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DEFINITY Enterprise Communications Server Release 8.2
Upgrades and Additions for R8r
555-233-115
Issue 1
April 2000
Adding or Removing Cabinet Hardware
6-114Add a Switch Node Carrier (High or Critical Reliability)
6
Install New Switch Node Carrier D
1. Install the J58890SA switch node carrier in position “D” by lining up the
plastic alignment tips on the top rear of the carrier with the screw holes in
the cabinet. These alignment tips will support the carrier while the screws
are being replaced. Ensure that the power cords are properly placed in
the slots at the sides of the carrier.
2. Fasten the carrier into position with 4 self-tapping screws saved from the
removal of the old carrier.
!
CAUTION:
Carefully realign the threads on the self-tapping screws by turning
them clockwise 1 turn before tightening them to avoid 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 carrier.
4. Connect the “P1” (small) connector to the “D” carrier. If necessary, to get
enough slack in the cables, cut the tie wrap holding the intercabinet cable
from the upright in the area being installed. Snap the connector lock into
place to ensure the connection is properly made.
5. Connect the 8 ground straps from either the “A” carrier or the enhanced
fan unit to the new "D" carrier. See
Figure 6-38
. These straps were left
connected when the old “D” carrier was removed.
6. Connect the 8 ground straps from the “E” carrier (if installed) to the new
“D” carrier. See
Figure 6-38
. These straps were left connected to the “E”
carrier when the old “D” carrier was removed.
7. For a standard AC-powered control carrier, install the 4 carrier ground
straps. The straps connect ground points G1 and G8 from the top of the
B-carrier backplane to the B-carrier connector panel bracket and ground
points G9 and G16 from the bottom of the B-carrier backplane to the
B-carrier connector panel bracket.
For an enhanced carrier, install the 16 carrier-ground straps. The straps
connect ground points G1 through G8 from the top of the B-carrier
backplane to the B-carrier connector panel and ground points G9 through
G16 from the bottom of the B-carrier backplane to the B-carrier connector
panel . Use the 8 screws to connect the ground straps to the connector
panel (see
Figure 6-40
).
NOTE:
An enhanced carrier is used only in an R8r PPN cabinet that uses
either AC power (U.S.) or Global power.
NOTE:
DC-powered cabinets DO NOT use any of the above carrier-ground
straps.