
22
Installing the Radio
TM9100 Installation Guide
© Tait Electronics Limited
August 2005
Table 2.2
Auxiliary connector (radio)— pins and signals
Pinout
Pin Signal name
Description
Signal type
12
AUX GPI1
General purpose digital
input. Programmable
function
Digital,
3V3 CMOS.
5
AUX GPI2
4
AUX GPI3
General purpose input
(ignition sense)
3V3 levels.
Protected for
+13.8V.
10
AUX GPIO4
Programmable function and
direction
Pads available to fit a higher
power driver transistor on
GPIO4 line
Digital, 3V3
CMOS input;
open collector
output with
pullup
2
AUX GPIO5
9
AUX GPIO6
1
AUX GPIO7
11
AUX TXD
Asynchronous serial port -
Transmit data
Digital,
3V3 CMOS
3
AUX RXD
Asynchronous serial port -
Receive data
Digital,
3V3 CMOS
7
AUD TAP IN
Programmable tap point into
the Rx or Tx audio chain.
DC-coupled
Analog
13
AUD TAP OUT Programmable tap point out
of the Rx or Tx audio chain.
DC-coupled
Analog
14
AUX MIC AUD Auxiliary microphone input.
Electret microphone biasing
provided. Dynamic
microphones are not
supported
Analog
6
RSSI
Analog RSSI output
Analog
8
+13V8 SW
Switched 13.8V supply.
Supply is switched off when
radio body is switched off
Power
15
AGND
Analog ground
Ground
rear view
J
B
C
D
E
F
G
H
I
1)
1!
1@
1#
1$
1%
Содержание TM9100
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