IDTECK Star SR10, User Manual, Page: 11 / 16

11
10-5. 4-byte (34bit) / 3-byte (26bit) selection:
The reader outputs the serial number of a card which is a 4-byte number. It is possible to
make the reader send only 3 bytes with the most significant byte trimmed off. It is useful when
there are controllers which deal with 3-byte data only as most of existing controllers do.
For 3-byte outputs, connect the 34-bit / 26-bit selection input (Gray wire) to ground.
※
Caution: It is unavoidable that some card numbers are duplicated in 3-byte output.
e.g.)
34bit – 0x21 0x97 0x32 0xBC : Hexa
0563557052 : Decimal
26bit – 0x32 (FAC) 0x97 0x21 (ID number) :Hexa
050(FAC) 38689 (ID number) : Decimal