Cooling System And Fans - Foundry Networks FES Installation Manual

Foundry Hardware Installation Guide for the FES, FESX, and FWSX
RPS-X424-POE AC and RPSDC-X424-POE Power Supplies
The RPS-X424-POE AC and RPSDC-X424-POE power supplies are supported in the FESX424-POE. The
FESX424-POE comes with one AC or DC power supply. All models have two power supply slots, enabling you to
install a second supply for redundancy.
The RPS-X424-POE AC and RPSDC-X424-POE power supplies are auto-sensing and auto-switching. The
supplies provide 600 watts of total output power, including +12VDC @ 10A to the system and -48VDC @ 10 A for
Power over Ethernet applications. The supplies provide 100-240 VAC input, 50-60Hz @ 9A to 3.2A.
WARNING: The RPS-X424-POE and RPSDC-X424-POE power supplies are designed exclusively for use with
the FESX424-POE. The power supplies produce extensive power in order to support 802.3af applications. Install-
ing the power supply in a device other than the FESX424-POE will cause extensive damage to your equipment.
Figure 2.16 shows a rear view of the FESX424-POE containing one AC power supply.
Figure 2.16 RPS-X424-POE AC power supply
Figure 2.14 shows a rear view of the FESX424-POE containing one DC power supply.
Figure 2.17 RPSDC-X424-POE power supply

Cooling System and Fans

This section describes the fans in the FES, FESX, and FWSX chassis.
FES Fans
The FES cooling fans cool the CPU, main memory, and voltage regulators. The fans use either a push or pull
configuration to move the air from the left side of the device to the right side of the device.
The fans in the FES operate at a steady speed, and do not support multiple fan speeds as do the fans in the FESX
and FWSX.
FESX and FWSX Fans
The FastIron Edge Switch X-Series and FastIron Workgroup Switch X-Series include two three-speed fans that
operate at low speed, then adjust based on the ambient temperature and configured or default temperature
thresholds. Both fans operate simultaneously at the same speed. If one fan fails, it does not affect the operation of
the other fan.
2 - 20
AC Power
Power Supply locking screw
Connector
Plastic Latch
© 2006 Foundry Networks, Inc.
Power Switch
Power Supply (POE)
June 2006