© Tait Limited November 2012
www.taitradio.com
402-00004-03
TMAA02-02 DTMF Microphone
Installation Instructions
Introduction
The TMAA02-02 DTMF microphone plugs into the
microphone socket on the radio control head, and
enables users to make calls to a PABX or PSTN.
The microphone button operates a hookswitch,
which is closed when the microphone is connected to
the microphone clip and open when the microphone
is removed from the microphone clip. The function
of the hookswitch is determined by the
radio programming.
The TMAA02-02 DTMF microphone is not suit-
able for use with PTT signalling. An example of
PTT signalling is leading ANI.
Operation
1 To make a call, enter the required number using the DTMF keypad. The DTMF micro-
phone generates audible DTMF tones as the microphone keys are pressed.
2 Press the PTT key and speak clearly into the microphone.
3 Release the PTT key when you have finished speaking.
Installation
Installing the Microphone
Notice
The DTMF microphone grommet must be installed whenever the microphone
is plugged into the microphone socket. When installed, the grommet has two functions:
■
to prevent damage to the microphone socket when there is movement of the
microphone cord, and
■
to ensure that the control head is sealed against water, dust and other environmental
hazards.
1 Plug the DTMF microphone cord into the microphone socket on the radio control head.
2 Slide the microphone grommet along the microphone cord and push two adjacent cor-
ners of the grommet into the microphone socket cavity.
3 Squeeze the grommet and push the remaining corners into position.
4 Check that the grommet is seated correctly in the cavity.
PTT key
grommet
microphone button
not shown
(to rear of
microphone)
