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- Path: sparky!uunet!uunet.ca!xenitec!lemsys!clemon
- From: clemon@lemsys.UUCP (Craig Lemon VE3XCL)
- Newsgroups: comp.dcom.modems
- Subject: Re: Serial and Parallel interface ??????
- Distribution: world
- Message-ID: <clemon.08kw@lemsys.UUCP>
- References: <clemon.08gc@lemsys.UUCP> <1992Jul21.014904.5052@raven.alaska.edu> <clemon.08ii@lemsys.UUCP> <1992Jul22.053652.9090@raven.alaska.edu>
- Date: 25 Jul 92 22:13:31 EDT
- Organization: Private UUCP "Twig" Node
- Lines: 28
-
- In article <1992Jul22.053652.9090@raven.alaska.edu> floyd@hayes.ims.alaska.edu (Floyd Davidson) writes:
- >In article <clemon.08ii@lemsys.UUCP> clemon@lemsys.UUCP (Craig Lemon VE3XCL) writes:
- >>Lining the bits up single file can
- >>only go so fast. While we may not have reached this limit with standard
- >>high-speed modem technology yet, there will be other standards (ISDN
- >>perhaps) that will.
- >
- >ISDN is has a serial interface. And while the fastest serial interface
- >may not be good enough someday, the fastest one I work with right
- >now runs well up into the multimegabit range... 45Mbps. And I
- >hear of others that are faster.
-
- OK. Granted, serial links can be fast once you start shielding the
- path. You can only go so fast on a serial line before the frequency of the
- bits reaches RF range and cable losses on a normal "twisted pair" become
- significant. I think the point of the debate centers more around looking
- for a standard solution to replace RS-232C as opposed to arguing actual
- serial vs. parallel concepts. For simple things like losses in cabling
- that I mentioned earlier, the frequencies involved in a parallel bus are
- at least 1/8th what they would be in a serial environment. That is
- something to consider that is totally separate from servicing the data
- stream at the terminal.
-
- --
- Craig Lemon VE3XCL - Kitchener, Ontario. Amiga B2000 OS 2.04 UUCPv1.15D.
- +1 519 741 0297 +1 519 578 7817 | Silly people! We all
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-