Modular SD/HD Video Router
Rev. 13
17
If the frame is equipped with a single power supply module, only one AC
mains connection is used. However, if the frame is equipped with dual,
redundant power supply modules, both AC mains connectors must be used,
preferably from two different mains circuits.
DC battery power
is connected to the frame with screw terminals.
If the frame is equipped with a single power supply module, only one DC
battery connection is used. However, if the frame is equipped with dual,
redundant power supply modules, both DC battery connectors must be used,
preferably from two different battery circuits.
A combination of dual, redundant power supply, using both an AC mains and
a DC battery is possible. The frame must then be equipped with a power
supply module of each type, and one AC connector and one DC connector
must be used.
3.3.4
Status LEDs and Relay contacts
There are 2 LEDs on the front of each power supply module, and they indicate
the following:
-
The
upper, RED
LED should be normally OFF. If it is ON, there is a power
supply failure, indicating that the power supply module must be replaced.
-
The
lower, GREEN
LED must be ON when mains power is connected. If this
LED is OFF, it means that there is no mains power supplying the frame.
There are also two Power fail alarm relay contacts on the rear side of the
frame; see Chapter 1 for details. Each installed PSU module has a separate pair
of contacts. The relay contact is normally open, and the contact
closes
on
power failure.
-
The PSU module A alarm is formed by contact between Pin 3 and Pin 6
(Green pair)
-
The PSU module B alarm is formed by contact between Pin 1 and Pin 2
(Orange pair)
Note:
There is a switch on the right hand side of the power supply module that
selects mains voltage. The mains voltage can be either 110VAC or 230VAC.
This switch
must
be set in the correct position, depending on the mains
voltage on the router’s site.
Failing to select correct AC mains voltage properly may damage the
Power Supply Unit.
