Polycom DOC2709A Hardware Manual page 30

RealPresence Collaboration Server (RMX) 4000 Hardware Guide
Figure 1-13 shows the front panel of an RMX 4000 DC system.
Panel &
connector
Figure 1-13
Table 1-9
Component
CNTL 4000 (CPU)
Module
Fabric Switch Module
(FSM 4000)
AC/DC Power Supply
Modules
Fan Drawer
1-22
MPM+/MPMx Cards & LEDs
Logo
ESD
Fabric Switch Module
(FSM 4000)
RMX 4000 DC Front View
RMX 4000 Component Description
Description
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.
The Fabric Switch Module performs media processing functions on the
RMX 4000 unit. This card is managed by the RTM-IP 4000.
The AC Power Supply drawers are located below the MPM+/MPMx Cards
and are connected to the backplane by means of a power connector.
Operating at 100-240 volts AC 50/60 Hz all power supplies have built-in
load sharing capabilities.
On systems with DC current, the Power Rail Module (PRM) provides direct
current to the rear of the RMX through the backplane.
Eight fans are mounted sideways and stacked in a drawer. The drawer is
connected to the Back-plane by a connector.
Airflow is from right to left, and out the side of the MCU. Each time a board
temperature sensor passes one of its thresholds an event is sent to the
ShelfManager, whereupon an threshold alert is posted on the RMX
Manager, and increases the fans speed. There are currently three sets of
thresholds: Normal, Major and Critical. When the temperature reaches a
critical threshold (and the fan's speed increase did not resolve the issue),
the controller of the relevant board initiates a shut down.
Control Unit (CNTL
Blank Panels
4000) & LEDs
Fan Drawer
Fan &
Power
Status
LEDs
Optional CPU
(Future)
Polycom, Inc.