1.AC INpUT Of ADApTOR (OpTION)
Install the external adaptor (OPTION) after open
the left top cover, when it is needed.
The power is supplied by the ARM-911 if the
adapor is not used.
If the external adaptor is used, then the maximum
operable distance can be extended and the power
consumption of ARM-911 is decreased.
2.MIC INpUT TERMINAl
This is the terminal for the PTT MIC input.
3.ExTERNAl ADApTOR (OpTION) INpUT
This is the DC 24V input terminal of the external
NOTE: ADAPTOR (OPTION) can be installed
inside the unit after open the left top cover or can
be installed outside the unit and connect the DC
24V of the adaptor to the external adaptor input
If the adaptor is installed inside the unit, then
install the adaptor after remove the metal plate of
the AC input position of the adaptor.