User`s guide

166 DC 900-1340I
BSC Programmer’s Guide
To set this option using the DLI configuration file, use the dataTranslation parameter; for
example,
dataTranslation = “table1”. See Tabl e 7–2 on p ag e 191.
6.10 Station Priority Option (11)
This option enables the link to operate as a slave or as a master station. The purpose of
this option is to resolve any contention when both stations bid for the line at the same
time.
If the link is configured as a slave, the BSC 2780/3780 software bids for the line at a rate
equal to the length of the reply timer. If the BSC 2780/3780 software receives a simulta-
neous line bid, it aborts its own bid and accepts the bid from the remote station. If the
link is configured as a master, the BSC 2780/3780 software bids at a rate of one second
less than the reply timer length (Section 6.3). If the master station receives another bid
simultaneously, it ignores the received bid and the BSC 2780/3780 software continues
bidding.
To set this option using the DLI configuration file, use the stationPri parameter; for
example,
stationPri = “slave”. See Table 7–2 on page 191.
6.11 Space Compression Option (12)
When the space compression option is selected, the BSC 2780/3780 software performs
3780 space compression or space expansion on all non-transparent data blocks. On
transmitted blocks, the software replaces each group of two or more consecutive space
characters (up to 63) with an IGS (EBCDIC) or GS (ASCII) character followed by a
space-count character that defines the number of spaces removed. For a group of 64 or
more consecutive spaces, multiple IGS (GS)/space-count character sequences are used.
When the software receives data blocks, it deletes the IGS and GS characters and uses
the space-count character to replace the proper number of space characters.
To set this option using the DLI configuration file, use the spaceComp parameter; for
example,
spaceComp = “no”. See Table 7–2 on page 191.