Remove Module Control Carrier(s)
Issue 7 November 2003
5-71
555-233-115
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 EPN.
NOTE:
Note the position of the components on the left side of the CURL.
NOTE:
Verify that the CURL meets the minimum usable vintage requirements.
Remove Module Control Carriers A and B
1. Remove the TDM/LAN cable from between the “A” and “B” carriers. See
. This cable will be reused.
2. Disconnect 1 end of the TDM/LAN cable (between the “A” and “D” carriers)
from the “A” carrier. Leave the other end connected to the “D” carrier, and
move the cable into a position so that it will not interfere with removing the
“A” carrier.
NOTE:
Note the position of the TDM/LAN cable before disconnecting.
3. Disconnect 1 end of the TDM/LAN cable (between the “B” and “C” carriers)
from the “B” carrier. Leave the other end connected to the “C” carrier, and
move the cable into a position so that it will not interfere with removing the
“B” 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.
4. Remove and retain the 8 ground straps from between the “A” and “B”
5. Disconnect 1 end of the 8 ground straps from between the “A” and “D”
carriers. These straps will reconnect to the new “A” carrier.
6. Disconnect 1 end of the 8 ground straps from between the “B” and “C”
carriers. These straps will reconnect to the new “B” carrier.
7. Disconnect the “P1” (small 9-pin) connector and the “P2” (large 38-pin)
connector from the “A” carrier. See
. Move the cables into a
position where they will not interfere with removing the carrier.
8. Slide the latch up, and disconnect the “P1” (small 9-pin) connector from the
“B” carrier. Move the cable into a position where it will not interfere with
removing the carrier.