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From: res1@mhuxl.UUCP (STEALEY)
Newsgroups: net.micro.apple
Subject: Re: Pinouts for the Apple //c modem port
Message-ID: <209@mhuxl.UUCP>
Date: Thu, 16-May-85 10:48:04 EDT
Article-I.D.: mhuxl.209
Posted: Thu May 16 10:48:04 1985
Date-Received: Fri, 17-May-85 01:25:56 EDT
References: <300@osu-eddie.UUCP>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 28

> Does anybody know which signals are which on the modem port on the back of
> the Apple //c ?  
> 
> Please reply by mail.  If there is enough interest I'll post to the net.
> 
> -- 
> -----------------------------------
> Norm Pritchett
> UUCP:   cbosgd!osu-eddie!pritch
> CSNET:  pritch@ohio-state
> BITNET: TS0017 at OHSTVMA
> MA-NET: (614) 291-8775

The following information is from the Apple IIc Reference Manual Vol.1.
Serial port 2------

pin number              function
  1                      DTR   Data Terminal Ready
  2                      TD    Transmit Data
  3                      GND   Ground
  4                      RD    Receive Data
  5                      DSR   Data Set Ready

In addition the manual contains 18 more pages of information regarding serial
port number 2 and the use of it for communications.  

Rick
mhuxl!res1