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WIEGAND TO RS485 CONVERTER BOARD [SSI-301-W]
WIEGAND TO RS485 CONVERTER BOARD [SSI-301-W] WIEGAND TO RS485 CONVERTER BOARD [SSI-301-W] WIEGAND TO RS485 CONVERTER BOARD [SSI-301-W]

Wiegand Interface Board

Wiegand Interface Board

SSI-301-W
WIEGAND TO RS485 CONVERTER BOARD
Discontinued
Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE

Overview

The SSI-301-W is a board designed to connect Wiegand compatible devices to the RS-485 reader network used by the SDC-5x0 controllers, and the SEB-720 Remote IO board. This unit is power isolated, allowing the Wiegand device to have its own power supply without causing grounding issues on the network side of the device. This means that it has to be powered from a 12Vdc power source on both the RS-485 side of the device and from the Wiegand device side separately for the isolation to be effective. The RS-485 side of the power can be taken directly from the controller depending on the distance of the cable.

This device has been designed to be used with the following devices:

  • SDC-5x0 controller board (Primary purpose).
  • SEB-720 Remote IO board
  • Any 3rd party Wiegand compatible device

It mimics a proximity reader on the RS-485 side and has a Wiegand host connection on the other side, which allows it to translate data between the two standards.

The unit is addressed on the RS-485 reader network using the rotary dipswitch. There are two LEDs to indicate the status of the device. When the CPU light is flashing rapidly, then the network communications to the controller has been established, when it flashes slowly the device is working, but the network connection has not been established.

The READ light indicates when a Wiegand number has been received from the Wiegand interface.

Specifications

Power requirements

  • Operating Voltage (DC) : 9 to 14 VDC
  • Current : 30 mA

Environmental characteristics

  • Operating Temperature : 0°C to +70°C
  • Storage Temperature : -10°C to +80°C

Digital Outputs (Wiegand)

  • Specification : Open collector transistor output with 4k7 Pull-up Resistor to 5Vdc.
  • Max Voltage on terminal : -2 to 20V referenced to ground
  • Max Load : 100mA at 5Vdc

Inputs

  • Specification : TLL input with 4k7 Pull-up Resistor to 5VDC.
  • Max Voltage on terminal : -10 to +20V referenced to ground
  • V Input Low : < 1V
  • V Input High : > 3V

Wiegand Encodings

  • Wiegand Length : 34 bits (32 bits data)/26 bits (24 bits data)
  • Site Code Length : 0 bits (No site code)
  • Start Parity Bit : Even parity over the first half of the data bits
  • Stop Parity Bit : Odd parity over the last half of the data bits

Additional Information

Voltage 9VDC to 14VDC
Current 30mA

Downloads

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