40
Description
TM8100/TM8200 Service Manual
© Tait Electronics Limited
June 2006
2.3.3
Auxiliary Connector
The auxiliary connector is the standard interface for external devices that are
typically connected to a radio. The auxiliary connector is a 15-way
standard-density D-range socket. The auxiliary connector provides a serial
port, three programmable input lines, four programmable digital I/O lines
and audio I/O.
The I/O lines can be programmed for a variety of functions, logic levels,
and in some cases, direction. Audio lines can also be programmed to tap
into, or out of, different points in the audio processing chain. For more
information refer to the online help of the programming application.
Table 2.3
Auxiliary connector – 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
General purpose digital input.
Programmable function.
With LK3 fitted, GPI2 is an
emergency power sense input.
a
Digital, 3V3 CMOS
4
AUX_GPI3
General purpose digital input.
Programmable function.
With LK2 fitted, GPI3 is a power
sense input.
Digital, 3V3 CMOS
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
b
Switched 13.8V supply. Supply is
switched off when radio body is
switched off.
Power
15
AGND
Analog ground
Ground
a. For more information on hardware links refer to
“Power-Sense Options” on page 83
b. Can be switched or unswitched. For more information refer to
“Connector Power Supply Options” on page 86
J
B
C
D
E
F
G
H
I
1)
1!
1@
1#
1$
1%
rear view
Summary of Contents for TM8235
Page 1: ...TM8100 mobiles TM8200 mobiles Service Manual MMA 00005 04 Issue 4 June 2006...
Page 10: ...10 TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 62: ...62 Description TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 148: ...148 Disassembly and Reassembly TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 162: ...162 Servicing Procedures TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 178: ...178 Interface Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 258: ...258 Receiver Fault Finding TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
Page 446: ...446 Spare Parts TM8100 TM8200 Service Manual Tait Electronics Limited June 2006...
