Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!hplabs!hpfcdc!hpfcmgw!rdg
From: rdg@hpfcmgw.HP.COM (Rob Gardner)
Newsgroups: comp.sys.hp
Subject: Re: Getting HP 9000/825 with Mux 98196A to work with TB+
Message-ID: <1080052@hpfcmgw.HP.COM>
Date: 23 May 89 18:02:53 GMT
References: <857@ecf.toronto.edu>
Organization: HP Fort Collins, CO
Lines: 36


>    Thanks I will try it out. Might work better that the one I made with
> the HP engineer's suggestion. The wire is 
> 
>        2 --------- 3
>        3 --------- 2
>        7 --------- 7
>        8 --------- 20
>       20 --------- 8

This is definitely wrong. It's ok for other serial cards, but the 6 channel
mux has brain-damaged pin-outs.

>     Sorry to everyone if I was not clear enough. I was just trying to 
> describe the problem. The modem was set for speaker ON and typing AT didn't
> bring a reponse of OK and the TR light didn't come on. On typing ATDT "phone

If the TR light doesn't come on, then nothing more will work. That's
the first step.

>    Any way I called HP hotline and after 2 engineers later, the problem was a
> BAD Multiplexer port. I was able to get a 2400 baud modem connected and
> working on another port (well, kind of). Now to try the telebit. According to

By any chance, are you trying to connect the telebit to port 0 on the
mux? That won't work, don't know why, try another port.

> the first HP engineer, the telebit is not a HP supported modem and he will no> answer any questions relating to it at all. 

If you can get a hayes or almost any other modem to work, you should
be able to get the telebit to work.

Be sure and scream if you continue to have problems.


raab