SLMOD8RI - This jumper module is compatible with virtually all ICOM radios that use an 8-pin round type Mic jack. This includes but is not limited to the radios listed below. Be sure to see the "PWR / SPKR Jumper Settings" note below!
ICOM
IC-1201/1271/1275
IC-22U/25/27/28
IC-228/229/251AE
IC-255/260/271/290
IC-2400/2500
IC-37A/38A/375
IC-3200/3210/3220
IC-45/47/48
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-756/756PRO
IC-756PROII/PROIII
IC-7400/7700/7800
IC-751/761/765/775/781
IC-820H/901
PWR / SPKR Jumper Settings - To maintain compatibility with as many radios as possible, this jumper module has two small jumpers that can be set to enable Power and Speaker Audio.
PWR - This jumper is *NOT* used with the SignaLink USB, but can be installed to power the older SignaLink SL-1 or SL-1+ model from your radio if there is sufficient power available on Pin #2 of the Mic connector (check your radio manual).
SPKR - This jumper should only be installed if your radio has Speaker Audio on Pin #8 of the Mic jack (check your radio manual). If Speaker Audio isn't available, then you'll need to connect an audio cable between the radio and the SignaLink as described in the SignaLink Installation Manual.