11 Jun
2012
11 Jun
'12
12:41 a.m.
On 06/09/2012 10:23 AM, Kevin Reynolds wrote:
I'm trying to figure out which adapter I should
get to attach my wyse 60 to the console of a microvax III (3900).
I know I need a MMJ jack to DB25 male cable, but there are a few flavors. At first
glance it appears that I either need H8571-D or H8575-D, however its possible I ned
H8575-E.
Someone know which one to purchase? I have the BC16E cable required...
There are lots of flavors. Though Tony will probably blow a fuse when
reading this suggestion, figuring out the absolute perfectly correct one
is a complete waste of time...Get an MMJ adapter, whichever one you can
find. Plug it in. If it doesn't talk, insert a null modem, and it will
talk. Simple as that.
Be sure to disable flow control on the terminal.
Again, I'm usually a purist to a fault, but where async serial is
concerned, if the GOAL is to get it talking, do what I said above...if
the goal is to spend two hours diving into the (unbelievably poor) RS232
standard, and then figuring out your mix of vendors' creative
interpretations of that standard, then figure out how to make it all
talk, then go get exactly what you need and plug it in...I've already
gotten the OS halfway installed by that point. I spent years agonizing
and being anal-retentive over "which one is DTE, which is DCE" etc etc
and just said "screw this, I want to BOOT the damn thing!"...and have
never looked back. ;)
If you have any sort of MicroVAXen, you should keep a few MMJ adapters
of various flavors around anyway and if you have any sort of random
non-PeeCee computers, you should have a handful of null modems, gender
changers, DE9<->DB25 adapters, etc etc. You will use them all the time,
if you don't already.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA