CEStronics AccessOne TSG8 Assembly And Operating Manual page 13

5.1.5 Reader 1–4
For the connection of readers and wall terminals.
Set the jumper settings in accordance with the interface configuration (RS485/Wiegand).
No. Connection
1 12 V
2 GND
3 RS485-A / Wiegand D1
4 RS485-B / Wiegand D0
5 LED green
6 LED red
Door controller connection to wall terminal:
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Function
Power supply
Ground. The signal voltages are measured against this cable.
Ground. The signal voltages are measured against this cable.
Ground. The signal voltages are measured against this cable.