Datamax A-4310 Programmer's Manual page 208

Where:
Maximum 6 alphanumeric ASCII, international zip code
V6C3E2
Country Code
068
Class
001
G
1Z1...
S
R E
...T O
S T
An example of the UPS 3.0 zip + 4 "32707-3270" without Message data format and message header:
1u0000001200120327073270
G G G G R E
0.1 Y UT O
S S S S S
Where:
5 digit ASCII, Zip code
32707
4 digit ASCII, +4 Zip code (not required)
3270
Country Code
068
Class
001
G
1Z1...
S
R E
...T O
S T
U: UPS MaxiCode, Modes 2 & 3 with Byte Count Specifier
Specified Length – The upper case U identifies a UPS MaxiCode bar code with a 4-digit string length
specifier. This allows values 0x00 through 0xFF to be included within the data strings without
conflicting with the DPL format record terminators. The four-digit decimal data byte count
immediately follows the 4-digit column position field. This value includes all of the data following
the byte count field, but does not include itself.
<STX>L
D11<CR>
1U00000010001000051327895555840666this package<0x0D>is going to
Datamax<CR>
121100000000100Barcode U<CR>
E
From the example above, the bar code's data stream,
1U00000010001000051327895555840666this
package<0x0D>is going to Datamax, now includes a Byte Count
Specifier (the portion in bold), where 0051 equals the four-digit decimal data
byte count and includes all bytes that follow until the end of the bar code
data. Field termination is set by the byte count. <STX>, <CR>, and <0x0D>
all represent single byte values of hexadecimal 02, 0D, and 0D, respectively.
The UPS MaxiCode bar code produced encodes "327895555840666this
package<CR>is going to Datamax", and prints a line of text: Barcode U.
192
Appendix G – Barcode Details
G G
068 001
S S
T
G G
1Z12345675 UPSN
S S
Class Series Programmer's Manual
Primary Message
Secondary Message
G G G G
12345E 089 1/1
S S S S
Primary Message
Secondary Message
Barcode U
G
1
S