Trig TY-91
Compact VHF Tranciever
Resources
- Manufacturer Website
- Installation Manual: Trig Avionics/00839-00-AG TY9x Installation Manual.pdf
- Operating Manual: Trig Avionics/00840-00-AD TY91 and TY92 VHF Radio Operating Manual
Technical Information
- 11-33v Input
- 3.2A maximum current (pg 6 installation manual)
- DB25 Male Connector
- 5A circuit breaker is suggested for power (pg 20 installation manual)
- 20G wire is suggested for power (pg 21 installation manual)
Pin Information
The TY-91 is actually two components, a remote mount module and a control head. The Trig manual references the control head as TC90, thus pins will be identified as TC90.# for control head, and TY91.# for the main module.
Main Module
Module contains a DB-25, Male Connector. Harness will need a DB-25 Female. I have only listed the pins of interest for my installation.
| Pin | Description |
|---|---|
| 3 | TMAP1A - Control Head communication |
| 4 | TMAP1B - Control Head communication |
| 9 | Ground |
| 10 | Headphone Ground |
| 11 | Headphone Out |
| 12 | Controller Power (remote head) |
| 13 | Power On |
| 14 | PTT Key 2 |
| 15 | PTT Key 1 |
| 17 | Intercom Key |
| 19 | Ground |
| 20 | Aux Audio |
| 21 | Microphone 2 |
| 22 | Ground |
| 23 | Microphone 1 |
| 24 | Aircraft Power |
| 25 | Aircraft Power |
When the Intercom Key (#17) is grounded, the intercom is enabled. Some place a switch to enable or disable the intercom, others ground it directly and the intercom is always enabled.
Control Head
Control Head contains a DB-15 Male. Harness will need a DB-15 Female.
| Pin | Description |
|---|---|
| 2 | TMAPA - Remote Module |
| 3 | TMAPB - Remote Module |
| 8 | Remote ON |
| 9 | Power IN |
| 10 | Power Ground |