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b.
Route and terminate the C7 power cables to the rear of the DC distribution panel as
follows:
Connect the red
A -48V
wire to the appropriate terminal on the -48V buss (top).
Connect the black
A RTN
wire to the appropriate terminal on the Return buss
(bottom).
Connect the red
B -48V
wire to the appropriate terminal on the -48V buss (top).
Connect the black
B RTN
wire to the appropriate terminal on the Return buss
(bottom).
Tighten all screws to secure the cable connections.
6.
Dress the slack cables toward the hinged side of the rack. Use cable ties to secure the
cables to the rack.
7.
Install the C7 fan tray into the expansion shelf. See
Installing a C7 Fan Tray
for instructions.
8.
To apply power to the C7 expansion shelf, switch
ON
the two 30A C7 load breakers at
the DC distribution panel.
To connect interface cables to the C7 expansion shelf
1.
Unlock the hinged front rack and swing it to the open position.
2.
Install the Metallic Test Access (MTA) cable (from the expansion kit) as follows:
Note:
MTA cables daisy-chain between C7 shelves. The expansion shelf resides at the
end of the chain.
a.
On the C7 expansion shelf, connect the MTA cable's
FAC IN
end to the
A FAC IN
wire-wrap pins on the AIM board (black to Tip, white to Ring).
b.
On the C7 shelf above the expansion shelf, connect the MTA cable's
FAC OUT
end
to the
A FAC OUT
wire-wrap pins on the AIM board (black to Tip, white to Ring).
