Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!uunet!tut.cis.ohio-state.edu!ucbvax!autro1.UUCP!
From: @autro1.UUCP ("teig_y", yvind Teig)
Newsgroups: comp.sys.transputer
Subject: Control signals on optic link
Message-ID: <9105041115.AAnac14693@nac.no>
Date: 3 May 91 09:55:34 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 34

---------------------------------------------------------------------
Transputer link via optic cable. 

We are thinking about using optic links between transputer embedded-
controller boxes. I know about the Inmos application note "Connecting
INMOS links". I also know about a board from TTT "Transputer Technologie
Transfer" that has Tx-links to optic, with all control lines encoded
into fibeglass optic.

Does anyone out there have any experience?

Q1: What kind of optical TX / RX do you use?
    (HFBR 1402 / 2402) ?
Q2: What kind of cable?
    (Fiber, plastic, attenuation?)
Q3: We plan to use 5 Mbit/sec, over 100m max. Do you
    have any figures for Bit Error Rate (BER). I suppose
    that it must be quite good (10 EXP-14 or better) to use
    bare transputer links.
Q4: Does anyone have any suggestion as to which method to use
    to multiplex reset, analyse and notError on the optic cable?
Q5: We need a duplex cable, quite rugged, for use inside ships.
    It needs to withstand some oil dust, but not salt water.
    Any reference to a good cable? (No electrical lines needed).
---------------------------------------------------------------------
Oyvind Teig, AUTRONICA
7004 Trondheim, Norway

tel:   + 47 7 581268
fax:   + 47 7 919320
email: nuug!autro1.teig

03.05.91
---------------------------------------------------------------------