Path: utzoo!attcan!uunet!lll-winken!ames!ucsd!ucsbcsl!hbo@nobbs.ucsb.edu
From: hbo@nobbs.ucsb.edu
Newsgroups: comp.sys.amiga
Subject: Re: Help with AUX and terminal
Message-ID: <1285@hub.ucsb.edu>
Date: 1 Mar 89 08:15:52 GMT
Sender: news@hub.ucsb.edu
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Organization: UC, Santa Barbara. Physics Computer Services
Lines: 29

In article <2030160@hpcilzb.HP.COM>, daves@hpcilzb.HP.COM (Dave Scroggins) writes...

>I tried to hook a terminal up to the serial port and run it through
>the AUX device. I know the terminal works because I can use it with a HAYES
>modem with no problems. (Also the cables are good.) I can also use the
>modem with the AMIGA through the serial port.
> 
>I make sure the AUX is mounted, then type, "newcli AUX:" as it says in the
>1.3 manual. I make sure the baud rates and such is set right.
> 
>But nothing happens with the terminal. No commands entered, no echo, Zip!
> 

   You probably need to get a "null modem" style cable, one that swaps RS232 
transmit and receive lines (2 and 3). In the jargon of the RS232 spec, your 
modem is "DCE" (Data Communications Equipment) and your terminal is "DTE" (Data
Terminal Equipment). DTE will connect to DCE with a straight through cable, so
hooking up your modem to your terminal works fine. Your Amiga's serial port is
a DTE device, so hooking up the modem to the Amiga is again no problem with a
straight through cable. When you try to hook up the terminal though, you are
connecting DTE to DTE, so you need to swap lines 2 and 3 in your cable in
order to ensure the transmit line of one device goes to the receive line of the 
other. If all this seems obscure, just ask your dealer for a "null modem" cable.

--
Howard Owen, Computer Systems Manager           internet: hbo@nobbs.ucsb.edu
Physics Computer Services                       BITNET: HBO@SBITP.BITNET
University of California, Santa Barbara         HEPNET/SPAN:   SBPHY::HBO
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