User manual

9
2201 Rack Chassis/2200R Redundant Card Canoga Perkins
Each supply is held in position with a short extension at the front, which in turn is held
in place with a finger-tightened Allen type bolt. Position “A” (bottom) should be used
when only one supply is being employed.
It will be necessary to first plug the power supply output cables into their respective
sockets on the backplane circuit board. Then the 115/230VAC or ±48VDC power
source should be connected into the rear of each supply.
The power supply monitor card must be installed in the card position farthest to the
right when viewing from the front of the unit (closest to the power supply). A modem
card cannot be installed in this card position, as the interface to the backplane is
different (see Figure 2-2).
The supply-select slide switch (A / A + B) on the circuit board should be positioned
for the number of power supplies used. (For each modem installed in the 2201 Rack
Chassis, a compatible communication cable will be needed, as well as appropriate
fiber optic cables terminated with the appropriate type connectors. Refer to Table 2-A
for factory settings.)
Figure 2-2.
Rear View of 2201
Rack Chassis with
Modems Installed