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4-1
4. Installation
This Section provides further details regarding installation of the
RPC-4850-8N unit.
4.1. Power Supply Connection
Connect the RPC-4850-8N unit to an appropriate -48 VDC, 50 Amp power
supply as shown in Figure 3.1.
The RPC includes two separate -48 VDC DC inputs; connect power cables
to the unit's Circuit "A" and/or Circuit "B" terminal blocks, then connect the
cables to an appropriate power supply. Note that it is not necessary to connect
power to both input circuits; either circuit will supply power for operation
and control functions. However, when power is connected to both circuits,
this allows the second circuit to function as a back-up in the event of a power
outage.
After connecting the power cables to the RPC, install the protective cover
(supplied with the unit) over the power input. Make certain that the power
cables are securely fastened to the input terminal block, and then use the
mounting screw receptacles to attach the protective cover to the terminal block.
Apply DC power to the RPC unit; the ON LED should light, and the RDY
LED should begin to flash. This indicates that the RPC is ready to
receive commands.
CAUTIONS:
Before attempting to install this unit, please review the warnings
and cautions listed at the front of the user's guide.
This device should only be operated with the type of power
source indicated on the instrument nameplate. If you are not
sure of the type of power service available, please contact your
local power company.
Reliable earthing (grounding) of this unit must be maintained.
Particular attention should be given to supply connections when
connecting to power strips, rather than directly to the branch
circuit.
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