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TMAA04-06 Cross-band Linking, GPS and External Interface Cable

© Tait International Limited February 2021

 

Interface Specification

The following tables summarise the signals used for all connectors on the cable, and shows 
the interfaces between the cable and the radios.

More Information

Please contact your nearest Tait provider for more information about this product.

Auxiliary connectors—pins and signals

Pin Signal 

name

Description

2

AUX_GPIO5

busy (output)

3

RXD

receive  data

4

AUX_GPI3

ignition sense

7

AUD_TAP_IN

audio tap input

8

+13V8

power supply to GPS device

9

AUX_GPIO6

external alert

12

AUX_GPI1

PTT (input)

13

AUD_TAP_OUT

audio tap output

15

AGND

ground

GPS socket—pins and signals

Pin Signal 

name

Description

1

+13V8

power supply from radio

2

GND

ground

3

GND

ground

5

GPS_TXD

transmit data

External interface connector—pins and signals

Pin Signal 

name

Description

4

AUX_GPI3

ignition sense

9

AUX_GPIO6

external alert (radio closest to connector)

10

AUX_GPIO6

external alert (radio furthest from 

connector)

15

GND

ground

rear view

J

B

C

D

E

F

G

H

I

1)

1!

1@

1#

1$

1%

front view

rear view

J

B

C

D

E

F

G

H

I

1)

1!

1@

1#

1$

1%

Summary of Contents for TMAA04-06

Page 1: ...xiliary connector rubber bungs have been removed and this cable has been installed Care must be taken when the radio is being operated in an environment where there is water dust or other environmental hazards Analog Cross band Repeater Operation Cross band repeater mode allows a TM9356 dual radio system be used as a temporary analog repeater Any activity received on one radio will be automaticall...

Page 2: ...grammed the radio user must not enable monitor having the microphone off the hook while entering or during cross band repeater mode The transmit timer if enabled limits the maximum duration of cross band repeater transmissions If a transmit lockout period is programmed then further repeater transmissions will also be inhibited until the lockout timer expires However if a valid received signal is p...

Page 3: ...e transmit valid signals and one radio is receiving an invalid signal such as invalid CTCSS the mute will stay closed and no re transmission will occur However if the other radio then receives a valid signal the radio will attempt to re broadcast this over the other signal Set Tx Inhibit to Busy or Mute to prevent this re transmission occurring System Timing For the cross band repeater to operate ...

Page 4: ...r detailed configuration and programming information contact your local Tait dealer Connecting to the Ignition Signal The cable s external interface connector can be used to connect a TM9356 dual body radio system to the vehicle s ignition signal This will turn the radio system off when the ignition key is off to avoid draining the battery and will turn the radio system on when the ignition key is...

Page 5: ...ty of the radio s auxiliary lines cannot be accessed with this cable That means you cannot connect directly to an external alert device an interface to the external alert such as a controller box must be used Notice The internal pullups normally available from the auxiliary lines are not avail able via this cable If the external alert requires a logic type signal on the output lines the lines must...

Page 6: ...3 RXD receive data 4 AUX_GPI3 ignition sense 7 AUD_TAP_IN audio tap input 8 13V8 power supply to GPS device 9 AUX_GPIO6 external alert 12 AUX_GPI1 PTT input 13 AUD_TAP_OUT audio tap output 15 AGND ground GPS socket pins and signals Pin Signal name Description 1 13V8 power supply from radio 2 GND ground 3 GND ground 5 GPS_TXD transmit data External interface connector pins and signals Pin Signal na...

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