Polycom RMX DOC2548A - Manual (Page 20)

Chapter 1- Hardware Description
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The airflow of the RMX 4000 is from right to left. Be sure that the
areas on the left and right side of the system are clear for proper
ventilation.
Reverse Mounting the RMX 4000 in a Rack
It is possible to reverse mount the RMX 4000 in a rack using 19” or 23”
brackets.
To reverse mount the RMX 4000 on a 19” rack:
1
Remove the handles and brackets from the front of the RMX.
2 Attach the brackets to the rear of the RMX.
When the unit is installed on a rack, the rack must be properly grounded to the
central office ground. The rack must be grounded with two-hole compression-
type connectors using copper conductors (tinned or untinned). Wire, bus bar or
braided strap connectors are acceptable.