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6287 ULTRA Users ManualPage 7-2
Translate Table Selection
The ULTRA determines the appropriate translation table to use based upon
both the users configuration of the ULTRA and the data stream it receives.
The output (ASCII or EBCDIC) is determined by the users configuration
of the ULTRA using configuration Option #10. Option #11 determines if
APL output is supported for DSC data streams when Option #10 is
configured for ASCII output and when Option #20 is configured for EAB
support.
The input is detected by analysis of the data stream by the ULTRA. When
an EBCDIC character from the host arrives at the ULTRA, it may be either
DSC or SCS data. See Section 14 SCS Data Streams and Section 15
DSC Data Streams for more information. The table to be used is selected by
the ULTRA by combining the information from the input and output
variables as follows:
Input:
If the data stream is ASCII (from an alternate host), the appropriate
translate table is 3 (for ASCII output) or 6 (for EBCDIC output).
If the coax host data stream is in DSC format, the appropriate
translate table is 1 (for ASCII output), 4 (EBCDIC output) or 7 (APL
output).
If the coax host data stream is in SCS format, the appropriate
translate table is 2 (for ASCII output), 5 (EBCDIC output) or 8 (APL
output).
Output:
If the ULTRA is configured for ASCII output, the appropriate
translate table is 1, 2 or 3.
If the ULTRA is configured for EBCDIC output, the appropriate
translate table is 4, 5 or 6.
If the ULTRA is configured for APL output (refer to Options 10, 11
and 20), the appropriate translate table is 7 or 8.