Perle Systems CSS manual Failure-string, Response-delay, Signals dcd, Signals dtr, Signals rts

Line Service Commands

failure-string

String that is sent to the serial device when a connection fails. If no string is entered, then the string NO CARRIER will be sent.

host

The target host name.

init-string

You can specify additional vmodem commands that will affect how vmodem starts. The following commands are supported: ATQn, ATVn, ATEn, ATS0, AT&Z1, AT&Sn, AT&Rn, AT&Cn, AT&F, ATS2, ATS12, and ATDS1.

See VModem Initialisation Commands in the IOLAN User’s Guide for a more detailed explanation of the support initialisation commands.

mode

Auto mode establishes the connection when the line becomes active. You must supply the AT command or phone number that will start the connection; see Set Vmodem-Phoneon page 89 for the command parameters to set the AT command or phone number.

port

The port number the target host is listening on for messages.

response-delay

The amount of time, in milliseconds, before an AT response is sent to the requesting device. The default is 250 ms.

signals dcd

Controls the state of the DCD signal.

zalways-high = DCD signal will always stay high.

zfollow-connection = DCD signal will be high when an end to end connection is established and low when it is not.

Since the IOLAN does not have a physical DCD pin, you need to re-map the DTR or RTS signal to DCD to have the signal present. (see next option).

signals dtr

You can specify how the DTR signal pin acts during your modem application connection, as itself (DTR), as DCD, or as RI.

signals rts

You can specify how the RTS signal pin acts during your modem application connection, as itself (RTS), as DCD, or as RI.

Line Commands 87