TransCore 05531 User Manual
Encompass 4/4800 Multiprotcol Reader System Guide
4-28
Wiegand Interface
Wiegand interface signals are supplied by three wires from the Encompass 4/4800
Multiprotocol Reader communications cable. The Encompass 4/4800 Multiprotocol
Reader with RS
Multiprotocol Reader communications cable. The Encompass 4/4800 Multiprotocol
Reader with RS
–
232 or RS
–
422 comes with the Wiegand option built in. The Wie-
gand interface can only be used by the reader to output valid Wiegand tag reads. All
reader commands and responses are issued through the serial interface.
reader commands and responses are issued through the serial interface.
shows the Wiegand signals and the interface wires.
To connect Wiegand interface
1.
Connect the blue wire (data0) from the blue and red wire pair to the data0 wire of
the Wiegand device.
the Wiegand device.
2.
Connect the red wire (data1) from the blue and red wire pair to the data1 wire of
the Wiegand device.
the Wiegand device.
3.
Connect either the yellow or black wire from the yellow and black pair to the
Wiegand device’s signal ground.
Wiegand device’s signal ground.
Note: The RS
–
232 or RS
–
422 interface is still included on the Encompass 4/
4800 Multiprotocol Reader even when you use the Wiegand configuration. If
serial communication is not needed, TransCore recommends leaving the DB9 or
DB25 connected to the cable for future use.
serial communication is not needed, TransCore recommends leaving the DB9 or
DB25 connected to the cable for future use.
Warning
Do not cut the RS–232 red/black wires. If you cut the wires, you may not be able to
use them in the future for testing, setting frequency, or adding additional functions.
use them in the future for testing, setting frequency, or adding additional functions.
Connecting Sense Input and Sense Output Circuits
The Encompass 4/4800 Multiprotocol Reader has two sense input circuits and three
sense output circuits available. The sense input circuits can be used to notify the
Encompass 4/4800 Multiprotocol Reader of external events and are designed to be
sense output circuits available. The sense input circuits can be used to notify the
Encompass 4/4800 Multiprotocol Reader of external events and are designed to be
Table 4-9 Wiegand Interface Signal Wiring for Colored-Wire Pair Cable
Signal from Encompass
4/4800 Multiprotocol
Reader
Colored-Wire Pair Cable
Connect to
Signal from
Host
Wire Pair
from
Encompass
4/4800
Multiprotocol
Reader
Color Used
Wiegand Zero Output
Blue/Red
Blue
Data0
Wiegand One Output
Red
Data1
Signal Ground
Yellow/Black
Yellow or black
Ground