
Copyright 1999-2009, Barcode Automation, inc.
23
Connecting to the BA-220 DualBeam
Input/Output connections
The No Read and Good Read output terminals connect through
optional relays. The + Loop and - Loop connections are for an
optional input from a loop detector or other dry contact device.
The
+12VDC
terminal
is an output
and provides power to run
accessories such as an external modem.
It should not be used for
devices that need more than 500mA of current
.
The Ground terminals (both of them) connect to the BA-220
DualBeam electronic circuit ground.
The Wiegand Hold terminal is not implemented and should not be
connected.
Wiegand 1 and Wiegand 0 are the Wiegand communication terminals.
The Wiegand Isolator (Green case) module should be connected
here.
+NO READ
-NO READ
+GOOD READ
-GOOD READ
+LOOP
-LOOP
+12VDC
GROUND
WIEGAND HOLD
GROUND
WIEGAND 1
WIEGAND 0