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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

47.0. "Df224 Whistling" by DEXTER::MELLITZ (Tazmanian Devil) Thu Jun 12 1986 03:41

	I'm getting a whistling out of my DF224 modem.  Evn when I hand
    dial it dosen't seen to work. I just get an attached message and
    then nothing. I'm using the same 15 pin cable that I'm using right
    now with the DF03.  Any one got any hints.
    (
    Whew it's tought to edit using ONLINE!)
    
     ... Rich
T.RTitleUserPersonal
Name
DateLines
47.1BAGELS::BRANNONDave BrannonThu Jun 12 1986 23:384
    try the MIGHTY::MODEMS notesfile if you think the problem may be
    the modem...
    
    -Dave
47.2Brute Force Solution...DEXTER::MELLITZTazmanian DevilFri Jun 13 1986 11:5024
    re: 1
    I call "Mr. Might Modem" himself. He never saw the problem before.

    He gave me the pin outs for the modem (don't know why they are not
    in the manual???). I did do something that worked. I built my own
    cable. I use what I considered the bare minimum configuration and
    made the assumption that I probably will never us synchronous
    mode. The cable I made used pins 1-8 and pin 20 (one to one, male
    to male). I used shield twisted multipair wire. The outside shield
    is connected to pin 1 and the signal shields are connected to 
    pin 7. 
    One more observation. I don't remember what the part number of
    the cable was, but as I was leaving this morning I decided to count
    the number of pins on the modem cable I was using. There were
    16! I didn't have time to further investigate what the 16th
    pin was.  I don't know about the Amiga, but other computer manufactures
    put power (20v) on what they consider unused pins so modem that
    are put on their computers don't need a power suppy. 
    
         ... Rich
    
    
    
    
47.3Same HereAUTHOR::MACDONALDCUP/MLMon Sep 22 1986 14:214
    I am having the same problem with my DF224. What pins are you using?
    1 through 8 and 20? Perhaps I will snip a few pins.
    
    Paul