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- #: 44040 S1/Forum Help [CBMAPP]
- 25-Sep-97 18:54:15
- Sb: settings
- Fm: Jeffrey Starai 76352,2460
- To: [F] Sid Davis 102541,420
-
- Here are the changes to the Desterm setup for working with high-speed
- modems. You also have to change the modem setup, enabling software flow
- control (XON/ XOFF), disabling hardware flow control (RTS/CTS) and setting to
- "locked baud ra e" or "locked port rate" or "fixed serial port rate".
-
- -Protocol settings
- -Baud rate = 38400 for Swiftlink, Commport and Turbo 232, and 57600
- for Hartcart.
- -XON/XOFF = Yes
-
- -Modem settings
- -Hayes/1670 setup
- -Max baud rate = 38400 for Swiftlink, Commport and Turbo 232, and
- 57600 for Hartcart.
- -Set connect rate = No
- -Initial sequence = See below
-
- -Transfer options
- -Incoming XOFF = Honour
-
- -Phone list
- -Baud rate = Max or 38400 for Swiftlink, Commport and Turbo 232, and
- 57600 for Hartcart.
-
- The initialization strings below configure the modem:
-
- For US Robotics Sportster modems:
- ATZ^m~~~AT &B1 &H2 &I2 &R1^m
-
- For Boca and other modems using the Rockwell chipset:
-
- ATZ^m~~~~AT &K4^m
-
- You can also save the configuration to the modems NVRAM and use just ATZ^m
- as the initialization string.
-
-
- Sometimes when you try to upload a file the transfer aborts and the BBS
- seems frozen. That happens because of XON/XOFF. When it happens you have just
- to press ^Q ( control-q ) and it'll be alive again.
-
- When the modem is set to XON/XOFF it acts on control characters 17 (XON)
- (^Q) and 19 (XOFF) (^S) for controlling the data flow between the modem and
- the computer. If the file you're trying to upload has a character 19 on it,
- mainly binary and archived files, or the protocol itself sends a character 19
- the modem interprets the character as a XOFF and stops recieving data until
- it recieves a XON. So, before uploading you have to disable XON/XOFF in the
- modem. First you have to put the modem in command mode by sending the escape
- string, +++, then you send the command for disabling XON/XOFF, put the modem
- back in online mode and do your upload. When the upload is finished you do
- the same thing but you send the command for enabling XON/XOFF instead. It's
- more easily done than explained. You can do what I do and put the commands in
- function keys. This way you have just to press a few keys to have it done and
- don't need to remember the commands.
-
- The Sportster commands are:
- -Disable XON/XOFF: &I0
- -Enable XON/XOFF: &I2
- -Go to online mode:O
-
- In the function keys you have to use:
- -Disable XON/XOFF and go to online mode: AT&I0O^m
- -Enable XON/XOFF and go to online mode: AT&I2O^m
-
- The Boca and other Rockwell-chipset-based modem commands are:
- -Disable XON/XOFF: &K0
- -Enable XON/XOFF: &K4
- -Go to online mode: O
-
- In the functio keys you have to use:
- -Disable XON/XOFF and go to online mode: AT&K0O^m
- -Enable XON/XOFF and go to online mode: AT&K4O^m
-
-
- When you send the escape sequence (+++) for putting your modem into command
- mode, some remote modems also interpret the three "+" as an escape sequence
- and also go into command mode. When that happens your connection with the
- remote modem is "frozen". The easiest solution for that problem is changing
- the escape character from "+" to another character. The one I've chosen is
- "@". To change it run Desterm and change the initialization string to:
- ATZ^m~~~AT &B1 &H2 &I2 &R1 S2=64^m
-
- for US Robotics modems, and ATZ^m~~~~AT &K4 S2=64^m for
- Rockwell-chipset-based modems.
-
- The S2=64 command changes the escape character from "+" to "@". Now for
- putting you modem in command mode you have just to send @@@ instead of +++.
- You should also change the hangup sequence in Desterm to: ~~~@@@~~~ATH^m.
-
- Ismael
- -----------------------------------------------------------------------------
- -- This is a copy of a message I recieved from Ismael Cordeiro from Canada. I
- don't know his address. I have set my system up according to this and have
- had no problems whatsoever.
-
- Jeff
- e
-