This FAQ is describing the basic knowledge around the use of the Wiegand Module.

Related FAQ describing the connection of External RFID card readers via the Wiegand interface

Wiegand - External RFID - How to connect external RFID old version reader to 2N IP Intercom

How to setup Wiegand together with the Access Unit

Wiegand module overview (9155037)

• The module contains two 2N^® IP Verso bus connectors.
• These two connectors are fully interchangeable and can be used both as inputs from the main unit and outputs to other modules.
• If this module is the last one on the bus, one of the connectors remains unconnected.
• The module package includes an 80 mm long interconnecting cable.
• The module name is configured in the Module name parameter in the Hardware / Extenders menu.

  • The input LED IN is addressed as follows: <module_name>.<input1>, e.g. module2.input1. 

  • The input Tamper is addressed as follows: <module_name>.<tamper>, e.g. module2.tamper.

  • The output LED OUT (negated) is addressed as follows: <module_name>.<output1>, e.g. module2.output1. 

Applications

There are basically two scenarios in which the Wiegand module can be used:

• Forward the information to the 3rd party Access control systems or other systems that are able to use the Wiegand interface and protocol.
• Accept the information from 3rd party RFID card readers or biometric data readers.

Description of the parameters

• Module Name – set the module name for input/output specification in the SetOutput and InputChanged/Output Changed objects in the Automation.
• Door – set the reader direction (Arrival, Departure) for the Attendance system purposes.
• Associated Switch – set the switch to be activated after user authentication via this module. If you set Door Lock Switch, the authentication rules specified in Hardware / Door will be used.
• Received Code Format – set the format for the codes to be received (Wiegand 26, 32, 37 and RAW).
• Output Wiegand Group – assign the output Wiegand to a group to which the codes from the connected card readers or Wiegand inputs can be resent.
• Transmitted Code Format – set the format for the codes to be transmitted (26-bit, 32-bit, 37-bit and RAW format, 35-bit, Corp. 1000, 48-bit, Corp. 1000 and Auto).
• Change Facility Code – set the first code part via Wiegand. This applies to Wiegand OUT for 26-bit code format. Contact your security system supplier to know if the Facility Code is requested.
• Facility Code – define the 2N IP device location in the security system. Enter a decimal value for the location (0–255). 

How does LED work?

Example 1

In our example, 2N^® IP Verso acts like a 3rd party system with all the users and 2N Access Unit 2.0 is the reader.
In automation for 2N^® IP Verso upon event UserAuthorized the LED OUT is activated and sends a signal to 2N Access Unit 2.0 to acknowledge that the card was accepted and is valid.
In automation for 2N Access Unit 2.0 upon receiving a signal from 2N^® IP Verso to LED IN(negated) the 2N Access Unit 2.0 will produce Access sound and sow green colour.

Example 2

In this example, 2N^® IP Verso or 2N Access Unit 2.0 acts as a reader and it is connected to the 3rd party system with two LEDs OUT (more info and which LED OUT is for valid or invalid signal would be described in the manual of the 3rd party controller).
In automation for 2N Access Unit 2.0 or 2N^® IP Verso upon receiving a signal from the 3rd party controller to LED IN (negated) and LED IN the device will produce sound and show the correct LED colour depending on if the card was determined as valid or invalid by the 3rd party controller.

 Automation for 2N® Access Unit 2.0 or 2N® IP Verso

Example 3

In this example, 2N^® IP Verso or 2N Access Unit 2.0 acts as a reader and it is connected to the 3rd party system with one LED OUT (typically sends a signal only if the card is valid) and you want to show both green (valid) and red (invalid) LED on the readers.
In automation for 2N Access Unit, 2.0 or 2N^® IP Verso upon swiping a card and receiving a signal from the 3rd party controller to LED IN(negated) the device will produce sound and show the green (valid) LED, but if the device does not receive any signal back after reading the card and sending it via Wiegand the 2N Access Unit 2.0 or 2N^® IP Verso will play the denied sound and show red (invalid) LED.

  Automation for 2N Access Unit 2.0 or 2N® IP Verso