
Copyright 1999-2009, Barcode Automation, inc.
13
What Wiring do I need?
For most applications, there are three basic ways to use the BA-220
DualBeam Reader.
In this situation, the BA-220 DualBeam reader acts as the Access
Control. Barcode decal numbers are programmed into the reader and
set to grant or deny access based on the individual number. The
reader can be programmed via a laptop computer or an optional
modem tied into a phone line. When vehicles pass by the BA-220
DualBeam reads the barcode and checks to see if that number has
access. If access is granted the Good Read relay contact closes to
open the gate. If access is denied the gate does not open and an
optional No Read relay contact will close that can be connected to an
indicator or alarm to indicate that access is denied.
Wiring Needed:
• 2 conductor 18 AWG from reader to gate operator
• 3 conductor for AC power connection (follow local electrical codes)
• 2 conductor 18 AWG for 24VDC power connection
Optional:
Shielded 3 conductor 18 AWG for connecting RS232 serial port of
reader to computer. Distance should not exceed 100 feet.
115VAC
or
24VDC
2 wires for relay contacts
♦ BA-220 DualBeam reads the barcode and if Valid closes relay contacts to Open Gate
♦ Up to 100,000 different label numbers can be programmed
♦ Configure the BA-220 DualBeam with a Laptop Computer
♦ Change access control database with Laptop
As a Stand Alone Access Control
Gate
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