Siemens SIMATIC TS Adapter IE, Manual

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Error diagnostics
8.5 Malfunctions when establishing an outgoing call
TS Adapter IE
74
Manual, 11/2010, A5E00977705-03
8.5.3 The connection establishment fails
Diagnostics
The modem connection is made, but the PPP connection establishment fails. The DCD LED
on the TS Adapter IE or on the external modem lights up and goes out again.
Remedy
1. Check the user name and password in the "Parameters > Outgoing Calls" tab.
2. If you are using an ISDN connection, make sure the B-channel settings of the two ISDN
TAs match.
3. Now do the following, depending on the connection type:
Connection via internal modem Connection via an external ISDN TA
Connection to an ISP In the "Parameters > Modem > Internal
Modem" tab under the outgoing call
protocol parameters, set HDLC-PPP or
HDLC-transparent.
In the "Parameters > Modem > External Modem"
tab under "Initialization 3", specify an AT
command which presets the B-channel protocol
HDLC-PPP or HDLC-transparent on the ISDN
TA. You will find the appropriate command in the
manual for your ISDN TA.
Connection to a dedicated
dial-up server
In the "Parameters > Modem > Internal
Modem" tab under the parameter for
outgoing call protocols, make the same
setting you made on the ISDN TA of
your dial-up server.
In the "Parameters > Modem > External Modem"
tab under "Initialization 3", specify an AT
command which presets the same B-channel
protocol as you set on the ISDN TA on your dial-
up server. You will find the appropriate command
in the manual for your ISDN TA.