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6.
Place a mini-jump over one (1) pin of JP4; JP3 remains open.
7.
Add power to the reader and resume normal operations.
Setting the Communications Mode
(Native Mode)
In Native Mode, the reader uses a straight binary to BCD conversion of
the serial number to match the serial number given by the card
manufacturer.
The following steps are for setting the communications mode in Native
Mode.
NOTE: RS-232 mode for Revision B printed circuit boards and higher.
1.
Remove power from the reader.
2.
Place a mini-jump over both pins of JP4 and JP3.
3.
Add power to the reader and listen for the number of beeps.
NOTE: The number of beeps indicate current communications mode
set.
•
1 beep = Supervised F/2F
•
2 beeps = Unsupervised F/2F
•
3 beeps = Strobe
•
4 beeps = Unused
•
5 beeps = RS-232
4.
Push and release the tamper switch the number of times the
correspond to the communications mode desired.
NOTE: If you exceed the number of pushes listed below, an error
response will sound and flash. Simply repeat this step.
Modes:
•
1 push = Supervised F/2F
•
2 pushes = Unsupervised F/2F
•
3 pushes = Strobe
•
4 pushes = Unused
•
5 pushes = RS-232
Model 840/845 Contactless Smart Card Reader
11
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