Polycom DOC2560C - Manual (Page 47)

Polycom RMX 1500/2000/4000 Getting Started Guide
2-15
Connecting the RMX 4000 to the Power Sources
Connect the following power cables to the RMX 4000 back panel:
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.
The size of the protective earthing conductor & cable should be a minimum of
10AWG.
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.