MS
Mark Spencer
Thu, Jun 22, 2017 6:42 PM
Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
MD
Magnus Danielson
Thu, Jun 22, 2017 7:10 PM
Hi,
The second connect has been called "Cannon" and XLR, and is not
generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many
others confusing. This is a good example how vendor name for a connector
type is not a good thing. The first connector is a circular MIL-STD
connector (don't remember the correct notation), and this is a product
available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Hi,
The second connect has been called "Cannon" and XLR, and is not
generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many
others confusing. This is a good example how vendor name for a connector
type is not a good thing. The first connector is a circular MIL-STD
connector (don't remember the correct notation), and this is a product
available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
> Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
> The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
>
> Both were in use in my lab powering time nuts gear.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Mark Spencer
>
> mark@alignedsolutions.com
>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
MS
Mark Spencer
Thu, Jun 22, 2017 7:33 PM
There seem to be many variations in colloquial naming in different regions and industries. Part of the reason I prefer to deal with local vendors with a parts counter is to be able to more or less confirm that connectors match / mate properly prior to purchasing them.
All the best.
Mark Spencer
mark@alignedsolutions.com
On Jun 22, 2017, at 12:10 PM, Magnus Danielson magnus@rubidium.dyndns.org wrote:
Hi,
The second connect has been called "Cannon" and XLR, and is not generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many others confusing. This is a good example how vendor name for a connector type is not a good thing. The first connector is a circular MIL-STD connector (don't remember the correct notation), and this is a product available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
There seem to be many variations in colloquial naming in different regions and industries. Part of the reason I prefer to deal with local vendors with a parts counter is to be able to more or less confirm that connectors match / mate properly prior to purchasing them.
All the best.
Mark Spencer
mark@alignedsolutions.com
> On Jun 22, 2017, at 12:10 PM, Magnus Danielson <magnus@rubidium.dyndns.org> wrote:
>
> Hi,
>
> The second connect has been called "Cannon" and XLR, and is not generally recogniced as XLR, which is the product range name.
>
> Naming of the first connector as "Cannon" is at least for me and many others confusing. This is a good example how vendor name for a connector type is not a good thing. The first connector is a circular MIL-STD connector (don't remember the correct notation), and this is a product available from ITT Cannon as well as AMP.
>
> Cheers,
> Magnus
>
>> On 06/22/2017 08:42 PM, Mark Spencer wrote:
>> Sorry if I have caused any un due confusion thru my perhaps incorrect use of the terms "cannon" and "XLR."
>> The green connector with 4 separate female contacts is what I perhaps in correctly referred to as a "cannon" connector. The silver connector with 3 separate female contacts was what I perhaps incorrectly referred to as a "XLR" connector.
>>
>> Both were in use in my lab powering time nuts gear.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Mark Spencer
>>
>> mark@alignedsolutions.com
>>
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>
CA
Chris Albertson
Thu, Jun 22, 2017 8:06 PM
I think they call these "16mm aviation plugs" in the CNC machine tool
world. They are common for connecting servo or stepper motors to their
controllers.
they have any number of poles from 2 to 6 or more and screw rings that
secure them. Usually really good quality even from Chinese eBay vendors.
But they are really used only for a cable to chassis and only up to a few
amps. here is one
http://www.ebay.com/itm/5pcs-Aviation-Plug-4-Pin-16mm-GX16-4-Metal-Male-Female-Panel-Connector-New/172271528592?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D44840%26meid%3D1f63ff61ed134f628c9629d26b2690b1%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D281469838889
Why so many connecter types? So you don't cross stuff up.
Power poles are great for low-tech 12 volt buss systems that don't need any
kind of engineering and are tolerant of connecting "anything to anything."
Amateur radios and lead acid batteries are OK. Not good for high tech
battery or their chargers or loads.
Th XT60 or if you need 90 amps, the XT90 is ok because it is gendered and
you can't accidentally connect two sources.
The aviation type are perfect for cabling four or six lead motors.
I would not use 3-pin XLR for anything but audio. Don't make it easy to
connect line level audio to a battery.
A really dumb idea was this guy, I heard this story secondhand. He used
A/C extension cords for speaker cables because they work well for that
purpose, but then someone plugged a speaker into a 120vac well outlet. I
assume it made a load 60 Hz tone for a few cycles. Best to follow
industry conventions because that is what people expect.
Even though it would work well electrically, no one uses a mini-USB jack
for Ethernet and for good reason
On Thu, Jun 22, 2017 at 11:42 AM, Mark Spencer mark@alignedsolutions.com
wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect use
of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in
correctly referred to as a "cannon" connector. The silver connector with 3
separate female contacts was what I perhaps incorrectly referred to as a
"XLR" connector.
and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
I think they call these "16mm aviation plugs" in the CNC machine tool
world. They are common for connecting servo or stepper motors to their
controllers.
they have any number of poles from 2 to 6 or more and screw rings that
secure them. Usually really good quality even from Chinese eBay vendors.
