User guide

Polycom RMX 1500/2000/4000 Getting Started Guide
2-19
AC Power Supply connections:
1 Insert power cables to each of the three AC Power Entry Modules
(PEMs).
Figure 2-2 RMX 4000 Rear Panel View with AC Power
DC Power Supply connections:
1 On the DC Power Rail Modules 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 a 10 AWG cable running from the DC power
distribution unit, connect the black wire into the -48VDC terminal
block and the red wire to the RTN terminal block.
Power Cables
Two types of circuit breakers can be installed on the DC Power Rail Module
(PRM). For more information, see the RMX 4000 Hardware Guide.
• A 10 AWG cable must be used to connect the mains with the RMX 4000 DC
Power Rail Model.
• The supply wires for DC version must be terminated using quick connectors.
• Extension cords may not be used.