Polycom RMX DOC2560B Getting Started Manual page 49

If the unit is rack mounted, the single-point ground on the MCU must
be connected to the rack with a single conductor and fixed as to
prevent loosening. When using bare conductors, they must be coated
with an appropriate antioxidant compound before crimp connections
are made. Tinned, solder-plated or silver plated connectors do not
have to be prepared in this manner.
6 Replace the transparent plastic caps on the terminal block.
7
Turn ON the Main that supplies power to the RMX.
8
Turn ON the circuit breaker on each of the DC Power Rail Modules.
Polycom RMX 1500/2000/4000 Getting Started Guide
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