Confidential and proprietary information of Extreme Networks. © 2011 Extreme Networks, Inc.
All rights reserved. DRAFT. October 20, 2011
Summit Family Switches Hardware Installation Guide
117
Summit 550-Watt AC and DC Power Supplies
Summit 550 W power supplies are available in the following models:
● 550 W AC PSU-FB (Model 10925)—AC power supply with front-to-back ventilation airflow
● 550 W DC PSU-FB (Model 10926)—DC power supply with front-to-back ventilation airflow
● 550 W AC PSU-BF (Model 10927)—AC power supply with back-to-front ventilation airflow
● 550 W DC PSU-BF (Model 10928)—DC power supply with back-to-front ventilation airflow
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 450 W power supplies have the status LEDs listed in Table 40.
Table 40: Summit 550 W Power Supply LEDs
Position
Color and
State Meaning
Top Steady Green +3.3VSB ok; 12 V ok; power supply is working properly.
Middle Steady Amber Fault condition (for example, 3.3VSB OCP/UCP, 12V OCP/UCP, or fan failure).
Bottom Steady Green Power supply is connected to power.
If the cord is connected and this LED is off, the power supply is defective.
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