User guide

42 ExtremeWare 7.2e Installation and User Guide
Summit 400-48 Switch Overview and Installation
Installing the External Power System
The Extreme External Power System allows you to add a redundant power supply to the Summit 400 in
case of a power supply failure. It consists of a tray (EPS-T) that holds one or two EPS-160 power
supplies, that provide one-to-one coverage for each External Power System that you attach.
To install the EPS-160:
1 Rack mount or place on a desktop near the External Power System. Use the procedure in “Rack
Mounting” on page 34 help in installing the unit in a rack.
2 Connect the EPS-160 power supply to the back of the External Power System using the supplied
cables.
NOTE
The cable length is 1 meter.
The cable connector has a tab that fits into the chassis to ensure correct alignment of the connector.
See Figure 10 to locate the connectors.
Figure 10: Redundant Power Connection
3 Connect the power to the External Power Supply System. The PSU-E LED on the front of the
External Power System should be solid green to indicate that is ready. See Table3 on page23, for a
full description of the LED indicators.
ES4K021
To AC
Slot for plug
Redundant
power cable