Connecting The Rmx 4000 To -48Dc Selv Power - Polycom RMX RMX 4000 Hardware Manual

Polycom RMX 4000 Hardware Guide

Connecting the RMX 4000 to -48DC SELV Power

1
On the DC Power Rail Modules (PRM's), set the two circuit breakers
to OFF.
2
Ensure that the cables from the Main that supplies electricity to the
DC power units are OFF or disconnected.
3 Remove the transparent plastic caps on the terminal block.
4
Using the two wires of an 10 AWG cable running from the DC power
distribution unit, connect the black wire into the -48V IN terminal
block and the red wire to the -48V RTN terminal block.
•
A 10 AWG cable must be used to connect the mains with the RMX 4000 DC
Power Rail Module.
•
The supply wires for DC version must be terminated using quick
connectors.
•
Extension cords may not be used.
ESD connector
Ground connector
Circuit
breaker
+48V RTN
The center PEM slot/module is fitted with a blank panel and the slot cannot be
used on a system with DC Voltage.
Blank panel
-48V IN

1-17