Wiegand mode.
1. Attach the cables according to the respective indicators on the communication and power
terminal block (AB-+ terminal block (lower terminal block )):
Reader
Controller
+
+12V
-
0V
B
Wiegand D1
A
Wiegand D0
2. Attach the cables on the LED, tamper, and horn terminal block (RY/TGH terminal block (upper
terminal block)):
Reader
Controller (Generic)
Controller (SPC)
Controller (ACT)
R
Red LED
VO1
Red
Y/T*
Tamper input
Zone Input (tamper)
1
Tamper input
1
G
Green LED
VA1
Green
H
Buzzer output
System Output
1
Buzzer output
1
*The Tamper output (default setting) connection may alternatively be configured to provide a
Yellow input to the reader. The Tamper output/ Yellow input options are mutually exclusive.
1
This connection is optional.
When the tamper output option is configured there is no yellow indication input. In this instance,
you can turn on the yellow indication LED by setting both the red and green indication inputs low.
Both the red and green indication LEDs are turned off at this time.
The buzzer is activated by setting the horn input low. The buzzer is deactivated by setting the horn
input high.
3. Insert the ridge on the end of the upper or lower terminal block into the corresponding slot.
© Vanderbilt 2021
18
A-100410-d
12.02.2021
Mullion Reader VR20 VR50 – Installation Manual
Mounting and connecting
