, be careful that none of the short pieces of shrink tubing come
off the 4 corner pins of the pin-field block. Otherwise, when the new
equipment is connected, -48 volts could short to ground.
2. On port carrier J58890BB-1, connect the TDM cable or TDM terminator to
Slot 02. On port carriers J58890BB-2 and J58890BB-3, connect the TDM
cables to Slot 01.