User's Manual

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When control is switched in a “Slave” mode system, all of the radio settings
and states will remain in effect that have been selected on the active
controller.
Independent Mode Operation
In Independent mode, the radio system operates as if there are two radio units
each controlled by a separate control unit. Each control unit maintains its own
System and Group settings that are restored when control is switched.
The idle controller will display DUAL on line 1 to indicate that it is idle. If a
key is pressed at the idle controller, other than PTT,
E or siren and light
keys as noted in following paragraphs, a low tone will sound at the idle
controller.
When control is switched in Independent mode, the idle controller will restore
its own System and Group settings instead of using the settings of the
previously active controller. Any pending operations at the active controller,
other than
E or Siren & Light, will be terminated.
Emergency Operation
Either control unit (active or idle controller) can declare an emergency,
provided radio has been pre-programmed to enable emergency declaration. If
the idle controller declares an emergency, control is switched to the idle
controller and any current transmission from the previously active controller is
terminated.
Siren & Light Control
Siren & Light control is only available from the control unit that is pre-
programmed for these functions. Typically, the control unit at the driver's
location would be programmed. The control unit that has these functions
programmed can activate them regardless of whether it is an active or an idle
controller.
Dual Control Audio
Audio output during dual control operation is a pre-programmed function.
Default operation routes audio only to the active controller.
MULTIPLE RADIO OPERATION
The M7100
IP
Series mobile radio can be configured to operate in multiple
radio mode that permits more than one radio to be controlled from a single
control unit or control location. The radios could be different frequency splits,
trunked/conventional, etc.
In multiple radio operation, the radios continue to operate as individual radios
except with a common control unit. The control unit is used for display and