home *** CD-ROM | disk | FTP | other *** search
- Path: dispatch.news.demon.net!demon!lando.demon.co.uk
- From: Andy@lando.demon.co.uk (Andrew Oland)
- Newsgroups: comp.sys.amiga.applications
- Subject: Re: Length of nullmodemcable
- Date: 19 Apr 96 23:58:03 +0000
- Message-ID: <1053.6683T1438T185@lando.demon.co.uk>
- References: <xdAPjMD0aUz1@wizzcat.prima.ruhr.de> <1019.6682T518T2874@lando.demon.co.uk> <4l68e3$ncb@serpens.rhein.de>
- NNTP-Posting-Host: lando.demon.co.uk
- X-NNTP-Posting-Host: lando.demon.co.uk
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- On 18-Apr-96 20:24:35, Michael van Elst wrote about Re: Length of nullmodemcable,
-
- >>I'm sure someone once told me that for a /reliable/ link about 10
- >>metres is the max. Any more than this and its *possible* that you can
- >>lose some data across the link.
-
- MvE> That depends on the voltages used (RS232 allows +/-3 .. +/-25V for
- MvE> signals), the cable type and the baudrate used.
-
- Won't disagree with you there - however with the standard 1200 power
- supply coupled w3ith the standard chipset I have my doubts.
-
- MvE> Without standard +/-12V and 19200 baud you should be able to go over
- MvE> a distance of 50m (in fact, that's what I did for some time).
-
- Fair enough...learn something new everyday :)
-
- MvE> BTW, shielded cable most often reduces the maximum cable length
- MvE> because it has a higher capacitance. Unshielded twisted pair is
- MvE> probably the best for RS232 in a normal environment.
-
- That maybe...but given the shorter length you beter transfer even with
- a shorter cable.
-
- Andy
- Is it a bigger crime to rob a bank or to open one?
-
-
-