Grass Valley Trinix Back-Up Power Supplies Apr 13 2010 - Manual (Page 25)

25 Trinix Back-Up Power Supplies Installation Manual
Overview
Section
4
Introduction
CAUTION Installation of this product requires the connection of several 48 VDC power
cables. The safest and recommended method to make these connections is
to remove power to the Trinix, before making the connection. In other words,
you must take the router and all associated signals off-line long enough to
connect between six and fifteen cables to a terminal block(s), depending on
the size of the router. If for some reason this connection can only be per-
formed with power on, it must be made using special procedures and only by
Thomson Grass Valley personnel.
Overview
The TRX-PS-BU series of products, sometimes referred to as “tertiary”
power supplies, are designed to supplement the Trinix DV-33128, DV-33256
and DV-33512 internal power supplies to provide increased backup protec-
tion. Two packages are available:
• TRX-PS-BU1200 - 1 ea. 1200 watt module mounted in a 1 RU frame
• TRX-PS-BU2400 - 2 ea. 1200 watt modules mounted in a 1 RU frame
These packages can be used in various combinations with Trinix DV-33128,
DV-33256, and DV-33512 routers. This flexibility is shown in
Figure 1 on the
next page.
The power supplies are bussed together so that the power load is shared at
all times. If one power supply fails, the remaining power supplies on that
bus will continue to provide power. The failed power supply should be
replaced as soon as possible.