Westermo IDW-90 AT User Manual

Page 66

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66

6620-3200

Table 5 Dial and Transparent IO connection types

Connected  Data 1 

prio 

Line Type

No 

Empty 

No 

LL 

Illegal.

No 

Empty 

Yes 

LL 

Illegal.

No 

Number  No 

LL 

Illegal.

No 

Number  Yes 

LL 

Illegal.

Yes 

Empty 

No 

LL 

 Normal Transparent IO over leased line.  
See Note 1

Yes 

Empty 

Yes 

LL 

 Normal Transparent IO over leased line.  
See Note 1

Yes 

Number  No 

LL 

 Normal Transparent IO over leased line,  
number discard. See Note 1

Yes 

Number  Yes 

LL 

 Normal Transparent IO over leased line,  
number discard. See Note 1

No 

Empty 

No 

CS 

Error, try to establish service failed.

No 

Empty 

Yes 

CS 

Error.

No 

Number  No 

CS 

Normal Transparent IO over Circuit switched. 

line
No 

Number  Yes 

CS 

Normal Transparent IO over Circuit switched. 

line
Yes 

Empty 

No 

CS 

 Use current connection for I/O transfer. 
The Empty data 1 will override priority.  
See Note 1

Yes 

Empty 

Yes 

CS 

 Use current connection for I/O transfer.  
See Note 1

Yes 

Number  No 

CS 

 Due to that line is busy and no priority set  
the modem will retry connection according  
to <flag>.

Yes 

Number  Yes 

CS 

Disconnect and dial Number.

LL = Leased line PSTN or ISDN
CS = Circuit switched PSTN, ISDN or GSM

Note 1  The existing data connection will be paused during transparent IO transfer.  

The modem will use the flow control specified by flow control command. If no 
flow control set DTE data will be discarded during the Transparent IO transfer. 
When the transparent IO transfer is terminated by timeout the connection will 
revert to data-mode and activate CTS / sending XON.

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