Hi,
On Sat, Aug 28, 2004 at 06:58:43PM -0400, Philippe Vachon wrote:
> Howdy!
>
> I recently acquired a DEC MicroVAX 4000-300 and I want to connect it up
> to an old PC that I can use as a dumb terminal. Unfortunately, I lack a
> proper null modem cable, but I have a nice length of phone cable (it's
> the same connector pretty much, if you sand down the clip, right?) and
Interesting idea.
I just went through this, though fortunately found an MMJ cable in my
junkbox, with some MMJ hoods for making adapters.
> a nice length of serial cable with connectors on each end. My question
> is, is it possible to jury rig these two pieces of cable, so that I can
> have my VAX up and running for at least a single user (Ethernet will
> come later! ;) ). If so, what lines should I cross (pin numbers would
> be nice :).
This might be the adapter you are looking for, if you care to ebay for it:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5703657438
If you decide to make your own, there is detailed information about the
pin-out on the www.tru64.org website in the FAQ:
http://www.tru64.org/pages.php?page=Tru64-FAQ-Hardware
I believe this is also in other DEC hardware FAQs and a VMS FAQ somewhere.
Note that depending on your terminal emulator, you may need to loop
RTS to CTS, and do not make the mistake I did of disregarding a
ground on both of the "RX-" and "TX-" leads.
Mark
--
Mark G. Thomas (Mark_at_Misty.com)
http://www.misty.com/ http://mail-cleaner.com/
Received on Mon Aug 30 2004 - 21:24:34 BST