The SAN Volume Controller and
each uninterruptible
power supply support
emergency power-off (EPO) shutdowns.
In the event of a room
EPO shutdown, the 2145 UPS detects
a loss of input power. This power loss is reported to the SAN
Volume Controller 2145-4F2,
which completes the process of shutting down the uninterruptible
power supply within
five minutes.
Attention: The 2145 UPS power
off shutdown is normally controlled by the SAN
Volume Controller 2145-4F2.
If an EPO event occurs, but no SAN
Volume Controller 2145-4F2 nodes
that are connected to a 2145 UPS have
been powered on since the 2145 UPS was
powered on, you must remove output power from the uninterruptible
power supply.
To do this, press and hold the off button on the front panel of the 2145 UPS for
at least four seconds.