XT-3 Reader Installation Manual & Data Sheet Doc no. 11-267 02
© TagMaster NA 22 (28)
between shielding, power lines or other interfaces. The common GND connection in J2
and J41-J43 is a floating reference ground for the interface block signals. This makes it
possible to operate the interface with the voltage potential set from the other party. The
reference ground is internally connected to the chassis via a discharge resistor to avoid
static voltage potential. It has no other reference to connections outside the interface
block.
The USB port GND is connected to the chassis.
The Wiegand/Mag-stripe interface, the Isolated Inputs, and Isolated Outputs have a
varistor protection that will short-circuit signals over rated maximum 30 V.
Shielded Cable
Isolated
DC/DC Converter
Reader Electronics
Optoisolated
Interface Block
Shielded Cable
Isolated I/O
06-237 01
Figure 8 Figure shows the principal galvanic isolation
5.3 Performance Data
5.3.1 Communication range data
Note: Read and write ranges depend on tag-model and physical environment!
5.3.1.1 XT-3 eu
Parameter Value Unit
5 m
Read range
16 Ft
4 M
Write range
13 Ft
5.3.1.2 XT-3 us
Parameter Value Unit
6 m
Read range
20 ft
5 m
Write range
16 ft
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