Bit Stream - HID MaxiProx 5375A Installation Manuals

1248p 1248p 1248p1248p 1248p1248p 1248p1248p1248p1248p 1248p1248p1248p 1248p 1248p 1248p 1248p1248p1248p
<B> c000p Ccc0p CCC0p a000p dcb0p gfe0p jih0p mlk0p pon0p srq0p vut0p yxw0p BAz0p EDC0p HGF0p KJI0p
<F><LRC>
Case 2:
Customer Code
421 8421
CCC CCCC 1 aaaa bbbb cccc dddd eeee ffff gggg hhhh iiii
CCC CCCC
1
aaaa
bbbb
cccc
hhhh
iiii
The output from the Reader will look like the following:
1248p 1248p 1248p
<B> <aaaap> <bbbbp> <ccccp> <ddddp> <eeeep> <ffffp> <ggggp> <hhhhp> <F> <iiiip>
start data a
The message structure follows the ISO/ABA
(hex), which is followed by data. After the data there is an end sentinel:
The LRC is the xoring of the message in accordance to the bit position. Each character has an odd
parity bit that covers bit 1 to bit 4 of the nibble.
A typical message:
B 1 2 3 F LRC
1248p 1248p 1248p 1248p 1248p 1248p
11010 10000 01000 11001 11111 00101
B
start <

4.2.5 Bit Stream

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http://www.hidcorp.com
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= 74
are structured as follows:
8421 8421 8421 8421 8421 8421 8421 8421 8421
- Customer code
- fixed bit "1"
- Most significant nibble of message
- Second MSN
- next nibble
- least significant nibble of message
- LRC of nibbles aaaa to hhhh, start (B) and end sentinel (F) (xor of the nibbles or the even parity of the
respective column)
1248p 1248p
data b data c data d data e
the bits broken down:
1 2 3 F 4
data > end LRC
MaxiProx DFM Reader Installation Manual 5375-901 Rev D
1248p 1248p 1248p 1248p 1248p 1248p
data f data g data h end LRC
Track 2
standard. The first character is a start sentinel:
B
F
(hex), followed by an LRC.
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