25 Oct
2003
25 Oct
'03
10:41 a.m.
Hi guys
Would a cable described as "VHDCI connectors, but they only have 50 pins.
They are female connectors." possibly be an external DSSI cable?
thanks
alex/melt
9:03 p.m.
On Sunday 26 Oct 2003 1:07 am, John Allain wrote:
I have some of the new type DSSI cables to spare,
but not the old.
Question 1: pins/'''IDC''' or
'''centronics'''?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3055015092&cat…
alex/melt
"VHDCI connector"
Post a link or something. I can't tell from the name. 
26 Oct
26 Oct
6:18 a.m.
On 2003.10.26 02:03 Alex White wrote:
This doesn't look like VHDCI, more like "mini Centronix". You should
be
able to get from the code numbers "BC21Q-09, rev C01, 8149-000" if it
is SCSI or DSSI.
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz
12:09 a.m.
On Sun, 26 Oct 2003, Jochen Kunz wrote:
On 2003.10.26 02:03 Alex White wrote:
>
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3055015092&cat…
These are new-style DSSI cables. I have two boxes full of em :)
They were used a lot with early Alpha boxes that had the EISA and PCI
based DSSI cards, connecting to (external) DSSI storage boxes, of which
I also have a few. The older cables (used on many BA440-class boxes)
are similar, but different in physical shape.
--f
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA
12:32 a.m.
On Sunday 26 Oct 2003 1:09 pm, Fred N. van Kempen wrote:
On Sun, 26 Oct 2003, Jochen Kunz wrote:
I'm about to aquire a KFQSA for my 4000/200 in a ba213 cab, to go with a
QBUS->SCSI Storageworks coverter and box and it'll need a DSSI cable...
i'm not going to have enough clearance to use this cable between the cable
and thje front cover of the cabinet, am I?
*mutter mutter want another right-angled DSSI cable mutter*
alex/melt
On 2003.10.26 02:03 Alex White wrote:
> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3055015092&cate
>gory=3704
These are new-style DSSI cables. I have two boxes full of em :)
They were used a lot with early Alpha boxes that had the EISA and PCI
based DSSI cards, connecting to (external) DSSI storage boxes, of which
I also have a few. The older cables (used on many BA440-class boxes)
are similar, but different in physical shape.
12:45 a.m.
On Sun, 26 Oct 2003, Alex White wrote:
I'm about to aquire a KFQSA for my 4000/200 in a
ba213 cab, to go with a
QBUS->SCSI Storageworks coverter and box and it'll need a DSSI cable...
i'm not going to have enough clearance to use this cable between the cable
and thje front cover of the cabinet, am I?
Nope.. you'll need to get an angled
cable for that, or just leave the
cover open a bit. I cant remember whether the connectors even fit-
the KFQSA has the old ones, I believe (and I'm too lazy to walk
upstairs to check..)
*mutter mutter want another right-angled DSSI cable
mutter*
We can fix that.. contact me offlist.
--f
--
Fred N. van Kempen, DEC (Digital Equipment Corporation) Collector/Archivist
Visit the VAXlab Project at http://www.pdp11.nl/VAXlab/
Visit the Archives at http://www.pdp11.nl/
Email: waltje(a)pdp11.nl BUSSUM, THE NETHERLANDS / Sunnyvale, CA, USA
7:14 a.m.
They were used a lot with early Alpha boxes...
The older cables (used on many BA440...
If somebody could tell me where there's a cable with
the old DSSI connector type on one end and the new
on the other, that would meke me a happier person.
Just a DEC p/n would help.
John A.
probably overstated.
25 Oct
25 Oct
3:49 p.m.
On Sat, 25 Oct 2003, Alex White wrote:
Hi guys
Would a cable described as "VHDCI connectors, but they only have 50
pins. They are female connectors." possibly be an external DSSI cable?
I've seen high density SCSI cables that use those connectors. Maybe thats
what you've found?
-Toth
26 Oct
26 Oct
6:09 a.m.
On 2003.10.25 15:41 Alex White wrote:
Would a cable described as "VHDCI connectors, but
they only have 50
pins. They are female connectors." possibly be an external DSSI cable?
No.
DSSI uses SubD HD 50 connectors and that is not VHDCI. And probably
cou can't use SCSI cables at all. SCSI and DSSI use a different wiring
sheme for signal and GND lines. Normaly you should have twisted pairs
of lines, one signal, one GND. Due to the pinout differences you may
end up with two signals on one twisted pair when using a SCSI cable for
DSSI.
--
tsch??,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz
7728
days inactive
7729
days old
9 comments
5 participants
participants (5)
-
allain＠panix.com -
jkunz＠unixag-kl.fh-kl.de -
meltie＠meltie.com -
tothwolf＠concentric.net -
waltje＠pdp11.nl