Installation manual
YAESU 
RJ-11 Mic Connector - TGR-SL-CABRJ1 
Radio Models 
Pin-out 
Notes 
JP-1 
FT-90/90R 
FT-100** 
FT-1500M 
FT-1802 / 1900R 
FT-2600 
FT-2800M 
FT-2900R 
FT-7800R/7900R 
FTM-350 
Pin 1 – N/C 
Pin 2 – N/C 
Pin 3 – +9V 
Pin 4 – GND 
Pin 5 – Mic Input 
Pin 6 – SW1 
Pin 7 – N/C 
Pin 8 – N/C 
**With the FT-100, the PTT jumper MUST be replaced 
with a standard 1/4 watt 27k resistor. 
Other Yaesu models with an RJ-11 Mic jack might also 
use these same settings (check your radio manual). 
Check Other Listings for these radios - you may be 
able to use the DIN, PACKET, ACCESSORY, or 
DATA jack 
YAESU 
RJ-45 Mic Connector - TGR-SL-CABRJ4 
Radio Models 
Pin-out 
Notes 
JP-1 
FT-2400 
FT-2500 
Pin 1 – N/C 
Pin 2 – Speaker 
Pin 3 – PTT 
Pin 4 – Mic Input 
Pin 5 – GND 
Pin 6 – N/C 
Pin 7 – N/C 
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. 
Check Other Listings for these radios - you may be 
able to use the DIN, PACKET, ACCESSORY, or 
DATA jack 
YAESU 
RJ-45 Mic Connector - TGR-SL-CABRJ4 
Radio Models 
Pin-out 
Notes 
JP-1 
FT-450 
FT-600 
FT-817 
FT-897 
FT-900 
Pin 1 – N/C 
Pin 2 – N/C 
Pin 3 – N/C 
Pin 4 – Mic GND 
Pin 5 – Mic 
Pin 6 – PTT 
Pin 7 – GND 
Pin 8 – N/C 
Receive Audio is not available on this connector. 
Check Other Listings for these radios - you may be 
able to use the DIN, PACKET, ACCESSORY, or 
DATA jack 
YAESU 
6-Pin Mini DIN Data Port Connector - TGR-SL-CAB6PM 
Radio Models 
Pin-out 
Notes 
JP-1 
FT-100/100D 
FT-450*** 
FT-817/817ND 
FT-840**/847** 
FT-857/897 
FT-950** 
FT-1500M 
FT-7100/7800R 
FT-7900R 
FT-8100/8500 
FT-8800R/8900R 
FTDX-1200 
FTDX-3000 
FTM-350** 
Check the SLMOD6PM 
 Jumper Module list 
Pin 1 – Data In 
Pin 2 – Ground 
Pin 3 – PTT 
Pin 4 – 9600 Out 
Pin 5 – 1200 Out 
Pin 6 – Squelch 
For special signals requiring un-filtered 
"discriminator" audio, you will need to move the 
"SPKR" jumper to pin #4 (9600 baud output). Note 
that some newer radios do NOT provide this output, so 
this may not apply to your radio. 
**FT-950 - Some users of this radio have reported that 
the Notch Filter is turned on after a hard reset. If you 
see a "hole" in your waterfall display, then please 
make sure that your Notch Filter is turned OFF. 
**On the FT-840 and FT-847 the 6 pin Data Port 
supports FM & LSB only. It may also function on only 
VHF (Not HF). 
**The FTM-350 requires Yaesu's CT-141 adapter to 
convert from it's (unusual) 8-pin mini-DIN connector 
to a standard 6-pin mini-DIN. This adapter should be 
available from any authorized Yaesu dealer. 
***NOTE:  If you are using an ICOM IC-7000, IC-746PRO, or Yaesu FT-450, please note that some customers have reported that these 
radios have unusually sensitive Data Ports, which can make adjustment of the SignaLink's TX knob somewhat difficult. If this is the case 
with your radio (and the solutions listed above don't work), then you can easily resolve the issue by replacing the SignaLink's "Mic" jumper 
wire with a standard 1/4 watt size resistor. Both a 47K and 100K resistor have been reported by several customers to allow easy adjustment 
of the power level. Please note that you **DO NOT** solder this resistor. It simply plugs into the JP1 socket in place of the MIC jumper 
wire. Be sure that you use a 1/4 watt size resistor, so that you do not damage the SignaLink's socket!  










