🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: demon.tech.pc
Article #69190

Re: Q re Fast-SCSI-2 leads & 50-pin Micro-D Active Terminators ...

#69190
From: John Beardmore
Date: Tue, 09 Apr 1996 00:00
55 lines
2301 bytes
In article <148380822wnr@xabcs.demon.co.uk>, J A F Bradbury
<Julian@xabcs.demon.co.uk> writes

>> SMC. Price ?  If you need to ask ?  The cost is silly but they were the
>> only UK vendor I could find for micro D.
>
>I've been sent the following info:
>
>FPT (Forced Perfect Terminator) are above Active, above Passive.

Sorry, what's this above active passive / stuff ?  I'd assumed that they
were just a smarter species of active terminator, maybe something like

                                |\
  In from line on bus  ---|-----| >-----|
                          |     |/      |
                          |             |
                          |---/\/\/\----|

which I've seen Texas Instruments espouse in their seminars.

   
>Videk on 0181-200-1122
>- Active Terminator alone (50-micro-D)        #1522A  19.95 ex
>                          (50-IDC)            #1544A
>- FP Terminator & SCSI Sniffer (50-micro-D)   #1075   39.96 ex
>  Sniffer LEDs:  I/O C/D SEL TRM ACK REQ BSY

That FPT and sniffer price is about what SMC charge for ordinary active.

Maybe I'll try FPT and see if my ( probably overlong ) bus will be
stable without overtermination.


>> >No-ones got a SCSI bus analyser they don't want? ;)
>> 
>> No, but if you find one I might share it...  :)
>
>he he ;) See the above note re FPT & SCSI sniffers. May be interesting.

Indeed. It'll be good to get some idea of what's going on when nothing
is going on...


>Spectrum analyser freaks will love them, purists may not however.

That's OK. They can compensate by drawing round the edge of their CD
ROMS in green felt tip to reduce the bit error rate !

Maybe they could get some gold plated cases too...


Cheers, J/.
-- 
John Beardmore
Technical Details
Message-ID: <l9vdYVALHqaxEwqm@wookie.demon.co.uk>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <248480004wnr@xabcs.demon.co.uk>

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 1036bc,f6d7e505006c39db
X-Google-Attributes: gid1036bc,public
From: John Beardmore <wookie@wookie.demon.co.uk>
Subject: Re: Q re Fast-SCSI-2 leads & 50-pin Micro-D Active Terminators ...
Date: 1996/04/09
Message-ID: <l9vdYVALHqaxEwqm@wookie.demon.co.uk>
X-Deja-AN: 146889981
distribution: world
x-nntp-posting-host: wookie.demon.co.uk
references: <248480004wnr@xabcs.demon.co.uk>
organization: the Saab graveyard !
mime-version: 1.0
newsgroups: demon.tech.pc