Radio, TNC & GPS Pinouts
MFJ Sound Card Radio Interface (1275/1275m)
|
1275
Header |
Jumper
IC729 |
Jumper
IC706(MkII(G)) |
Jumper
FT-817 (100D?) |
|
HD1
|
6
|
7
|
7
|
|
HD2
|
7
|
5
|
4
|
|
HD3
|
2,3,4,6,7,8
|
1,2,3,5,7,8
|
1,2,3,4,7,8
|
|
HD4
|
1
|
6
|
5
|
|
HD5
|
5
|
4
|
6
|
|
HD6
|
5
|
4
|
6
|
|
HD7
|
1
|
6
|
5
|
Trying to build an adapter to use my
MFJ-1275m with my Icom IC-729
|
8-pin Mic
|
Function
|
RJ45 Mic
|
|
1
|
TX (Mic)
|
6
|
|
2
|
||
|
3
|
Up/Down (470 Ohm)
|
2
|
|
4
|
||
|
5
|
PTT
|
4
|
|
6
|
Ground
|
5
|
|
7
|
Mic Ground
|
7
|
|
8
|
RX
|
3
|
| 5-pin DIN | Function |
|---|---|
|
1
|
Transmit Signal
|
|
2
|
Ground
|
|
3
|
PTT
|
|
4
|
Receive Signal
|
|
5
(some models) |
External Carrier Detect
|
| Some models have a separate connector for Receive Signal (speaker input). For example, Kantronics KPC-1 has an "Aud In" jack. | |

| DB-9 | Function |
|---|---|
|
1
|
Transmit Signal
|
|
2
|
External Carrier Detect*
|
|
3
|
PTT
|
|
4
|
N/C
|
|
5
|
Receive Signal
|
|
6
|
Ground
|
|
7
|
N/C
|
|
8
|
N/C
|
|
9
|
Ground
|
* Also used as RxD for software serial port on KPC3+ v8.3
Kenwood TM-D700 & TH-D7 GPS/Computer interface
Radio Shack 274-244 (straight) or 274-298 (right angle) plug
Radio Shack 274-244 (straight) or 274-298 (right angle) plug
| DB-9F | DB-9M | Function | Audio Plug (2.5mm) |
|---|---|---|---|
|
1
|
1
|
DCD
|
|
|
2
|
3
|
Tip
|
|
|
3
|
2
|
Ring
|
|
|
4
|
4
|
||
|
5
|
5
|
Ground
|
Sleeve
|
|
6
|
6
|
||
|
7
|
7
|
||
|
8
|
8
|
||
|
9
|
9
|
Adapter cable to make TNC2
look like a KPC3
look like a KPC3
|
DB-9
|
Function
|
5-pin DIN
|
|
1
|
Transmit Signal
|
1
|
|
2
|
External Carrier Detect
|
5
|
|
3
|
PTT
|
3
|
|
4
|
N/C
|
|
|
5
|
Receive Signal
|
4
|
|
6
|
Ground
|
2
|
|
7
|
N/C
|
|
|
8
|
N/C
|
|
|
9
|
Ground
|
Alinco DR-135T
DB-9 Pinout
| DB-9 | Function |
|---|---|
|
1
|
SQC squelch signal output.
|
|
2
|
9600 bps data out
|
|
3
|
9600 bps data in
|
|
4
|
1200 bps data out
|
|
5
|
Ground
|
|
6
|
N/C
|
|
7
|
PTT
|
|
8
|
5.0V dc max 50mA output
|
|
9
|
1200 bps data in
|
Adapter cable
KPC3 to DR-135 to TNC2
KPC3 to DR-135 to TNC2
|
DB-9
(KPC3) |
Function
|
DB-9f
(DR-135) |
5-pin DIN
|
|
1
|
Transmit Signal
|
9
|
1
|
|
2
|
External Carrier Detect
|
5
|
|
|
3
|
PTT
|
7
|
3
|
|
4
|
N/C
|
||
|
5
|
Receive Signal
|
4
|
4
|
|
6
|
Ground
|
5
|
2
|
|
7
|
N/C
|
||
|
8
|
N/C
|
||
|
9
|
Ground
|
5
|
Yaesu FT-2600M
DB-9 Pinout
DB-9 Pinout
| DB-9 | Function |
|---|---|
|
1
|
SQC squelch signal output.
|
|
2
|
9600 bps data out
|
|
3
|
9600 bps data in
|
|
4
|
1200 bps data out
|
|
5
|
Ground
|
|
6
|
N/C
|
|
7
|
PTT
|
|
8
|
5.0V dc max 50mA output
|
|
9
|
1200 bps data in
|
Adapter cable
KPC3 to FT-2600M to TNC2
KPC3 to FT-2600M to TNC2
|
DB-9
(KPC3) |
Function
|
DB-9f
(FT-2600M) |
5-pin DIN
|
|
1
|
Transmit Signal
|
9
|
1
|
|
2
|
External Carrier Detect
|
5
|
|
|
3
|
PTT
|
7
|
3
|
|
4
|
N/C
|
||
|
5
|
Receive Signal
|
4
|
4
|
|
6
|
Ground
|
5
|
2
|
|
7
|
N/C
|
||
|
8
|
N/C
|
||
|
9
|
Ground
|
5
|

