IBM RS/6000 7025 manual Xon/Xoff Modems

Note: If you have already set up your serial ports, line speeds, authorizations and telephone numbers from the Service Processor menus, specify your customized

modem configuration files from the service aid.

If you have not already set up your serial ports, line				speeds, authorizations and
telephone numbers	from the Service Processor	menus, you	may	set them up	with
the service aids	while you specify your	customized	modem	configuration	files.

To disable Auto-Reliable Mode testing of the remote modem, use the sample modem

configuration /usr/share/modems/modemfile_f.cfg as a model to modify.

1. Find the necessary command		in	your	modem manual.
2. Copy/usr/share/modems/modem_f.cfg		to	make	a new file with the name (for
example) modem_fx.cfg	.

3.Inmodem_fx.cfg , change theSendline"ATEðT\r" toSend "ATcccEðT\r" where

ccc is the added command found in your modem manual.

Make this change to the third line of each of the following stanzas:

Ÿcondout

Ÿcondin

Ÿripo

4.Save the changes.

Use this new modem configuration file as described at the top of this section.

Xon/Xoff Modems

Some modems of the mid-80's vintage assume software flow control (Xon/Xoff) between the computer and the modem. Modems with this design send extra characters during and after the transmitted data. The Service Processor cannot tolerate these extra characters. If your configuration includes such a modem, your

functional results				may		be	unpredictable.
The	sample		modem	configuration files included in this package do not support these
modems,		so	custom	configuration				files	would be	necessary. Anchor Automation
2400E	is	an	example		of	such		a modem.
Most	newer		modems	do	not		use	this	design. It	is recommended you use modems of
newer vintage if				you experience unexplainable performance problems that may be
due	to	Xon/Xoff		characters.

D-4IBM RS/6000 7025 F50 Series User's Guide