User Guide
Chapter 1- Hardware Description
1-22
Figure 1-8 shows the front panel of an RMX 4000 DC system.
Figure 1-8  RMX 4000 DC Front View
Table 1-6  Polycom RMX 4000 Component Description 
Component Description
CNTL 4000 (CPU) 
Module
The CNTL4000 module controls and manages the 
RMX 4000. The CNTL 4000 module has an ComExpress 
Pentium-M 1.4GHz processor, a hard disk drive, Compact 
Flash and DDR RAM. 
The Operating System is Linux.
Fabric Switch 
Module (FSM 
4000)
The Fabric Switch Module performs media processing 
functions on the RMX
 4000 unit. This card is managed by 
the RTM-IP 4000.
MPM+ Cards & LEDs
Fan Drawer 
Blank Panels
Control Unit (CNTL 
4000) & LEDs
Optional CPU 
(Future)
Fabric Switch Module 
(FSM 4000)
Fan &
Power 
Status
LEDs
Logo 
Panel & 
ESD 
connector










