TM9456 Dual-Radio Installation and Programming Guide Programming a Dual-Radio System
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© Tait Limited
July 2016
3.5
Calibrating a Dual-Radio System
TM9456 dual-radio systems do not support calibration of the radio system
as a whole. The system must first be disassembled to a single head/single
body configuration. If calibration is required after repair, the radio body
must be calibrated outside of the system before re-installation.
3.6
Loading Encryption Keys
Encryption keys can be loaded into a dual-radio system by using a device
such as the EnableProtect Key Fill Device. The process of loading
encryption keys into a dual-radio system using a Key Fill Device is as
follows:
1.
Make sure that the radio you want to key fill is the active radio. Do
this by using the “Switch active radio” function key or menu option.
2.
Plug the Key Fill Device into the control head and complete the key
fill operation.
3.
Unplug the Key Fill Device from the control head.
4.
Activate the second radio using the “Switch active radio” function
key or menu option.
5.
Plug the Key Fill Device into the control head and complete the key
fill operation for the second radio.
3.7
Limitations
The following functions are not supported or have limited functionality in
a dual-radio system.
OTAP
Over-the-air programming is not supported. The radio must be configured
by connecting the radio directly to a PC and using the programming
application.
OTAR
Over-the-air re-keying is not supported.
Emergency
It is not possible to synchronize both radios during emergency cycling
operation, when a callout phase requiring an acknowledgement is
programmed. Callouts should either be removed, or emergency operation
should only be configured on a single radio.
