Path: utzoo!utgpu!jarvis.csri.toronto.edu!me!ecf!chew
From: chew@ecf.toronto.edu (Ping Chew)
Newsgroups: comp.sys.hp
Subject: Re: Getting HP 9000/825 with Mux 98196A to work with TB+
Message-ID: <858@ecf.toronto.edu>
Date: 21 May 89 04:54:19 GMT
References: <857@ecf.toronto.edu> <1080051@hpfcmgw.HP.COM>
Reply-To: chew@ecf.UUCP (Boon-Ping Chew)
Organization: Engineering Computing Facility, University of Toronto
Lines: 50

In article <1080051@hpfcmgw.HP.COM> rdg@hpfcmgw.HP.COM (Rob Gardner) writes:
>>     Has Anyone have been able to get a Telebit Plus to work on a 
>> HP 9000/825 with Mux 98196A ?
>
>You should wire it like this:
>
>	modem              mux
>	pin 2--------------pin 3
>	pin 3--------------pin 2
>	pin 7--------------pin 7
>	pin 8--------------pin 4
>	pin 20-------------pin 6
>
>The 92219Q cable is wired like this, and is the cable you should order.
>
   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

>>     The symptoms of the problem is when dialing with the modem speaker on
>> I couldn't hear the dial tones at all.  - Looks likes the modem "is not
>> "connected to the Multiplexer at all.
>
>Just because the modem didn't make any noise doesn't mean it's not
>working. When you connect with cu, the TR light should light up on 
>the modem. You should be able to get the modem to say 'OK' when you
>type just 'AT'.
>
>raab

    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
number" , I couldn't hear the dialtones -> conclusion, I was no getting to the
modem. 
   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
the first HP engineer, the telebit is not a HP supported modem and he will not
answer any questions relating to it at all. But on the whole both the 
engineers were very helpful.
   I will summary my adventure to HP land after all is done if ever.


   Boon