Patent ID: 11875671
Assignee: AXIS AB
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A controller for reading of both an RS485 data signal and a Wiegand data signal from a user connector having two output ports, the controller comprising:
an RS485 transceiver with two input ports, each of which being connected to a respective one of the two output ports of the user connector for reading one data signal on each of the output ports, and an output port for providing an RS485 data signal that is defined by the data signals read on the two output ports;
an RS485 interface with an RS485 data port connected to the output port of the RS485 transceiver for receiving the RS485 data signal;
a Wiegand interface with a Wiegand data port connected to the output port of the RS485 transceiver for receiving the RS485 data signal and a data ready port connected to the two input ports via a first logic circuit, comprised in the controller, for determining whether the RS485 data signal is to be read as a Wiegand data signal or not on the Wiegand data port.