Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!sun-barr!cs.utexas.edu!uunet!mcvax!ukc!stl!stc!praxis!hilbert!sfr From: sfr@praxis.co.uk (Stephen Rickaby) Newsgroups: comp.sys.hp Subject: Re: HPIB cable swaps? Summary: Reflections degrade performance Keywords: IEEE-488, HPIB, Cables, Noise Message-ID: <4151@newton.praxis.co.uk> Date: 12 Jun 89 11:49:58 GMT References: <1987@wasatch.utah.edu> <5570203@hpfcdc.HP.COM> Sender: news@praxis.co.uk Reply-To: sfr@praxis.co.uk (Stephen Rickaby) Organization: Praxis Systems plc, Bath, UK Lines: 18 In article <5570203@hpfcdc.HP.COM> rjn@hpfcdc.HP.COM (Bob Niland) writes: >re: "...we have lots of ... brand new 10833A (1 Meter) HP-IB cables." > >> What we DON'T have is many 10833B cables, the 2 meter variety. > >You can make long cables out of short cables by using an HP 30070-00043 >joining plate for each cable pair. $8.25 U.S. list price. Yes, but do be aware that you will intrduce reflections with each connector pair: you may find that 4*10833A does not perform in critical applications. HP publish (I seem to remember) guidelines/rules for HPIB cable configurations: it all depends on what you are driving, what your layout is, etc. ------------------------------------------------------------------------------- Steve Rickaby, Praxis Systems plc, 20 Manvers Street, Bath, BA1 1PX, UK Tel: +44 225 444700 Tx: 465205 PRAXIS sfr%praxis.uuc@ukc.ac.uk, !mcvax!ukc!praxis!sfr