But they are really used only for a cable to chassis and only up to a few
amps. here is one
<http://www.ebay.com/itm/5pcs-Aviation-Plug-4-Pin-16mm-GX16-4-Metal-Male-Female-Panel-Connector-New/172271528592?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D44840%26meid%3D1f63ff61ed134f628c9629d26b2690b1%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D281469838889>
Why so many connecter types? So you don't cross stuff up.
Power poles are great for low-tech 12 volt buss systems that don't need any
kind of engineering and are tolerant of connecting "anything to anything."
Amateur radios and lead acid batteries are OK. Not good for high tech
battery or their chargers or loads.
Th XT60 or if you need 90 amps, the XT90 is ok because it is gendered and
you can't accidentally connect two sources.
The aviation type are perfect for cabling four or six lead motors.
I would not use 3-pin XLR for anything but audio. Don't make it easy to
connect line level audio to a battery.
A really dumb idea was this guy, I heard this story secondhand. He used
A/C extension cords for speaker cables because they work well for that
purpose, but then someone plugged a speaker into a 120vac well outlet. I
assume it made a load 60 Hz tone for a few cycles. Best to follow
industry conventions because that is what people expect.
Even though it would work well electrically, no one uses a mini-USB jack
for Ethernet and for good reason
On Thu, Jun 22, 2017 at 11:42 AM, Mark Spencer <mark@alignedsolutions.com>
wrote:
> Sorry if I have caused any un due confusion thru my perhaps incorrect use
of the terms "cannon" and "XLR."
> The green connector with 4 separate female contacts is what I perhaps in
correctly referred to as a "cannon" connector. The silver connector with 3
separate female contacts was what I perhaps incorrectly referred to as a
"XLR" connector.
>
> Both were in use in my lab powering time nuts gear.
>
>
>
>
>
>
>
>
>
>
>
>
> Mark Spencer
>
> mark@alignedsolutions.com
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
--
Chris Albertson
Redondo Beach, California
VH
Van Horn, David
Thu, Jun 22, 2017 9:25 PM
I have a design rule that I've used for decades: "If it fits, it works, or it does no harm."
-----Original Message-----
Why so many connecter types? So you don't cross stuff up.
I have a design rule that I've used for decades: "If it fits, it works, or it does no harm."
-----Original Message-----
Why so many connecter types? So you don't cross stuff up.
OE
Orin Eman
Thu, Jun 22, 2017 9:35 PM
A really dumb idea was this guy, I heard this story secondhand. He used
A/C extension cords for speaker cables because they work well for that
purpose, but then someone plugged a speaker into a 120vac well outlet. I
assume it made a load 60 Hz tone for a few cycles. Best to follow
industry conventions because that is what people expect.
CQ magazine had an article where they did something similar and used a
120V extension cord for low voltage - 12V solar panels or some such
project. Accidently plug the cord into 120V and you'd blow your panels and
radios up! I didn't renew my subscription after that one.
On Thu, Jun 22, 2017 at 1:06 PM, Chris Albertson <albertson.chris@gmail.com>
wrote:
>
> A really dumb idea was this guy, I heard this story secondhand. He used
> A/C extension cords for speaker cables because they work well for that
> purpose, but then someone plugged a speaker into a 120vac well outlet. I
> assume it made a load 60 Hz tone for a few cycles. Best to follow
> industry conventions because that is what people expect.
>
CQ magazine had an article where they did something similar and used a
120V extension cord for low voltage - 12V solar panels or some such
project. Accidently plug the cord into 120V and you'd blow your panels and
radios up! I didn't renew my subscription after that one.
BB
Bob Bownes
Thu, Jun 22, 2017 10:12 PM
Keep in mind that there are a large variety of power pole connectors. I first encountered them in the cables and connectors used to recharge electric forklifts. Plenty big and can handle plenty of power.
On Jun 22, 2017, at 16:06, Chris Albertson albertson.chris@gmail.com wrote:
I think they call these "16mm aviation plugs" in the CNC machine tool
world. They are common for connecting servo or stepper motors to their
controllers.
they have any number of poles from 2 to 6 or more and screw rings that
secure them. Usually really good quality even from Chinese eBay vendors.
But they are really used only for a cable to chassis and only up to a few
amps. here is one
http://www.ebay.com/itm/5pcs-Aviation-Plug-4-Pin-16mm-GX16-4-Metal-Male-Female-Panel-Connector-New/172271528592?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D44840%26meid%3D1f63ff61ed134f628c9629d26b2690b1%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D281469838889
Why so many connecter types? So you don't cross stuff up.
Power poles are great for low-tech 12 volt buss systems that don't need any
kind of engineering and are tolerant of connecting "anything to anything."
Amateur radios and lead acid batteries are OK. Not good for high tech
battery or their chargers or loads.
Th XT60 or if you need 90 amps, the XT90 is ok because it is gendered and
you can't accidentally connect two sources.
The aviation type are perfect for cabling four or six lead motors.
I would not use 3-pin XLR for anything but audio. Don't make it easy to
connect line level audio to a battery.
