2
West Mountain Radio
Operating Manual
Introduction
Thank you for choosing the West Mountain Radio CBA Charger. It
can be used with a West Mountain Radio CBA IV and a user provided
battery charger to automate life cycle tests, automatically alternating
between periods of charging the battery and discharging the battery.
By automatically switching between charge and discharge cycles of the
battery a hands-free lifetime test of the battery can be performed.
When the unit is idle, the two pairs of Power-poles are open. When the
unit is in a charging state, the two Power-poles are connected together,
connecting the user provided battery charger to the battery.
The CBA Charger and software can determine when the battery is done
being charged by inspecting an output signal of the user provided battery
charger, which the user will have to connect to the IN-A or IN-B inputs of
the CBA Charger. If the user provided battery charger doesn’t provide
an external signal to signify a charge is complete, an LED on the user
provided battery charger could be used instead by connecting leads from
the LED to the IN-A or IN-B of the CBA charger. If the user provided
battery requires a button to be pressed or other external signal to start
a charge cycle, the OUT-A and OUT-B connections of the CBA Charger
can be used. When the unit goes into charge cycle, the CBA Charger
closes the OUT-A and OUT-B connectors. When the unit is idle, OUT-A
and OUT-B are open.
CBA Charger Interface
Charge / Discharge Test
The WMR Charger Interface board has the following inputs and outputs:
•
IN-A and IN-B: These should connect to a signal on the charging
unit that indicates charging is complete. An LED will suffice. These
inputs can handle up to 12V.
•
OUT-A and OUT-B: These outputs are shorted (relays closed) when
the software is starting a charge cycle. The purpose of this is to
connect to a push-button on a charging unit, where the push button
might control the start/stop of the charger.
