RFL Electronics RFL 9660, Инструкция по эксплуатации, Страница: 60 / 312

RFL 9660 RFL Electronics Inc.
October 1, 1999 3-21 (973) 334-3100
3.10.7 SETTING SPECIAL PORT CONFIGURATION FUNCTIONS
The following function settings normally do not have to be changed. The factory default settings should work
with most substation devices. These special functions include the following:
o Remote String (future enhancement)
o Port String (future enhancement)
o Modem String (for changing the internal modem's configuration upon output selection)
If the Application Note or device manual indicates that any of these functions should be reset, use the following
procedure; otherwise, go on to the next procedure.
1.
If you need to enter a modem string, press the [F] and [ENTER] keys. If you don't need to enter a
modem string, go to step 4.
The following prompt will appear on your display:
Enter modem setup string (<=30 chars.): _
This selection lets you store a modem string for the port. This is a character string that
the port uses to send setup commands to the modem.
2.
Enter the desired modem string. The following control codes may be embedded into the modem string:
\N Insert a carriage return.
\D Wait until carrier is detected or 60 seconds has passed, If carrier is detected, pause for another
5 seconds.
\, Pause 5 seconds.
\. Pause 60 seconds.
\+ Pause five seconds, send the "+++" modem escape code, and then pause five more seconds.
This control code is used to send the escape code through one modem to another. (If you
inserted the "+++" escape code into the callback string, it would be intercepted by the first
modem, placing it in the command mode.)
\X "X" is a number from 1 to 9. The modem string will be repeated this many times or until a
carrier is detected. The the RFL 9660 will parse the remainder of the string.
A typical modem string is shown below:
\+AT\X1 O\,
\+ This tells the RFL 9660 to pause five seconds, send the "+++" modem escape
code, and then pause five more seconds.
AT\X1 This tells the modem to process XON and XOFF flow control characters, and
pass then through to the local or remote system. (See Section 13 for more
information on modem "AT" commands.)