Grass Valley Trinix Back-Up Power Supplies Apr 13 2010 - Manual (Page 35)

Trinix — Back-Up Power Supplies Installation Manual 35
Installation Procedure - DV-33128 and DV-33256 Units
Installation Procedure - DV-33128 and DV-33256 Units
1. Install the supplied 1RU Power supply rack-power supply frame:
a. Install the external power supply frame in a suitable 19-inch
equipment rack.
The frame is shipped with the DC cables already connected.
The power supply frame should be mounted in the same equip-
ment rack as the Trinix, but it may be mounted in an adjacent rack
if necessary. The cable provided for connection to the Trinix is
approximately ten feet (3 m) long.
Leave 1RU rack space above and below the power supply for
optimal cooling if extra rack space is available.
b. Test the external supplies prior to connecting to the Trinix router.
Temporarily apply electrical tape each of the DC output connectors
(red, blue, white, yellow) to isolate them to prevent shorting out.
Apply power to the external power supplies.
c. Using a voltmeter, verify that the external frame’s output voltage
measures between 47 and 48.5 VDC.
d. Unplug the external power supplies AC power cords.
e. Unscrew the external supplies restraining screws and slide the
supply out of the chassis 1 inch.
CAUTION The following step will interrupt all signals passing through the router until
power is restored.
2. Proceed as follows:
a. Power down the router by unplugging the AC cord of each of the
internal power supplies.
b. On the rear of the Trinix PS chassis, locate the “DC IN +” and “DC
IN -” terminal blocks. See
Figure 2 .