24
Unison
®
ERn Rack Mount Enclosure Installation Manual
Status Indicator
When the redundant power supply is installed properly, and power is applied to the ERn enclosure, the
LED will indicate in green if the supply is powered. If the LED is off but the primary rack supply status
indicator is on, the redundant power supply requires servicing. Alternatively, if the primary rack supply
status LED is off, but the redundant power supply is on, the primary rack supply requires service.
Contact ETC Technical Services for assistance. See
Contacting ETC
on
page 4
.
Note:
The redundant power supply (ERn-RPS) is not supported in ERn4 enclosures at 230
VAC. Instead the ERn4 at 230 VAC is shipped from the factory with a rack power
supply installed in the top (normal) position and in the lower option module slot as
standard.
Install the redundant rack power supply in the bottom option module slot of
the ERn enclosure and secure it in place with the two captured screws.