Installation manual
ICOM
4-Pin Round Mic Connector - TGR-SL-CAB4R
Radio Models
Pin-out
Notes
JP-1
IC-22
IC-202/215/245/280
IC-402
IC-502/551
IC-701
Pin 1 – Mic Input
Pin 2 – PTT
Pin 3 – N/C
Pin 4 – GND
ICOM
8-Pin Round Mic Connector - TGR-SL-CAB8R
Radio Models
Pin-out
Notes
JP-1
IC-22U/25/27/28
IC-37A/38A/375
IC-45/47/48
IC-228/229/251AE
IC-255/260/271/290
IC-471/475/490
IC-505/551/560/575
IC-707/718/720/725/726
IC-728/729/730/735
IC-736/737/738/740/745
IC-746/746PRO
IC-751
IC-756/756PRO
IC-756PROII/PROIII
IC-761/765/775/781
IC-820H/901/910
IC-1201/1271/1275
IC-2400/2500
IC-3200/3210/3220/3230
IC-7400/7600/7700/7800
Check the SLMOD8RI
Jumper Module list
Pin 1 – Mic Input
Pin 2 – N/C**
Pin 3 – N/C
Pin 4 – N/C
Pin 5 – PTT
Pin 6 – GND
Pin 7 – GND
Pin 8 – Speaker**
**Speaker audio (usually Pin #8) is available on some
models. Check your radio manual for availability of
these signals and add the appropriate jumpers.
IMPORTANT: This diagram is for the MIC JACK
only. If the SignaLink is attached to your radio's 8-pin
Accessory Port, then please see the diagram below
under "8-pin DIN Accessory Port Connector".
Check Other Listings for these radios - you may be
able to use the DIN, PACKET, ACCESSORY, or
DATA jack
ICOM
RJ-45 Mic Connector - TGR-SL-CABRJ4
Radio Models
Pin-out
Notes
JP-1
IC-207H**/208H**
IC-281A/281E/281H
IC-703/706/706MKII
IC-2000
IC-2100H**/2200H**
IC-2300H**
IC-2700**/2720H**
IC-2800**/2820**
IC-7000**
IC-V8000**
ID-800H** /880**
Pin 1 – +8V***
Pin 2 – N/C
Pin 3 – Speaker***
Pin 4 – PTT
Pin 5 – GND (mic)
Pin 6 – Mic Input
Pin 7 – GND
Pin 8 – N/C
***Speaker audio is available on some models. Check
your radio manual for availability of these signals and
add the appropriate jumpers.
**Speaker Audio is NOT available on the Mic jack of
this radio.
Check Other Listings for these radios - you may be
able to use the DIN, PACKET, ACCESSORY, or
DATA jack