Testing the
Interface
Expander
To check the operation of the Interface Expander, perform the following steps in the order given.
1Confirm that the UPS in on and that the battery is fully charged.
2Verify that the Interface Expander has been installed, connected, and configured.
3Confirm that all connected servers and devices are on and running their power management software with power management screens visible, if appli- cable.
4Confirm that the status LED on the Interface Expander is on, indicating normal operation.
5Simulate a utility power failure.
6Confirm that the status LED of the Interface Expander is mostly on with a single blink off, indi- cating that the Interface Expander is sending an On Battery signal to the connected servers or devices. See “Status LED: Table 2” on page 6.
7Confirm that all connected servers and devices have received the On Battery message from the Interface Expander.
8Restore utility power.
9Confirm that all connected servers and devices have received the message that utility power has been restored.
Note: To check the shutdown mode of your config- uration, keep the utility power off long enough to allow all connected servers and devices to shut down. After all connected servers and devices have shut down, restore power and verify that they all restart.
23
