scotto@crash.UUCP (10/22/85)
Date: Tue, 22 Oct 85 09:01:56 PDT
To: ihnp4!mcnc!ittral!malloy
Subject: Racal-Vadic 4224 info
Cc: sdcsvax!telecom@mit-xx
I have 5 of the Racal-Vadic 4224 modems in my office. I did
unfortunately get some of the first so there was the normal new
product troubleshooting. I am basically only using one of them
for dial-out right now. I have used them for auto-answer and put
them through a pretty lengthy test. They do speed search, and seem
very clean at 1200. 2400 has more line hits, but I heard through
my vendor that they will be using the MNP protocal in the later
versions.
I only problem that I was aware of with the "Rockwell chip set"
was the power consumption and availability. Racal includes in the
documentation that if you don't have the 1681 chassis (the one with
the huge power supply) that you can only have 8 4224's per rack, even
though it is a 16 slot rack. I have a 1680 chassis with redundant
power supplys, three 2440 (201C) two 1244 (202) and 5 4224's. I have
not had any problems due to power yet. (knock on wood)
Another thing I should mention is that Racal's has a regional service
center. The people there are *very* helpfull and if you have any
questions they are more than willing to help. They will also help you
if you are trying to install your modem in a strange application. I
have talked with, and can recommend Richard Perez for 4224 support and
questions. The number is 800/22V-ADIC or 800/228-2342. If you need
a manual I have a couple extras. Lemme know.
---Scott O'Connell crash!scotto@ucsd - or - crash!scotto@nosc
{ihnp4, cbosgd, sdcsvax, noscvax}!crash!scotto
Data Systems of San Diego