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456 TMAA10-04 Remote PTT Kit TM9100 Service Manual

22.1.2 Installing the Remote PTT

Important The remote PTT must be operable from a normal

driving position.

1. Secure the remote PTT in position using the velcro strap and plug the

remote PTT cord into the remote PTT extension lead.

A common position for the remote PTT is on the gear lever of

the vehicle.

2. Check that the cord and lead do not interfere with the safe operation

of the vehicle.

22.2

Radio Programming

22.2.1 Remote PTT Settings in the PTT Form

The following table shows the settings required in the PTT form of the

programming application. Some of these settings are default settings and

may not need to be changed. Refer to the online help of the programming

application for more information.

Note If hookswitch operation is programmed for the rugged micro-

phone and the Inhibit PTT Transmission When Mic On Hook

field is selected in the PTT tab of the PTT form, then the hands-

free remote PTT cannot transmit when the rugged microphone

hookswitch is closed (the microphone is on the microphone clip).

22.2.2 Remote PTT Settings in the Programmable I/O Form

Note The Programmable I/O form setting for AUX_GPIO4 must have

the default programming settings and the AUX_GPIO4 pullup

resistor on the radio main PCB must be set for the factory default

of 3.3V (R769 fitted).

Table 22.1 Remote PTT settings in the PTT form, External PTT (1) tab

Field Setting

Advanced EPTT1

PTT Transmission Type Voice

Audio Source AUX MIC

Table 22.2 Remote PTT settings in the Programmable I/O form, Digital tab

Pin Direction Label Action Active Debounce Signal State Mirrored To

AUX_GPI1 Input None External PTT 1 Low 25 None None

AUX_GPIO4 None None No Action None None None None

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