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From: sl@van-bc.UUCP (Stuart Lynne)
Newsgroups: comp.dcom.modems
Subject: Re: FOR WHAT ITS WORTH  BASTARDIZED PROTOCOLS
Message-ID: <1293@van-bc.UUCP>
Date: Sat, 5-Sep-87 12:59:04 EDT
Article-I.D.: van-bc.1293
Posted: Sat Sep  5 12:59:04 1987
Date-Received: Sun, 6-Sep-87 21:04:37 EDT
References: <8708251509.AA21532@ucbvax.Berkeley.EDU> <243@astra.necisa.oz> <631@sugar.UUCP>
Reply-To: sl@van-bc.UUCP (Stuart Lynne)
Organization: Public Access Network, Vancouver, BC.
Lines: 25

In article <631@sugar.UUCP> peter@sugar.UUCP (Peter da Silva) writes:
>> >standard in the world. In fact the only thing I have not seen changed
>> >is the physical size of the connector, the pin spacing and pin 7 being
>> >signal ground.
>> electrical standard.  The PC's and clones use DB-9 connectors, and the
>> Mac's use 5-pin DIN.  I think...  I've also seen DB-15's used too.
             ^^^^^^^^^
Actually they use 8 pins. (Pinout available on request, here or in
comp.sys.mac.)

>There are a lot of multiport boards for the PC that use what appear to
>be 6 pin phone jacks.
    ^^^^^

Bell Technologies ICC card (.5MB, 80186 etc) uses six RJ45 jacks, these each
have eight "pins". They use the same standard as AT&T with their 3BXXX line
of computers. The design limitation for six ports seems to be the number of
these jacks they could fit on the spine of an AT style board. Perhaps giving
modem handshake, and going to a six line jack would allow for eight ports.




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