The PTO2008-A1 provides two connectors ('RJ2' and 'RJ3') to connect the previous PTO2008-A1 to the next, with all necessary signals with copper Ethernet cable (CAT5).
Call station connectors - 'RJ2' and 'RJ3'
Pin | Description | Remark |
|---|---|---|
1 | SO- | Audio out - |
2 | SO+ | Audio out + |
3 | GND (DC 0 V) | GND reference voltage |
4 | D+ | RS485 data + |
5 | D- | RS485 data - |
6 | DC 24 V | DC 24 V |
7 | SI- | Audio in - |
8 | SI+ | Audio in + |