4.3.3. Connection of peripheral devices
Peripheral devices can be connected to the GT7.3x27 via the RS-485 and Wiegand interface.
The RS-232 interface is used for the connection to the barcode reader and this wiring should not be disconnected.
Table 4. RS-485 - Connection of external bus-capable devices
Group | Terminal | Signal | Wire Colors |
|---|---|---|---|
RS-485 | VOut | Supply voltage for peripheral device (DC 24 V) | white/brown & brown |
A | Data line A | blue | |
B | Data line B | white/blue | |
GND | Ground | white/green & green |
Table 5. Wiegand - Connection of external readers with Wiegand protocol
Group | Terminal | Signal |
|---|---|---|
Wieg. | D1 | DATA1 |
D0 | DATA0 |