I happen to be pulling my hair out with connectors for the last few days trying to find a circular MIL connector that is 搈an enough� to pass USB 3.0 and has 22 AWG or larger contacts (as specified by the government). I don抰 think it can be done. Smallest good connector (that actually works) that I have seen has 23/24 AWG contacts. But if its in the spec, it has to be valid. Right.

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On 2/24/2021 11:26 PM, William Ripley wrote:
> >
> > I am so happy to find someone else that actually knows the correct
> > terminology for the D-Sub connectors.听 Nearly everyone calls DB-xx,
> > and it makes me crazy.听 DA-15, DB-25, DC-37, DD-50, DE-9.听 Thanks !!

听

听

Yes !听听 no one makes a DB-9

听

See the attached article from VE3FRM

听

A 鈥淏鈥� shell would be the size of a 25 pin connector.

听

John VE3AMZ

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I got a call back from Zetron and they were of no help, other than telling me
what I already knew...

The manual schematic tells me that it uses a MAX232 chip, and that DE9 pins
pins 1 and 3 are outputs and pins 2 and 4 are inputs, and both pin 5
and 9 are ground. I received a private message that told me that the modem
cable pinout is this:

9 pin听听听听 25 pin
1听 black听 20
2听 red听听听听 8
3听 green听 2
4听 white听听 3

I have two spare controllers on the bench and听 thanks to that听 plus Tom's
and Jeff's reply I'm able to get it to do this on power-up:

= = =
Model 42 Version 2.31
Copyright 1993-97 ZETRON INC.

96
INSTALLED OPTIONS
听 DISPATCH
听 GHOST REPEATER
听 EF JOHNSON BUS
听 VERSION 6.+ DEFAULT OPERATION
AT
AT E0 Q0 V1 X1 S0=1
= = =
The second spare does this:
= = =
Model 42 Version 2.4a
Copyright 1993-98 ZETRON INC.

64
INSTALLED OPTIONS
听 DISPATCH
听 EF JOHNSON BUS
听 VERSION 6.+ DEFAULT OPERATION
AT
AT E0 Q0 V1 X1 S0=1
= = =
But neither responds to anything from the keyboard.

I found a comment on another web site that Zetron had a software product
called Multibase, and that the manual for that had the info on communicating
with the units using a dumb terminal.听 Anybody have a Multibase manual on
their shelf?听 Or a PDF on their hard drive?

I have a PDF of the Model 42 manual if anybody needs it.听

Mike

As the author/article at theverge represented, Fry's has been "dead to us" for at least two years.听 SF Bay Area stores - Campbell, Palo Alto, San Jose, Fremont, empty hollow depressing shells of their once go-to selves.听 Skeleton crew of floor employees sadly paid to lie for a paycheck.听 Not much excuse/justification except perhaps internal mis-management and exploitation.听 I recall the original Fry's "7-11' store space in Sunnyvale - some techie stuff, candy/treats, magazines - nothing else until 'exploding' to various go-to locations.

Their demise evolved, along with HRO-Sunnyvale, Weird Stuff, Alltronics, Haltek, Halted, etc. leaving us, the supposed tech-central of America with only Central Computer (good maker resource) and Anchor Electronics.听 Sadly in parallel the demise of the Maker spaces, events and publications.听 STEM/STEAM, pro-active hands-on experiences with any/all tech has too rapidly gone the way of "shop class" - "all your tech be virtual..." - but it's NOT!听 听

MikeRoweWorks can produce plumbers, welders, mechanics, electricians, but any/all the might and $$$ of high-tech cannot step up to facilitate network, telemetry, data center, security system, deployment, infrastructure trained persons?听 WTF?听 听 I've emailed Mike Rowe many times about expanding his program/scope - nadda.听 I tried to establish a parallel tech-related effort with some encouragement and potential backing (Silicon Valley has a LOT of money to be exploited for this...) but, have to maintain a day-job...

If FirstNet, much less commercial 2-way is ever going to survive - it obviously needs what WE can share, while we can, before we aren't here to do so.听 Does anyone care?听 If it matters, I am willing to again strive to faciliate contact/faciliate.听听

听

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