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APPENDIX D: QUICK-REFERENCE SUMMARIES
DEFINITY Communications System
7400B Data Module
Page D-4
User’s Guide
Register
Description
Range/Unit
S0
Ring to answer on.
000-255 count
S1
Incoming ring count.
000-255 count
S2
Escape sequence character.
000-127 ASCII
S3
Carriage return character.
000-127 ASCII
S4
Line feed character.
000-127 ASCII
S5
Back space character.
000-032, 127 ASCII
S6
Not used.
—
S7
Wait time for call completion.
001-055 sec.
S8
Not used.
—
S9
Not used.
—
S10
Delay between lost line signal and hang up.
000-255 0.1 sec.
S11
Not used.
—
S12
Escape sequence guard time.
000-255 0.02 sec.
S13
Not used.
—
S14
Bit mapped options (see Appendix B).
00-FF hex.
S15
Not used.
—
S16
Test function status (see Appendix B).
00-FF hex.
S17
Not used.
—
S18
Diagnostic test duration timer.
000-255 sec.
S19
Not used.
—
S20
Not used.
—
S21
Bit mapped options (see Appendix B).
00-FF hex.
S22
Bit mapped options (see Appendix B).
00-FF hex.
S23
Bit mapped options (see Appendix B).
00-FF hex.
S24
Not used.
—
S25
DTR change detect time.
000-255 0.01 sec.
S26
Not used.
—
S27
Not used.
—
TABLE D-2 S-REGISTER SUMMARY