Extreme Networks BlackDiamond 8810, Hardware Installation Manual

Page: 52 / 162

Extreme Networks 700/1200 W AC Power Supply Units
Extreme Networks Consolidated XOS Hardware Installation Guide
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Front Panel
The front panel of the 700/1200 W AC PSU provides status LEDs. Table 11 describes the LED behavior
on the front panel.
The front panel on each 700/1200 W AC PSU contains two cooling fans as shown in Figure 14 . Airflow
enters from the front vents on the 700/1200 W AC PSU and exits to the rear vents of the chassis.
Airflow through the 700/1200 W AC PSU is independent from the airflow that exists through the rest of
the chassis.
Figure 14: Cooling fans in the 700/1200 W AC PSU
The AC input is located on the front of the chassis directly in back of each power supply bay. The front
of the 700/1200 W AC PSU has a handle with a cam lever mechanism for both insertion and removal as
shown in
Figure 15 .
Table 11: 700/1200 W AC PSU front panel LED behavior
LED Color Indicates
Power Blinking Green
Solid Green
Off Power is present and standby output is on
AC power is present and power supply is operating normally
There is no power present
Predictive
Failure Blinking Amber
Off A fan has slowed down and is about to fail
The fans and power supply are operating normally
Fails Blinking Amber
Solid Amber
Off There is a current limit on 48 VDC output
The power supply has failed, or there is no AC power to this power supply
The power supply is operating normally
EX_015
Open
Lock