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

Page 330
Image 330
IBM RS/6000 7025 manual Xon/Xoff Modems