Tait tm8200 - Interface Specification

128 TMAA10-04 Remote PTT Kit and TMAA10-05 Hands-Free Kit TM8100/TM8200 Accessories Manual
© Tait Electronics Limited August 2005
VOX Settings in the
Key Settings Form
In the Key Settings form of the programming application, one of the
function keys on the control head can be programmed to activate VOX.
17.5 Interface Specification
The following table and diagram summarizes the signals used for the remote
PTT and hands-free kits on the radio’s auxiliary connector and shows the
interface between the kits and the radio.
Table 17.3 VOX settings in the PTT form, External PTT (2) or VOX tab
Field Setting
EPTT2 or VOX Inhibit Inhibit PTT When Emergency Active select
a
a. These are recommended settings only.
Inhibit PTT Transmission When Mic on Hook clear
a
Indicate PTT Inhibit to User clear
a
Advanced EPTT2 or VOX PTT Transmission Type Voice
Audio Source AUX MIC
PTT Priority Highest
a
Table 17.4 VOX settings in the Key Settings form
Field Setting
Function Key Actions Key 1
a
a. Select the required function key.
VOX Activation
Table 17.5 Auxiliary connector—pins and signals
Pin Signal name Description
8 +13V8_SW
power to hands-free microphone pre-
amplifier
10 AUX_GPIO4
reference voltage to pre-amplifier
regulator
12 AUX_GPI1
PTT signal from hands-free kit
14 AUX_MIC_AUD
microphone audio to the radio
15 AGND
analogue ground
J
B
C
D
E
F
G
H
I
1)
1!
1@
1#
1$
1%
rear view