Westermo IDW-90 AT User Manual

Page 24

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24

6620-3200

S0 – Number of Rings to Auto-Answer
S0 sets the number of the rings required before the modem automatically answers a call.
Setting this parameter to zero disables auto-answer mode.

0 

 No automatic call acceptance, acceptance of an incoming call is controlled 
by the data terminal (command ATA after RING)

1

Immediate call acceptance by the terminal adapter (default)

2..n 

 Call acceptance through the terminal adapter after n “RING ” messages.

Note:  The time between two ring messages can be configured using the  

IDW-90-configuration command “ringtimer “(default =5 sec.)

S1 – Ring Counter
Ring Counter (read only), S1 is incremented each time the modem detects a ring signal.

S2 – Escape Character
S2 holds the decimal value of the ASCII character used as the escape character.
The default value 43 corresponds to an ASCII '+'..

S3 – Carriage Return Character
S3 sets the command line and result code terminator character. Default: 13 Carriage 
Return

S4 – Line Feed Character
S4 sets the character recognised as a line feed. The Line Feed control character is output 
after the Carriage Return control character if verbose result codes are used. Default: 10 
Line Feed.

S5 – Backspace Character
S5 sets the character recognised as a backspace. The terminal adapter will not recognise 
the Backspace character if it is set to a value that is greater than 128 ASCII. This charac-
ter can be used to edit a command line. When the echo command is enabled, the modem 
echoes back to the local DTE the Backspace character, an ASCII space character and 
second Backspace character; this means a total of three characters are transmitted each 
time the modem processes the Backspace character.
Default: 8 (Backspace)

S6 – Dial delay
This S-register defines how many seconds the unit will delay a call attempt.
The timer starts counting after the ATD command has been sent to the adapter.

S7 – Wait time for Carrier
S7 sets the time the terminal adapter will wait for synchronization and also the time the 
analogue modem will wait for carrier. Default: 50 sec

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