Microcom 466 Operator's Manual page 72

Bar Codes Chapter 8
PPPPPPPPP is the nine-digit numeric US Postal Code. (If using a 5-digit postal code, the last
4 digits must be 0.)
CCC is the three-digit numeric Country Code. (840 in the US)
SSS is the three-digit numeric Class of Service
A..A, B..B, C..C, etc. are variable-length alphanumeric fields separated by #1d. These fields
are optional according to the MaxiCode specification, but may be required in certain
applications.
PPPPPPPPP#1dCCC#1dSSS#1dA..A#1dB..B#1dC..C#04
Where the fields are the same as those described above.
Mode 3:
Mode 3 may have either of the following formats:
[)>#1e01#1dYYPPPPPP#1dCCC#1dSSS#1dA..A#1dB..B#1dC..C#1e#04
Where:
#1e is the ASCII RS character
#1d is the ASCII GS character
#04 is the ASCII EOT character
YY is the two-digit numeric year
PPPPPP is the six-character alphanumeric Postal Code.
CCC is the three-digit numeric Country Code.
SSS is the three-digit numeric Class of Service
A..A, B..B, C..C, etc. are variable-length alphanumeric fields separated by #1d. These fields
are optional according to the MaxiCode specification, but may be required in certain
applications.
PPPPPP#1dCCC#1dSSS#1dA..A#1dB..B#1dC..C#04
Where the fields are the same as those described above.
Mode 4:
Mode 4 may encode any string of up to 93 characters. Control characters are specified as
described above, but occupy only 1 character in the encoded string.
Mode 5:
Mode 5 may encode any string of up to 77 characters. Control characters are specified as
described above, but occupy only 1 character in the encoded string.
Mode 6:
Mode 6 may encode any string of up to 93 characters. Control characters are specified as
described above, but occupy only 1 character in the encoded string.
Code 128 (Automatic Compression, TCI=40), (Manual Compression, TCI-41)
Code 128 is a very high density, variable length, full alphanumeric bar code. It contains 3
separate character sets (A, B, and C) and separate shift characters to access them in the
same bar code. Subset C contains 99 matched numeric pairs, each encoded as a single
character. The pairing of numeric characters allows numeric portions of the bar code to
66 466 Operators Manual