User manual

S-REGISTERS 5-3

S5 – Backspace Character

ASCII value for Backspace. Entering this will delete the character to the left of the

cursor (and the last character in the command memory) and the cursor moves one

space backwards.

Range: 0-32, 127; factory setting: 8 (ASCII Backspace)

S6 – Waiting Time for Dialling Tone

The value of the S6 Register determines when the modem will begin to dial after

“lifting the handset” (or after recognizing the W parameter in Dialling command

mode). The X command controls the effect of the S6 Register. For X0, X1 or X3,

the modem waits for the speciﬁed period, even if the dialling tone occurs earlier.

You can enter any value between 0 and 255 sec in this Register; however, the

modem will always wait a minimum 2 seconds, even if you enter a lower value.

Range: 5-40 seconds; factory setting: 10 sec

S7 – Waiting for Carrier Signal

Where the extended mode commands X3 or X4 are active (X4 is the factory setting),

the modem waits in Originate mode until the “Free” character is recognized (the other

connection is being called). The value of the S7 Register determines the duration of the

waiting period. In addition, the value of the S7 Register also determines how long the

modem will wait for a carrier signal from the remote modem, before it “hangs up”.

Since the modem also waits for a carrier signal, if it does not recognize a “Free” tone,

the total waiting time can be twice as long as the value set in the S7 Register.

When answering, the Register value represents only the waiting time for carrier-

tone recognition, since the “Free” character is of no importance here. Further, the

value of the S7 Register determines the waiting time for a subsequent dialling tone

(with no affect on the waiting time after the modem has “lifted the handset”), where

the W parameter is in Dial command mode. The subsequent dialling tone is used in

telephone systems, where a number is dialled beforehand to call the exchange.

Range: 0-60 sec; factory setting:40 sec

S8 – Pause Time after Comma

If a comma is included in the Dial command, the modem will pause when dialling,

when it reaches this character. The length of this pause is determined by S8.

Range: 0-10 sec; factory setting: 1 sec

S9 – Answer Time after Carrier Recognition

The period of time, during which the carrier from the remote station must be present, before

the modem goes on-line. A higher value decreases the risk of an incorrect interpretation.

Range: 1-255 1/10 sec; factory setting: 6 (0.6 s)