Appendix A: Message Export Description
*ff = These data bytes include the following:
15 bits of Bit sync (1111 1111 1111 111)
8 bits of Format sync (0 0010 111)
1 bit of Initialization (1)
3 bits of Number of Groups (xxx)
1 bit of Even or Odd Parity on Groups (x)
** The three error messages are as follows:
a. “
Length err
or”
This indicates that the length of the actual message received was longer or
shorter than the message length indicated by the three bit message length indicator which was
transmitted.
b. “
Len
gth
P
a
r
i
ty
Err
or”
Indicates that the three bit message length parity bit had an error.
c. “
ID CRC Err
or”
Indicates one or more errors was detected in the analysis of the ID code,
as a result of the use of the error correcting code, transmitted with the message. In such an event, the
ID code displayed (If an ID was displayed), is highly likely to be in error and should not be believed.
PB007326 Rev E
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