Installation manual
ICOM 
8-Pin DIN Accessory Port Connector - TGR-SL-CAB8PD 
Radio Models 
Pin-out 
Notes 
JP-1 
IC-275A 
IC-575A/H 
IC-707 
IC-725/726/728/729 
IC-735/736/737/738 
IC-7400 
IC-746** 
IC-746 PRO**  
IC-756 / 756PRO 
IC-756 PROII / III 
IC-761/765 
IC-775/775DSP 
IC-781 
IC-7600/7700/7800 
IC-820H***/821H 
IC-910H 
IC-M600 
IC-M700 PRO 
IC-M710 
IC-M802 
Pin 1 - RTTY or N/C 
Pin 2 - Ground 
Pin 3 - Send 
Pin 4 - Mod In 
Pin 5 - AF Out 
Pin 6 - Squelch 
Pin 7 - +13.8V 
Pin 8 - ALC 
Check the 
SLMOD8PD 
 Jumper Module list 
IMPORTANT: This diagram is for the ACCY 
PORT only. If the SignaLink is attached to your 
radio's 8-pin Round Mic Jack, then please see 
the diagram above under "8-Pin Round MIC 
Connector". 
IC-756PRO users should use digital mode "D-
USB" or "D-LSB". 
**Some customers have reported that the IC-746 
(early model only) does NOT mute the Mic when 
keyed from the Accy Port. If this is the case with 
your radio, then you will need to turn the radio's 
Mic Gain down and/or unplug the microphone. 
**Due to the design of the IC-746PRO, this jack 
does NOT support VHF operation. If you want to 
operate both HF and VHF, then you'll need to use 
the 6-pin mini-DIN Data Port instead. 
**IC-746PRO users should use "USB/LSB Data" 
mode (not regular USB/LSB). 
***IC-820H users need to set the Modulation 
Input Sensitivity switch to "Low", and the Baud 
Rate Selection switch to "AMOD". 
ICOM 
13-Pin DIN Accessory Port Connector - TGR-SL-CAB13I 
Radio Models 
Pin-out 
Notes 
JP-1 
IC-703 
IC-706 
IC-706 MkII 
IC-706 MkIIg 
IC-718*** 
IC-970 
IC-7000** 
IC-7100 
IC-7200 
IC-7410 
IC-9100 
Check the SLMOD13I 
 Jumper Module list 
Tigertronics 
manufactures a 
special cable for 
ICOM 13-pin 
Accessory 
Ports. If you 
would like to 
build your own 
13-pin cable (not 
recommended!), 
please contact our 
Technical Support 
Staff for pin-out 
and wiring 
information. 
For VHF operation on the IC-706 and IC-706MKII you 
will need to move the PTT jumper to Pin #4. 
For VHF/UHF operation on the IC-706MKIIG and IC-
7000, you should turn the following menu item to OFF: 
 Item #30 for IC-706MKIIG 
 Item #20 for IC-7000 
This will force the radio to use the same PTT pin for all 
bands so will not need to change the SignaLink's jumper 
settings. 
***This radio does NOT mute the Mic jack when using 
the Accy Port, so you will need to turn the Mic Gain 
down. 
**This radio does NOT mute the Mic jack when using 
the Accy Port, so you will need to turn the Mic Gain 
down, or use the 6-pin Mini Din Data Port instead. 
Japan Radio Company 
8-Pin Round Mic Connector - TGR-SL-CAB8R 
Radio Models 
Pin-out 
Notes 
JP-1 
JST-145 
JST-245 
Pin 1 - N/C 
Pin 2 - N/C 
Pin 3 - N/C 
Pin 4 - +9V 
Pin 5 - GND 
Pin 6 - PTT 
Pin 7 - Mic GND 
Pin 8 - Mic Input 










