Insys Modem 56k 4.1 m/UL 11-02-01-01-40.022 Manuale Utente

Configuration 

 

INSYS Modem 56k UL

 

10   Juni 

05

 

Data transmission on the remote line does not reset the counter. Idle connection control 
of the remote modem must be switched off for remote control therefore. 
Idle connection control is configured by AT command only. 

AT*S 

data transmission speed on serial line  

AT+IPR  

autobauding, baud rate (INSYS Modem 56k only) 

AT*U 

serial line protocol  

AT&K 

flow control between PC and modem  

ATE command 

echo 

AT&S DSR 

handling 

 

AT&C 

DCD (CT109) handling  

AT&D DTR 

(CT108/2) 

handling 

ATS11= 

Idle connection control (INSYS Modem 144/336 only) 

ATS15= 

Idle connection control (INSYS Modem 56k only) 

A comprehensive description of all AT commands and parameters is available in the ad-
dendum „command overview“. 

Error correction according to V.42 or MNP (1-4) standards enables the modem to recog-
nize and correct transmission errors by line disturbances. Transmission may be inter-
rupted without error correction. The type of error correction can be selected by the 
HSComm menu Configure 

Æ

Æ

. With the settings V.42 connec-

 and V.42 or MNP4 connection only connection is refused 

if the other modem does not support this error correction. 
For connections with the requirement of short answer times the setting buffered, no er-
ror correction

 avoids any delays by block transmission.  

Error corrected connections allow additional data compression. 
In unbuffered, bit-direct mode up all bits are transmitted without buffering, error correc-
tion or compression. The modem does not influence the transmission format in any way. 
Only the escape sequence (+++) is interpreted by the modem as long as the data format 
is up to 11 bits.