1. Introduction:

The converter design for where request transfer data between Wiegand and Ethernet communication. It support 2 channel of Wiegand data (26bit, 34bit and 66bit data, especially for Wiegand card number) to host via TCP/IP network, the default transfer format based on ASCII as standard and HEX for optional, it can also transfer data from RS485 to TCP/IP. The device can widely use for two door access control system.

 Here are the connection details about two interfaces:

For Wiegand interface, it adopt 8pin interface, details as below form:

For TCP/IP (RJ45) interface: it adopt 10M/100M self-adaption interface, support AUTO MDI/MDIX, so you can connect the converter with your computer direction, and also can testing direct. There also have a DC power supply interface (as picture).

Here is the detail definition:

 The converter provides two power supplier interfaces, but can only choose any one of them for avoid any problem caused by voltage instability.

2. Technical Parameter

Size: 71mm x 25mm x 83mm

Weight: <100g, Color: black

Power supply: DC12V±5% 500mA for WG interface, DC5V for Ethernet (TTL)

Interface: Wiegand, RJ45 (10M/100M Ethernet), RS485

Wiegand interface: DC12V, GND, 1 D0, 1D1, 2 D0, 2 D1

Working currency: <130mA

Ethernet module: USR-K2 or USR-K3

Protocol: Wiegand, TCP/IP, RS485

Network protocol: support Ethernet, ARP, IP, UDP, TCP, etc.

Ethernet user name: admin, Password: admin, Default IP: 192.168.0.7

Network mode: TCP client\server (max for 4 Clients), UDP Client\Server, HTTDP Client

Network interface: RJ45 Ethernet (support 2KV Electromagnetic isolation)

Wiegand input format: 26bit, 34bit, 4bit, 8bit, or 66bit

Wiegand output format: 26bit 34bit, 8bit, or 66bit (can be set before ex-works)

Network input: ASCII (can be change to HEX when request)

Network output format: ASCII+0D+0A or HEX (for customized order)

Communication distance: max 100m (WG), max 1000m (RS485)

Power indicator: brightness when power on

Communication indicator: network set ok with green indicator

Working Temperature: -25~75℃

Storage Temperature: -40~105℃, Storage Humidity: 5%~95% RH

3. Communication Explain

3.1 Wiegand terminal output

Wiegand output support Wiegand 34bit as default. The converter get data from TCP/IP as the ASCII code from 0 to 4294967295, input max 4 bytes hex code.

The time interval of each byte is about 25ms, over 25ms, the converter start to transfer data as Wiegand 34bit, when converter only gets 1 byte of data, so we think it is a keypad input data, so it shall send out as Wiegand 8bit.

For example: converter get data: 31 32 33 34 37 38 and shall change these bytes to hex and send as Wiegand 34bit: 0001E256

Detail explain: Wiegand 34bit can send out hex max 4 bytes, so the max number of the converter input data change to hex is FFFFFFFF i.e. decimal: 4294967295 (total 10 digit, for ASCII that is 10 digit), so converter support the number from 0 to 4294967295 only.

If send as 26bit, so change to 255+65535 (FFFFFF), the number from 0 to 25565535.

The converter support digit max 4 bytes, consists of hex, if over the max number (based on Wiegand 34bit standard) , we shall intercept some part and send out.

For example: converter get data (ASCII) 31 32 33 34 35 36 37 38 39 30 31 32 33 34 35 total 15 bytes, change to hex is: 7048860DDF79, send out by Wiegand 34bit is 860DDF79, the upper part of the front (7048) shall intercept.

If only get one byte of data and delay over 25ms, so the converter think there is a keypad number, so the byte shall send out as Wiegand 8bits.

For example: converter get 32 (HEX), and over 25ms, so shall send out 32.

3.2 TCP/IP Ethernet output

The converter gets data from Wiegand interface and output as ASCII after decoding.

Format: (10 digit ASCII) +0D+0A

For example: get data 1E256 (HEX) from Wiegand interface so output data is:

30 30 30 30 31 32 33 34 37 38 0D 0A 

If get only one byte of Wiegand data (think it is keypad input), so output only one byte, there have no suffix 0D 0A. Here have two cases for running:

(1) Get 4bit data, so send the byte as ASCII direct.

(2) Get 8bit data, so send the byte as original shape.

For example: Wiegand interface get 4bit data 3 so converter output ASCII 33, get 4bit dat A, so converter output ASCII 41;

If Wiegand get 8bit data 45 (hex), so converter send data as original shape: 45 (hex). 

3.3 Wiegand input

  Support Wiegand 4bit, 8bit, 26bit, 34bit input

3.4 Wiegand output

Support Wiegand 8bit, 34bit input (8bit means keypad data)

If the transfer data more than 10 digital so we can provides Wiegand 66bit (it can max transfer 8 bytes (FF FF FF FF FF FF FF FF), max 19 digit numbers.