Multi Tech Equipment ISIHI-2S Note: If you change the S3, value, you must make corresponding changes in your data communications software., , Note: If you change the S5, , value, you must make corresponding changes in your data communications software.

84 MultiModemISI Hybrid Series, ISIHI-2S
Chapter 4—MODEM AT Commands, S-Registers, Result Codes
Modem
S3 Return Character
Unit: Decimal
Range: 0–127
Default: 13 (^M)
S3 defines the carriage return character by its decimal ASCII code. The default setting is
the ^M character (decimal 13), which is the code for ENTER on most keyboards. S3 may
be set for any ASCII character.
Note: If you change the S3 value, you must make corresponding changes in your data
communications software.
S4 Line Feed Character
Unit: Decimal
Range: 0–127
Default: 10 (^J)
S4 defines the line feed character by its decimal ASCII code. The default setting is ^J
(decimal 10), which is the code for the line feed key on most keyboards that have such a
key. S4
may be set for any ASCII character.
S5 Backspace Character
Unit: Decimal
Range: 0–127
Default: 8 (^H)
S5 defines the backspace character by its decimal ASCII code. The default setting is the
^H character (decimal 8), which is the code for BACKSPACE on most keyboards. S5
may be
set for any ASCII character. Setting S2 to a value greater than 32 disables the backspace
character.
Note: If you change the S5 value, you must make corresponding changes in your data
communications software.
S6 Wait Time for Dial Tone
Unit: 1 second
Range: 2–65 (North America), 4–255 (International), 4–7 (U.K.)
Default: 2 (North America), 4 (International and U.K.)
S6 defines the length of time the modem waits after ENTER is pressed before executing a
dial command. The default setting is two seconds for North America, four seconds
elsewhere.
S7 Time to Wait for Carrier
Unit: 1 second
Range: 1–255 (USA), 1–45 (Canada and International), or 1–55 (U.K.)
Default: 50 (North America and International) or 55 (U.K.)
S7 determines amount of time the modem waits for a carrier signal before it disconnects.
The default value is 50 seconds except the UK model, which defaults to 55 seconds. This
means that after dialing the modem waits for a carrier signal for up to 50 or 55 seconds
and if none is detected terminates the call. The maximum S7
value is 255 seconds for
the US model, 45 seconds for Canadian and International models, and 55 seconds for
the UK model. S7 also determines the wait for silence time for the @ dial modifier.