•
Connect the antenna feed cable to the RF OUT connector of the RM125/RM125R.
•
When an external device is used, connect the prescribed cable to the accessories
connector of the RM125/RM125R that supports the corresponding device.
7. Connect audio accessories to the front panel connectors.
DC Connections
The RM125/RM125R may be connected to DC sources, as explained in the
section (page 12).
Figure 6 shows the connections to an external 13.8 VDC lead-gel or lead-acid battery, and Figure 7
shows the connections to an external DC power source. As the arrangements needed for these
connections depend on the specific site, all the accessories required for the connections shown in
these figures must be provided by the customer.
Note that the transceiver draws some current from the DC source (battery or site power) even when it
is switched off, and therefore you should connect the transceiver to the battery only when ready to
start using it.
You should also make arrangements to disconnect the battery if the radio is not used for prolonged
periods.
Caution
Risk of explosion if incompatible battery is used or battery is connected
with incorrect polarity!
Do not make connections to the BAT terminals when the RM125/RM125R
is turned on and powered from AC.
1. Before starting, make sure that the AC power switch on the RM125/RM125R front panel is set
to the OFF (down) position.
2. Refer to Figure 6 or Figure 7, as appropriate and start by making the connection to the
negative (–) BAT terminal of the RM125/RM125R.
3. Make the connection between the external battery or DC power source to the positive (+)BAT
terminal.
ON
REMOTE CONTROL
ACC-J1
ACC-J2
ACC-J4
ACC-J3
AMP-CONT
13.8V
+
-
AC
BAT
RF OUT
TX IN
RX IN
PPS-CONT TX OUT RX OUT
OFF
110/220V
12V Battery
Fuse
30A
Figure 6. RM125/RM125R Connections to External Battery
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