Ericsson M-RK Installation & Operator's Manual page 12

Enhanced Vehicular Charger (344A4616P2)
This front panel contains three indicator lights; TX, RDY, and
CHRG, an ON/OFF volume control switch for operation of the M-RK
radio as a mobile radio, an Option push-button, and the UDC Rotary Latch
Knob.
1) Indicator Lights
TX (Red)
RDY ( Green)
CHRG ( Yellow)Lights when radio is first inserted in the
2) ON/OFF Volume Control Switch
This switch powers the radio for operation as a mobile radio.
3) Option Push-button
This button can be programmed for many functions, but factory
programming causes the same action as the M-RK "clear"
function.
operation.
4) UDC Rotary Latch Knob
This knob latches the M-RK radio in the charger and connects the
UDC connector to all circuits within the charger to allow the M-
RK radio to operate as a mobile radio. It should always be latched
when the radio is in the charger.
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Lights if the M-RK radio is transmitting
Lights if battery is 90 to 100 percent charged
and the charger is in trickle charge mode.
charger. Indicates that the radio is in charge
mode.
This option is not available during remote control