Wiegand WG26/WG34 to RS485 Converter Bidirectional Transmission RS485 to Wiegand converter

This WG-RS485 Converter adaptive WG26/WG34

Introduction

The converter supports two-way conversion between Wiegand model and 485 signal. The conversion process is automatically identified by the signal transmission direction.

No need to manually plug in the interface or other settings. Wiegand signal format supports standard WG26/WG34, 485 communication parameters 9600/N/8/1,

If you need to support other private Wiegand or 485 protocols, you can provide information for customization.

The converter uses a high anti-interference MCU processing chip, built-in watchdog circuit, and automatically detects the working status of the equipment,

Automatic reset when working abnormally, to ensure that the converter never crashes.

Converter 485 parameters:

Baud rate: 9600

Inspection: N

Data bits: 8

Stop bit: 1

Power supply voltage: 9-15V

Current: <30mA

Installation and use of converter

Dimensions: Shell 70×41×23mm

Converter real photos

Power connection:

The converter uses 9-15V/50mA power supply, and can directly use the 12V power supply of the Wiegand input port of the access controller.

The quiescent working current is about 20mA, and it can also be powered by an external 9-12v power adapter.

How to use 485 to Wiegand

2.1) Connect the signal wires of the converter A/B (485+/485-) and the 485 output device (such as 232/485 transcoder).

2.2) Connect the Wiegand interface D0/D1/GND of the converter and the corresponding Wiegand input device.

2.3) Send a 3-byte signal through the 485 device.

2.4) The Wiegand output port of the converter outputs Wiegand 26 signals.

485 bytes sent (each group)	Wiegand output protocol	Time interval for each group (minimum)
Less than 3	WG keyboard	200ms
3	WG26	200ms
4	WG34	200ms

How to use Wiegand to 485

3.1) Connect the converter D0/D1/GND and the corresponding Wiegand signal output device (such as IC card reader) signal line.

3.2) Connect the converter A/B (485+/485-) signal line.

3.3) Send Wiegand signal through Wiegand output device.

3.4) The converter outputs the corresponding 485 signal through the 485 port.

Wiegand output protocol	485 bytes sent (per group)
WG keyboard	1
WG26	3
WG34	4

Converter indicator light description

There are 3 indicator lights in the converter: red, green and blue

Red light on: normal operation, standby state.

Green light flashes: 485 signal comes in;

Blue light flashes: WG signal comes in;