| E.F.JOHNSON | ||
| model(s) | wire color | connection |
| messenger I messengerII hi-z(use an amplified mic only) |
Audio | white |
| Ground | shield | |
| PTT | black | |
| receive | red | |
| model(s) | wire color | connection |
| messenger 100 messenger 110 messenger 123hi-z(use an amplified mic only) |
Audio | audio |
| Ground | ground | |
| PTT | relay | |
| receive | speaker | |
| model(s) | wire color | pin number |
| messenger 223 hi-z(use an amplified mic only) |
Audio | 1 |
| Ground | 4 | |
| PTT | 3 | |
| receive | 2 | |
| model(s) | wire color | connection |
| messenger 351 messenger 111 messenger 300messenger 320 messenger 323messenger 323m hi-z(use an amplified mic only) |
Audio | white |
| Ground | shield | |
| PTT | relay | |
| receive | n/c | |
| model(s) | wire color | pin number |
| messenger 124 messenger 124m hi-z (use an amplified mic only) |
Audio | 1 |
| Ground | 2 | |
| N/C | n/c | |
| Common | 4 | |
| PTT | 3 | |
| receive | n/v | |
| model(s) | wire color | connection |
| messenger 120 messenger 121 messenger 210tmessenger 120a messenger 121ahi-z(use an amplified mic only) (not compatible with silver eagle plus) (insolate ground) |
Audio | white |
| Ground | red | |
| PTT | blue | |
| receive | black | |
| model(s) | wire color | connection |
| messenger 4135 messenger 132 messenger 123amessenger 123b messenger 123sjmessenger 125 messenger 323amessenger 4140 messenger 4145messenger 191 messenger 4120messenger 4230 viking 200messenger 122 (not compatible with silver eagle plus) |
Audio | White |
| Ground | shield | |
| Common | red | |
| PTT | Blue | |
| receive | Black | |
| model(s) | wire color | pin number |
| messenger 250 hi-z(use an amplified mic only) (not compatible with silver eagle plus) |
Audio | 1 |
| Ground | case | |
| PTT | 5 | |
| receive | 3 | |
| model(s) | wire color | pin number |
| viking 352 viking 352d messenger 4740hi-z(use an amplifeid mic only) |
Audio | 1 |
| Ground | shell | |
| PTT | 2 | |
| receive | n/c | |
| model(s) | wire color | pin number |
| messenger 130 messenger 130a messenger 132hi-z(use an amplified mic only) |
Audio | 1 |
| Ground | 5 | |
| PTT | 4 | |
| receive | n/c | |
| model(s) | wire color | connection |
| 121a | Audio | Audio |
| Ground | Ground | |
| PTT | Common | |
| receive | receive | |
| model(s) | wire color | pin number |
| messenger 4170 messenger 4175 viking 260viking 270 viking 230viking 430 messenger 40messenger 80 messenger 50hi-z(use an amplified mic only) (not compatible with silver eagle plus) |
Audio | 1 |
| Ground | 6 | |
| PTT | 5 | |
| receive | 3 | |
| model(s) | wire color | pin number |
| 4250 hi-z (use an amplified mic only) |
Audio | 2 |
| Ground | 6 | |
| PTT | 3 | |
| receive | n/c | |
| model(s) | wire color | pin number |
| messenger 4730 hi-z (use an amplified mic only) |
Audio | 1 |
| Ground | 5 | |
| PTT | 2 | |
| receive | n/c | |