Multitech ISIHI-2S User Manual page 80

S1 Ring Count
Unit: 1 ring
Range: 0–255
Default: 0
Counts number of rings that have occurred. It is a read type of register and is seldom used in
typical operation. Each time an incoming ring signal is detected, S1 increases its value by one,
up to a maximum of 255. If you set S1 to a value other than its default value of zero, or if the
value is increasing with rings, this new value remains stored in S1 for eight seconds after the
last ring is counted, after which the value reverts back to zero.
S2 Escape Code Character
Unit: Decimal
Range: 0–255
Default: 43 (+)
Defines escape code character by its decimal ASCII code. Default character is the plus (+)
sign (decimal 43). S2 can be set for any ASCII character. Setting an S2 value greater than 127
results in no escape character, resulting in no means of entering command mode from online
mode without breaking the online connection unless you use the BREAK method.
Note: If you change the S2 value, you must make corresponding changes in your data communications
software.
S3 Return Character
Unit: Decimal
Range: 0–127
Default: 13 (^M)
Defines carriage return character by its decimal ASCII code. Default setting is the ^M
character (decimal 13), the code for ENTER on most keyboards. Can 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)
Defines the line feed character by its decimal ASCII code. Default setting is ^J (decimal 10),
the code for the line feed key on most keyboards that have such a key. Can be set for any
ASCII character.
S5 Backspace Character
Unit: Decimal
Range: 0–127
Default: 8 (^H)
Chapter 5 - AT Commands
80