A-2-1
Appendix 2
Programming cards
The 633-2 Programmer in the Decimal display format automatically
gives cards and tags the correct code format for use with the access
control system.
The security codes are as shown in the following diagram.
15-bit
Distributor
Code
16-bit
Secondary
Code
16-bit
card
number
Distributor Code flag Leading bit
Battery flag
LSBMSB
8 zero
bits
5 zero
bits
3-bit
issue
state
The Distributor Code is fixed and is automatically programmed into
the card by the 633-2 Programmer.
The Site Code must be set up on the 633-2 Programmer to match one
of the Site Codes you set up in the Software.
The Issue State occupies 3 bits and so can be set to any value from 0
to 7. If the Issue State of a card is changed, the cardholder record
must be amended in the Software to match. The unused 13 bits
around the Issue State are automatically programmed to 0 by the 633
Programmer.
The Card Number can be any number from 1 to 65,535 (decimal).
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