Westermo IDW-90 AT - Manual (Page 66)

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 .
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.