Owner`s manual

Power Supply Module and Backup Battery
3-5
Connector Name Description Notes
12V DO Control Control input that enables
centralized disabling of
Electrically Energized (EE)/
Magnetically Latched (ML)
relay outputs in selectable
DO modules.
Input open = Relays are
disabled.
Input shorted = Relays are
enabled.
This input controls a
dedicated 12V power line
that is available to all the
slots in the frame. In each
relay DO module, the user
can mechanically select to
power the relay coils from
this dedicated 12V power
line.
For details on setting this
control, see the Module
Configuration section of the
DO Relay Module chapter.
12V Out (Reserved) Pin 1- PGND
Pin 2- 12V DO
Pin 3- GND
Pin 4- MAIN (12V)
Battery In/Out
(only in power supply with
charger)
Battery charger output when
the main power exists.
Backup power input from
battery when the main power
fails.
The charging voltage level is
controlled by the battery
charger and is a function of
the temperature.
Temperature Sensor Sensor for battery
temperature to control
charging level.
(In modules with power
supply and charger only)
For more information, see the
Backup Battery section
below.
AC/DC Main Power Input Cable inlet for main power
cable (AC or DC)
The cable is part of the RTU
frame (connected to the
power junction box.
Note: When the cable male
connected is place in this
input, it locks the power
supply module in its slot. To
remove the power supply
module, first unplug the
power input cable.