Reader Installation
© 1999, AXCESS
TM
Inc.
750.001.003
Revised June 1999
23
Installation of a Wiegand Reader
Required Materials
•
Black, white and green wire of sufficient length to connect the
Reader to the Wiegand control panel. With 22-gauge wire, 200
feet of wire can be run. With 18 gauge, 500 feet can be run.
•
A very small flathead screwdriver
Wires from Wiegand
Control Panel
Ribbon-cabled to UniLon Output
Card in PCB stack
Data Zero
Green
24V
G
D0
D1
G
Figure 8 Wiegand Reader connections
Connecting the Wiegand Reader to a Wiegand Control
Panel
Note: Although the Wiegand Reader has a serial output, it cannot be
converted to a Serial Reader. The serial output can only be used for
Reader configuration and diagnostics.
Step 1:
Install the Wiegand control panel according to the
instructions provided with that unit.
Step 2:
Open the Reader case and disconnect the BNC connector
running from the Transmitter card at the TX connector
(Figure 6). This will give you access to the terminal block
underneath.
Step 3:
Loosen the white terminal block by unscrewing it. This will
give you access to the terminals.
Step 4:
The ground connection protects against any differential in
voltage potential at each ground plane that may cause
current to flow between the external panel and the Reader.
Such a condition could damage and/or impact the
performance of either or both units.