One-dimensional bar codes
40
Bar code descriptor for RM4SCC British Royal Mail 4-State customer code symbol
3 Bar Pitch 20–24 (dec)
14–18 (hex)
22 (dec)
16 (hex)
Sets the number of bars that print per inch
4 Tracker Height 102–152 (dec)
66–98 (hex)
127 (dec)
7F (hex)
Sets the tracker height to 1/100 mm
5 Ascender,
Descender Offset
160–216 (dec)
A0–D8 (hex)
188 (dec)
BC (hex)
Sets the ascender and descender offset in
1/100 mm
The total height of an ascender or
descender is the sum of this field and the
tracker height.
6–15 Reserved — — —
Note: The bar code data sent with Singapore Post consists of either a 6-character or 4-character string.
Invalid characters or lengths are flagged with an error. String lengths of 4 characters imply a BRS license
number.
Byte Field name Range
Default
value
Description
0–1 Symbology ID — 22 (dec)
00 16(hex)
Selects British Royal Mail 4-State
customer code symbology
2 Bar Width 38–63 (dec)
26–3F (hex)
50 (dec)
32 (hex)
Sets the bar width to 1/100 mm
3 Bar Pitch 20–24 (dec)
14–18 (hex)
22 (dec)
16 (hex)
Sets the number of bars that print per inch
4 Tracker Height 102–152 (dec)
66–98 (hex)
127 (dec)
7F (hex)
Sets the tracker height to 1/100 mm
5 Ascender,
Descender Offset
160–216 (dec)
A0–D8 (hex)
188 (dec)
BC (hex)
Sets the ascender and descender offset in
1/100 mm
The total height of an ascender or
descender is the sum of this field and the
tracker height.
6–15 Reserved — — —
Note: All seven code formats are supported. The format is implied on the type of data received. Embedded
spaces and commas are allowed.
Byte Field name Range
Default
value
Description