Extreme Networks Summit X150 Series Hardware Installation Manual page 135

These power supplies are compatible with Summit X670 switch models that have the same airflow
direction as the power supply. In a redundant power configuration, the airflow direction must be the
same for both power supplies, and it must match the airflow direction of the fans in the switch.
The Summit 550 W power supplies have the status LEDs listed in the following table.
Table 74: Summit 550 W LED Status Indications
Position Color and State
Top Steady Green
Middle Steady Amber
Bottom Steady Green
Summit 750-Watt AC Power Supply
The Summit 750 W AC power supply (Model 10931) is available for PoE models of the Summit X460
series switches.
This power supply is also used in the EPS-C2 external power system (see
System). Each installed Summit 750 W AC power supply can provide up to 380 Watts of PoE power
budget.
The Summit 750 W AC power supply has the status LEDs listed in the following table.
Table 75: Summit 750 W LED Status Indications
Label and Color State
AC OK Off
Green
On
DC OK Off
Green
Blinking
On
ALM Off
Red
Blinking
On
Summit 850-Watt AC and DC Power Supplies
The following 850-watt power supplies are available:
Summit Family Hardware Installation Guide
Meaning
+3.3VSB ok; 12 V ok; power supply is working properly.
Fault condition (for example, 3.3VSB OCP/UCP, 12V OCP/UCP, or fan failure).
Power supply is connected to power.
If the cord is connected and this LED is off, the power supply is defective.
Meaning
No AC input
AC input is good.
Both DC outputs (55 V and 12 V) are bad or not enabled.
One output is enabled and good; the second output is bad or not enabled.
Both the 55 V and 12 V outputs are enabled and good.
No fault condition exists.
Power supply alert: power supply is likely to fail because of a developing fault,
such as abnormal thermal conditions or poor fan performance.
or
One output (55 V or 12 V) is bad.
Both outputs (55 V and 12 V) are bad.
Power supply is receiving 3.3 VSB from the system. (AC OK and DC OK are off.)
Thermal shutdown, fan failure, or any fault condition when both 55 V and 12 V are
turned OFF.
Summit Power Supplies
EPS-C2 Redundant Power
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