Extreme Networks BlackDiamond 8810, Hardware Installation Manual

Page: 54 / 162

Extreme Networks 700/1200 W AC Power Supply Units
Extreme Networks Consolidated XOS Hardware Installation Guide
54
Power Supply Controller Overview
The BlackDiamond 10K series switch includes two power supply controllers, located in the back of the
chassis, that collect data from the installed power supplies and report the results to the MSM modules
via an I
2
C interface.
When the BlackDiamond 10K series switch is first powered on, the power supply controllers enable the
power supplies by providing 48Vpower. The power supply controller also detects and reports
incompatible combinations of power supply types and line voltage feeds and disables the power supply
if an unsafe condition arises.
Two power supply controllers installed in the BlackDiamond 10K series switch provide primary/
backup redundancy in case that one of the controllers fails or is removed. At least one power supply
controller must be installed.
CAUTION
Do not reach into the power supply controller access area when power is on.
Figure 17 shows the front panel of the power supply controller.
Figure 17: Power supply controller front panel
NOTE
The RJ-45 port on the power supply controller should not be used as an Ethernet port.
NOTE
The Aspen 8810 PSU/fan controller and Aspen 8810 spare PSU/fan controller are discussed on page 137 .
EX_018
Module status LEDs
PoE power control port
with status LEDs