Baofeng TRRS plug
|
3.5mm TRRS
|
Color |
Function
|
|
Tip
|
Red |
Speaker Out
|
|
Ring 1
|
White |
Mic in
|
|
Ring 2
|
Brown |
PTT
|
|
Sleeve
|
Black |
Ground
|
Argent Data T3 micro TRRS plug
|
3.5mm TRRS
|
Function
|
|
Tip
|
Audio Out (to Mic)
|
|
Ring 1
|
PTT
|
|
Ring 2
|
Audio in (from speaker)
|
|
Sleeve
|
Ground
|

|
3.5mm
|
Color |
Function
|
|
Tip
|
||
|
Ring
|
White |
Mic in
|
|
Sleeve
|
Yellow |
PTT
|
|
2.5mm
|
Color |
Function
|
|
Tip
|
Red |
Speaker out
|
|
Ring
|
||
|
Sleeve
|
Black |
Ground
|
Icom IC-729 8-pin Mic
Icom IC-706 RJ45 Mic
|
Mic
|
Function
|
|
|
1
|
TX (Mic)
|
|
|
2
|
||
|
3
|
Up/Down (470 Ohm)
|
|
|
4
|
||
|
5
|
PTT
|
|
|
6
|
Ground
|
|
|
7
|
Mic Ground
|
|
|
8
|
RX
|
Icom IC-706 RJ45 Mic
|
Mic
|
Function
|
|
|
1
|
8v (10mA)
|
|
|
2
|
Up/Down (470 Ohm)
|
|
|
3
|
AF Out
|
|
|
4
|
PTT
|
|
|
5
|
Ground
|
|
|
6
|
Mic
|
|
|
7
|
Mic Ground
|
|
|
8
|
Squelch
|
Details on the MiniDIN 6-pin "DATA" connector by Stephen H. Smith WA8LMF


