Planet Networking & Communication IAS-240, Руководство пользователя

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Appendix B
AT Commands
Required Settings
For the ISDN Access Server to function correctly, the modem
or ISDN TA must be set as follows.
Setting AT Command
Fixed baud rate setting AT&B1
RTS/CTS flow control AT&K3
DCD to track the presence of a carrier AT&C1
DTR off to hang-up modem AT&D2
DSR always on AT&S0
Modem to return modem-to-modem
data link speed ATX4
(see Note below)
•
For some Mircocom and other modems, the
“ATX4” command is not sufficient - a “W2”
command (no “AT”) must be used as well.
•
For an ISDN TA, the above commands may
not be sufficient. Please check the following
section or your ISDN TA's user manual.
For a modem which uses the standard AT commands shown
above, the
Initial String would look like the following:
AT&F&B1&K3&C1&D2&S0X4
The first command (AT&F) sets the modem to the factory
defaults, to ensure a consistent starting point.
B