3. Activate the Tamperby removing the back plate.
4. Remove OSDP Jumper 1.
5. Power up the reader.
The reader beeps an affirmation tone and the RED indication led flashes each second.
6. Power down the reader.
7. Disconnect Red input and Tamper connection.
8. Power up the reader.
The reader now operates in 26 Bit Wiegand mode regardless of the setting of Jumper 2.
5.12.1 Re-programming a reverse mode transmission reader away from 26 Bit Wiegand
To reverse the reader out of 26 Bit Wiegand mode and to use the setting of Jumper 2 to determine Wiegand
Bit mode operation, follow the steps below:
1. Connect Red input to the Tamper
2. Remove Jumper 2.
3. Activate the Tamper by removing the back plate.
4. Remove OSDP Jumper 1.
5. Power up the reader.
The reader beeps an affirmation tone and the RED indication led flashes each second.
6. Power down the reader.
7. Disconnect the Red input and the Tamper connection.
8. Place Jumper 2 in the appropriate position for the number of Weigand bits (upper position for 32 Bit,
lower position for 56 Bit, and remove for 37 Bit).
9. Power up the reader.
l
The RED indication LED flashes twice if the reader is configured for 26 Bit Wiegand operation.
l
The GREEN indication LED flashes twice if it is configured for Reverse transmission mode.
l
Both The RED & GREEN indication leds flash twice simultaneously if the reader is configured for
Reverse transmission mode and 26 Bit Wiegand operation.
5.13 Default Configuration Card
The Default Configuration card configures the reader for
o
Standard Wiegand transmission mode
o
Wiegand bit mode dependent on Jumper 2
o
ACT MIFARE card printed number on card
o
DESfire UID.
5.13.1 37 Bit Wiegand.
37 Bit Wiegand operation is compatible with ACT MIFARE / DESfire readers.
Mullion Reader VR20 VR50 – Installation Manual
Mounting and connecting
© Vanderbilt 2021
25
A-100410-d
12.02.2021
