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
5-84Critical Reliability
5
Install the New A and B Position Carrier s
1. Install the J58890AF Expansion Control Carrier in position “ A” by lining up
the plastic alignment tip s on the top rear of the carrier with the screw holes
in the cabinet. These alignment tip s will support the c arrier while the
screws are being replac ed. Ensure that the power cord s are properly
placed in the slots at th e sides of the carrier.
2. Fasten the carrier into position with 4 self-tap ping screws saved from the
removal of the old carrier.
!CAUTION:

Carefully realign the threads on the self-tap ping screws by t urning

them counterclockwise 1 tur n before tightening them to avoi d

stripping the threads out of the framework.

3. Behind the carrier in a “DEFINITY style” cabinet, replace the 2 screws
saved from the removal of the old c arrier.
4. Install the J58890BB-3 port carrie r in position “B” b y lining up the p lastic
alignment tips on the top rear of t he carrier with the screw holes in the
cabinet. These alignment tip s support the car rier while the screws are
being replaced . Ensure the power cords are prop erly placed in the slots at
the sides of the carrier.
5. Fasten the carrier into position with 4 self-tap ping screws saved from the
removal of the old carrier.
6. Connect the “P2” and “ P1” (large and small) conne ctors to the “A” c arrier.
Snap the connector lock into place to ensure the connec tion is properly
made. See Figure 5-25.
7. Connect the “P1” (small) conne ctor to the “B” car rier. To get enough slack
in the cables, cut the tie wrap holding the interc abinet cables f rom the
upright in the area of the carrier being installed. Snap th e connector lock
into place to ensure the connec tion is properly mad e.
8. Connect the 8 ground strap s from the “D” carrier to t he new “A” carrier.
See Figure 5-24. These straps were left connected to the “D” carrier.
9. Connect the 8 ground strap s from the “C” carrier to t he new “B” carrier.
These straps were left connected to the “C” carrier.
10. Install the 8 ground straps b etween the new “A” and “B” carriers. These
straps were removed from the old c arriers.
11. For an AC-powered expansion c ontrol carrier, install the 2 new carrie r
ground straps. One strap connects ground point “1” to the A-carrier frame
(on the right side), and the other c onnects ground p oint “8” to the A-carrier
frame (on the left side).
NOTE:
DC-powered carriers d o not use these carrier ground strap s.