Normal mini-DIN6 connections
pin function
1 data
2 (reserved)
3 gnd
4 +5v
5 clock
6 (reserved)
Kenwood PG-5A to KPC-3
| Mini-DIN6m | Function | DB9m | |
|---|---|---|---|
|
Brown
|
1
|
Mic
|
1
|
|
Red
|
2
|
Mic Gnd
|
6
|
|
Orange
|
3
|
PTT
|
3
|
|
Yellow
|
4
|
9600
|
|
|
Green
|
5
|
1200
|
5
|
|
Blue
|
6
|
Sql
|
Argent Data mini-DIN6 to KPC-3
| Mini-DIN6m | Function | DB9m | |
|---|---|---|---|
|
Grey
|
1
|
Mic
|
1
|
|
Brown
|
2
|
Mic Gnd
|
6
|
|
Green
|
3
|
PTT
|
3
|
|
Blue
|
4
|
9600
|
|
|
Red
|
5
|
1200
|
5
|
|
Yellow
|
6
|
Sql
|
|
| Only connect the Sql line if you know you need it. otherwise it may cause delays in packet transmission. | |||
Argent Data mini-DIN6 to TNC-2
| Mini-DIN6m | Function | 5-pin DIN | |
|---|---|---|---|
|
Grey
|
1
|
Mic
|
1
|
|
Brown
|
2
|
Mic Gnd
|
2
|
|
Green
|
3
|
PTT
|
3
|
|
Blue
|
4
|
9600
|
|
|
Red
|
5
|
1200
|
4
|
|
Yellow
|
6
|
Sql
|
5
|
| Only connect the Sql line if you know you need it. otherwise it may cause delays in packet transmission. | |||
Adapter for Holux GPS PS2 to Opentracker
| Mini-DIN6m | Function | DB9f | |
|---|---|---|---|
|
Grey
|
1
|
DGPS In
|
|
|
Brown
|
2
|
Data to GPS
|
3
|
|
Green
|
3
|
Ground
|
5
|
|
Blue
|
4
|
Data from GPS
|
2
|
|
Red
|
5
|
N/C
|
|
|
Yellow
|
6
|
+5VDC
|
4
|
Version 2.3.2-GSW2-2.05.024-C1Prod1.1
System Clock: 12.277MHz
Adapter for Deluo GPS PS2 to Opentracker
| Mini-DIN6m | Function | DB9f | |
|---|---|---|---|
|
Grey
|
1
|
Ground
|
5
|
|
Brown
|
2
|
Vext
|
4
|
|
Green
|
3
|
Data to GPS
|
3
|
|
Blue
|
4
|
N/C
|
|
|
Red
|
5
|
PPS
|
|
|
Yellow
|
6
|
Data from GPS
|
2
|
GPS 18 LVC pinouts
| DB9m | Function | DB9f | |
|---|---|---|---|
|
Yellow
|
1
|
N/C
|
|
|
White
|
2
|
Data to GPS
|
3
|
|
Green
|
3
|
Data from GPS
|
2
|
|
Red
|
Vext
|
4
|
|
|
Black
|
5
|
Ground
|
5
|
Maxon to KPC3 (OT, TT)
| Function | DB9f | Color | DB9m |
Function
|
|---|---|---|---|---|
|
Data in
|
1
|
White
|
1
|
Audio out
|
|
Data out
|
2
|
Green
|
5
|
Audio in
|
|
PTT
|
3
|
Yellow
|
3
|
PTT
|
|
Ground
|
4
|
Black
|
6
|
Ground
|
|
Vcc
|
5
|
Red
|
7
|
Vin
|
RS-232
| DB-9M | Function | |
|---|---|---|
|
1
|
DCD
|
Data Carrier Detect
|
|
2
|
RD
|
Receive Data
|
|
3
|
SD
|
Transmit Data
|
|
4
|
DTR
|
Data Terminal Ready
|
|
5
|
SG
|
Signal Ground
|
|
6
|
DSR
|
Data Set Ready
|
|
7
|
RTS
|
Request toSend
|
|
8
|
CTS
|
Clear to Send
|
|
9
|
RI
|
Ring Indicator
|
Holux GPS to D7 (D700) with 5VDC to GPS
Adapter Board

Connector cable
Maxon to OT+ (OT2, KPC3, etc.)
(Pins 7, 8, and 9 on the radio are for SD models not DM models)
Maxon to OT+ (OT2, KPC3, etc.)
(Pins 7, 8, and 9 on the radio are for SD models not DM models)
|
Function
|
DB-9m
Maxon |
DB-9
(OT+) |
Function
|
|
Volume Control
|
9
|
N/C
|
|
|
Chanel Select
|
8
|
N/C
|
|
|
Power +11.5v
|
7
|
N/C
|
|
|
Carrier Detect
|
6
|
N/C
|
|
|
Vcc+
|
5
|
7
|
Vcc
|
|
Ground
|
4
|
6
|
Ground
|
|
PTT
|
3
|
3
|
PTT
|
|
Audio Out (Sp)
|
2
|
5
|
Receive Signal
|
|
Audio In (Mic)
|
1
|
1
|
Transmit Signal
|
Pins 4&5 on the radio also have leads to powerpoles so that power can be provided to the radio and OT+.
Adapter cable
Kenwood HT Mic to T3 micro
Kenwood HT Mic to T3 micro
|
3.5mm
|
Function
|
Color
|
TRRS
|
|
Tip
|
|||
|
Ring
|
<-- Mic Audio
|
White
|
Tip
|
|
Sleeve
|
PTT
|
Yellow
|
Ring 1
|
|
2.5mm
|
Function
|
Color
|
|
|
Tip
|
Speaker Audio -->
|
Red
|
Ring 2
|
|
Ring
|
|||
|
Sleeve
|
Ground
|
Black
|
Sleeve
|
Adapter cable
Baofeng UV-3R TRRS Mic to T3 micro
Baofeng UV-3R TRRS Mic to T3 micro
|
UV3R TRRS
|
Function
|
Color
|
T3 Micro TRRS
|
|
Tip
|
Speaker -->
|
Red
|
RIng2
|
|
Ring 1
|
<-- Mic Audio
|
White
|
Tip
|
|
Ring 2
|
PTT
|
Brown
|
Ring 1
|
|
Sleeve
|
Ground
|
Black
|
Sleeve
|