DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115 Issue 1
April 2000
Multicarrier G2 Universal Module to R8r EPN
5-78Critical Reliability
5
Disconnect Cables
1. With the cable retainer in front of you and the p art number visible (4B or
4C), locate the slot that is almost vertical . This slot is adjacent to the part
number. Insert a flat blad e screwdriver with a 1/4-inc h blade into the slot
and twist. The retainer will snap open easily. Remove the cab le.
2. Disconnect previously labeled cables associated with the carrier to be
removed.
3. Behind a “DEFINITY style” cabinet, remove the b ack doors from the
cabinet.
4. Behind a previously upg raded cab inet, remove all of the back p anels.
(Two different types of screws hold the bac k panels to the cabine t. The
#10 screws can be removed with a screwdriver or a 1/4-inch soc ket. The
#12 screws can be removed with a screwdriver or a 5/16-inch socket.)
Remove Circuit Packs from Module Control
Carriers A and B
1. To ensure that power units in the “A” and “B” carriers are properly
replaced, label each power unit with its slot number.
2. Disconnect the power c ords from the power units in the “ A” and “B”
carriers.
3. Remove all circuit packs and power units from carrier “ A.” Store the circuit
packs in the static-p roof packaging .
4. Remove all circuit packs from c arrier “B.” Store the circuit p acks in the
static-proof pac k ag ing.
5. Remove the circuit pack b lanks from slots that do not contain c ircuit
packs.
6. Remove the front trim plate from the “B” c arrier by pulling it straig ht off.
Then remove the front trim plate from the “A” c arrier.
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 DEFINITY ECS Release 8 EPN.
NOTE:
Note the position of the compo nents on the left side of the CURL.
NOTE:
Verify that the CURL meets the minimum usable vintage requirements.