Diamond SupraExpress 56e Manual page 67

The direction parameters are:
<direction>
0 No compression.
1 Transmit Only compression.
2 Receive Only compression
3 Bi-Directional compression.
<comp_neg>
0 Do not require V.42bis compression when connecting
<dict_size>
1024 V.43bis dictionary size for bi-directional compression.
2048 V.42bis maximum dictionary size for bi-directional
compression (default for all except the SUP1331).
4096 Maximum dictionary size for single direction compression
on a product except for the SUP1331, which supports it in
bi-directional compression mode (default for SUP1331).
<max_string>
6 to 64 Maximum V.42bis string size.
— The V.42bis dictionary size is fixed at 2048 for connections with bi-directional
NOTE
compression and 4096 for single direction compression.
+ES Error Control Selection
+ES? Returns Current Setting
+ES=? Returns Command Range(s)
+ES =<orig_rqst>,<orig_fbk>, ans_fbk>
(Omitted values remain at the current setting.)
+ES=<orig_rqst>,<orig_fbk>, ans_fbk> is similar to setting the &Qn (or
NOTE:
&Mn), S36, and S48 registers. When +ES? is used S80.4 is set (1). When &Qn (or &Mn) is
used S80.4 is reset (0). These values and S80 are saved in NVRM via &Wn.
The orig_rqst parameters are:
orig_rqst
0 Direct mode.
1 Buffered mode.
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