I've just taken out my good old 2400 modem and replaced
it with a good new ACEEX 28800 modem (which will be updated
to V.34 in a matter of weeks?). To my surprise :-) I had
some problems ...
The setup is:
Old and running 9600 modem on Port A (Bullet 9696)
Brand new ACEEX 28800 on Port B
Before the swap, a 2400 modem was running OK on port B
I have edited all the necessary files (I think):
and added/modified entries to support 19200 and 28800 speeds,
similar to the existing entries for other speeds.
I've set the modem up with "normal" init sequence:
*** PROBLEMS ***
1/ I cannot run it in 28800 speed, SunOS reports invalid
baud rate. I manage on 19200, though.
2/ I cannot dial in at all. The modem answers correctly, and
synchronizes on correct speed (CONNECT 19200), but displays
garbage when login prompt should be present (typical speed
problem, as it appears). I've tried dialling from:
- PC using another (identical) ACEEX modem
- PC using a known good 2400 modem (which runs OK on port A 9600 modem)
- Port A on same WS using a known good 9600 modem (tip modem, atdt...)
3/ I cannot dial out to a known good 9600 modem. "tip modemb" is OK,
and I can dial the A port on my machine using ATDT commands. The
modem sometimes connect at 19200, sometimes at 9600, but always
drops the line before a login prompt is displayed. This is strange,
since the other modem is only capable of 9600?
None of my sysadm books makes it any clearer. I just can't
understand what I am doing wrong?
PLEASE HELP! Any ideas or hints will be greatly appreciated!
I refuse to believe that a 28800 modem is *that* different from a
2400 or 9600!
Peer Toerngren, WM-data Konsult AB, S Kyrkogatan 4, S-652 24 Karlstad (Sweden)
Tel: +46-(0)54/18 04 25 Fax: +46-(0)54/15 67 85
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