The PTO2008-A1 provides two connectors ('X5' and 'RJ1') to connect the call stations. 'RJ1' uses a copper Ethernet cable (CAT5) for the connection.
Call station connectors - 'X5' and 'RJ1'
Pin | Description | Remark |
|---|---|---|
1 | SO- | Audio out - |
2 | SO+ | Audio out + |
3 | GND | GND reference voltage |
4 | D+ | RS485 data + |
5 | D- | RS485 data - |
6 | DC 24 V | DC 24 V (with 500 mA fuse) |
7 | SI- | Audio in - |
8 | SI+ | Audio in + |