Summit 770 W AC Power Supplies

Summit 770 W AC power supplies are available in the following models:

• 770 W AC PSU-FB (Model 10960)—AC power supply with front-to-back ventilation airflow
• 770 W AC PSU-BF (Model 10961)—AC power supply with back-to-front ventilation airflow

These power supplies are compatible with X590, X690 and X870 switches that have the same airflow direction as the power supply.

The Summit 770 W AC power supplies employ a single, bi-color LED to indicate power supply status, as seen in Summit 770 W AC Power Supply LED Status Indications:

Table 1. Summit 770 W AC Power Supply LED Status Indications

LED Indicator Status	DC Power Redundancy Status (Green)	Power Supply Failures and warnings (Amber)
Off	No AC power to all power supplies or PSU is ON but with warning events	PSU is Healthy or No AC power to all power supplies
Flashing (1 Hz)	PSU is OFF but 5VSB is ON	PSU warning events: high temp, high power, high current, slow fan, under input voltage
On	PSU is switched on and is running (Output ON and OK)	PSU critical event causing a shutdown: failure, OCP, OTP, OVP, UVP, Fan Fail