Path: utzoo!attcan!uunet!zephyr.ens.tek.com!tektronix!reed!reeder
From: reeder@reed.UUCP (Doug Reeder)
Newsgroups: comp.sys.apple
Subject: Re: MNP level 5 with Apple II series
Message-ID: <14315@reed.UUCP>
Date: 1 Mar 90 04:55:21 GMT
References: <9002281406.AA15912@masig2.ocean.fsu.edu>
Reply-To: reeder@reed.UUCP (Doug Reeder)
Organization: Institute of Knowledge, Jinx
Lines: 31

In article <9002281406.AA15912@masig2.ocean.fsu.edu> legler@masig2.ocean.fsu.edu (David M. Legler) writes:
_
_ 
_I recently bought a nice 2400 baud modem with level 5 MNP support only to
_discover that the Apple II series will (according to the modem manual) NOT
_support level 5 MNP modem protocol because of the lack of ability to do 
_hardware handshaking with the modem.  Looking at some of the Apple manuals
_like the Super Serial Card,etc  it in fact doesn;t seem that Apple II's 
_support the RTS and CTS pins on RS-232 connections, not at least with the
_SSC.  But in reading further, it seems that the RTS pin is sometimes 
_used for hardware handshaking with some printers.  Being a neophyte in 
_communications, I was wondering if anyone out there in Appledom has in 
_use a modem which supports level 5 MNP ?  Can you use level 5 ? Or more 
_generally can anyone help me out here... surely with all these smart 
_people out there (:-) on the net, there is someone who has experience
_in this realm.  

The SSC comes(or at least came) with a standard DB25 connector with a the
RS232C signals on the pins: RTS,CTS,DSR,DTR,DCD.  The IIc, for reasons best
known to its designers, has only one handshake in and one handshake out,
making it difficult to use for bullitin boards, but otherwise works with
most hardware handshaking.  What hardware handshaking lines there are on the
mini-circular serial connectors, I don't know.  Rest assured, the Apple can
do hardware handshaking.  I don't know what other problems might exist with
level 5 MNP modems, I don't know.

-- 
Doug Reeder                                   USENET: ...!tektronix!reed!reeder
from ARPA: tektronix!reed!reeder@berkeley.EDU BITNET: reeder@reed.BITNET
the Little Mermaid on materialism:
I just don't see how a world that makes such wonderful things ... could be bad!