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TRANSLATE TABLES
General Information
The data stream from the coax host or alternate host is not sent directly
through the ULTRA to the attached printer. Rather, all characters must first
pass through the appropriate character code translation table, even if the
printer uses the same data format as the source device.
If the data formats of the two devices are different, a translation table is
selected that will convert the data from one format to another. The most
basic function of the ULTRA is to convert EBCDIC (or coax host) data to
ASCII data one byte at a time. Each translate table has 256 entries
numbered 00 to FF. When a character is received by the ULTRA, the
corresponding character from the appropriate translate table is substituted,
and that value is sent to the printer.
The ULTRA uses twelve translate tables that can be modified by the user
(although five are reserved). The tables are listed here with their table
access number or letter:
Table # Description
1 DSC to ASCII
2 SCS to ASCII
3 ASCII to ASCII (also used for the configuration report)
4 DSC to EBCDIC
5 SCS to EBCDIC
6 ASCII to EBCDIC (also used for the configuration report)
7 DSC to APL
8 SCS to APL
9 Reserved SCS font download table
A Reserved DSC font download table
B Reserved not used
C Reserved not used
Translate tables can be modified from the coax host or from an alternate
host. Refer to Section 9 Coax Host Configuration and Section 10
Alternate Host Configuration for information.
Note: Modifying translate tables should be attempted only by advanced
users with a clear understanding of how the translate tables function.
SECTION 7