Appendix A: Pinouts
GPIO 1 (Relay 1 &2)
GPIO 2 (Relay 3 & 4)
Suggested wiring for a footswitch
| GPIO-DB9 pin 4 (input A1) | GPIO-DB9 pin 9 (+12V) | link (jumper) wire |
| GPIO-DB9 pin 5 (input B1) |
footswitch | |
| GPIO-DB9 Shell (0V) |
footswitch | |
Clear-Com 2-Wire XLR Pinout
RTS 2-Wire XLR pinout
| 1 | Data in + | Data out + |
| 2 | Data in - | Data out - |
| 3 | Audio in + | Audio out + |
| 4 | Audio out + | Audio in + |
| 5 | Audio out - | Audio in - |
| 6 | Audio in - | Audio out - |
| 7 | Data out + | Data in + |
| 8 | Data out - | Data in - |
| Pin 1 | DECTSYNC IN + | DECTSYNC OUT + |
| Pin 2 | DECTSYNC IN - | DECTSYNC OUT - |
| Pin 3 | 8 KHZ IN + | 8 KHZ OUT + |
| Pin 6 | 8 KHZ IN - | 8 KHZ OUT - |
Caution: Shielded Cable Requirement
Shielded Cable is required for ALL FreeSpeak and GPIO port connectivity. CAT 5e Shielded Cable must be used to assure compliance with domestic and international emissions standards. Customers, Installers and or qualified Personnel failing to use shielded cables may cause radio interference in which case the user may be required to take adequate measures.
GPIO pinouts