A really dumb idea was this guy, I heard this story secondhand. He used
A/C extension cords for speaker cables because they work well for that
purpose, but then someone plugged a speaker into a 120vac well outlet. I
assume it made a load 60 Hz tone for a few cycles. Best to follow
industry conventions because that is what people expect.
Even though it would work well electrically, no one uses a mini-USB jack
for Ethernet and for good reason
On Thu, Jun 22, 2017 at 11:42 AM, Mark Spencer mark@alignedsolutions.com
wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect use
of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I perhaps in
correctly referred to as a "cannon" connector. The silver connector with 3
separate female contacts was what I perhaps incorrectly referred to as a
"XLR" connector.
and follow the instructions there.
Keep in mind that there are a large variety of power pole connectors. I first encountered them in the cables and connectors used to recharge electric forklifts. Plenty big and can handle plenty of power.
> On Jun 22, 2017, at 16:06, Chris Albertson <albertson.chris@gmail.com> wrote:
>
> I think they call these "16mm aviation plugs" in the CNC machine tool
> world. They are common for connecting servo or stepper motors to their
> controllers.
>
> they have any number of poles from 2 to 6 or more and screw rings that
> secure them. Usually really good quality even from Chinese eBay vendors.
> But they are really used only for a cable to chassis and only up to a few
> amps. here is one
> <http://www.ebay.com/itm/5pcs-Aviation-Plug-4-Pin-16mm-GX16-4-Metal-Male-Female-Panel-Connector-New/172271528592?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D44840%26meid%3D1f63ff61ed134f628c9629d26b2690b1%26pid%3D100009%26rk%3D1%26rkt%3D1%26sd%3D281469838889>
>
> Why so many connecter types? So you don't cross stuff up.
>
> Power poles are great for low-tech 12 volt buss systems that don't need any
> kind of engineering and are tolerant of connecting "anything to anything."
> Amateur radios and lead acid batteries are OK. Not good for high tech
> battery or their chargers or loads.
>
> Th XT60 or if you need 90 amps, the XT90 is ok because it is gendered and
> you can't accidentally connect two sources.
>
> The aviation type are perfect for cabling four or six lead motors.
>
> I would not use 3-pin XLR for anything but audio. Don't make it easy to
> connect line level audio to a battery.
>
> A really dumb idea was this guy, I heard this story secondhand. He used
> A/C extension cords for speaker cables because they work well for that
> purpose, but then someone plugged a speaker into a 120vac well outlet. I
> assume it made a load 60 Hz tone for a few cycles. Best to follow
> industry conventions because that is what people expect.
>
> Even though it would work well electrically, no one uses a mini-USB jack
> for Ethernet and for good reason
>
>
>
> On Thu, Jun 22, 2017 at 11:42 AM, Mark Spencer <mark@alignedsolutions.com>
> wrote:
>> Sorry if I have caused any un due confusion thru my perhaps incorrect use
> of the terms "cannon" and "XLR."
>> The green connector with 4 separate female contacts is what I perhaps in
> correctly referred to as a "cannon" connector. The silver connector with 3
> separate female contacts was what I perhaps incorrectly referred to as a
> "XLR" connector.
>>
>> Both were in use in my lab powering time nuts gear.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Mark Spencer
>>
>> mark@alignedsolutions.com
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
AT
Arnold Tibus
Thu, Jun 22, 2017 10:54 PM
Hello,
I can second Magnus and want to throw in some more details.
Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
companies manufacturing all kind of connectors and are n o t connector
type designations! Important are the type numbers of the manufacturer or
higher level specification numbers.
We used in the aircraft and spacecraft business naturally the military
(MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
no). Most types of connectors are under these numbers available from
different manufacturers, of course with different manufacturer in house
part numbers. Attention: the 'same' connectors may be bought w/o the
Mil.-spec. sheets with somewhat lesser quality. Important details are
the max. mating number, the contact resistance (e.g. 20 mOhm) and the
max. continuous current, max. Voltage, vibration resistance and
reliability etc. Of course, this makes good connectors somewhat
'expensive'. Hirel and non-magnetic gold plated D- subminiture type
connectors do survive e.g. the rocket launch phase (high vibrations),
vacuum and low temperatures and are still used for space projects.
The D-sub series of connectors was introduced by Cannon in 1952. They
are still available as standard, hirel, and non-magnetic versions. The
contacts were machined contacts forcrimping or soldering connection and
made of massive copper with gold finish. (more see e.g.
https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
big number of companies producing equivalent types. Cheap ones are
equipped with contacts made of sheetmetal. Nobody should expect then the
same spec. values as reliability, mating numbers, contact power rating etc.
It is up to the designer of a product to be informed and select the
right quality device for his product ...
I hope I could enlight a bit the connector selection and nomenclature point.
regards, 73
Arnold, DK2WT
Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
Hi,
The second connect has been called "Cannon" and XLR, and is not
generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many
others confusing. This is a good example how vendor name for a
connector type is not a good thing. The first connector is a circular
MIL-STD connector (don't remember the correct notation), and this is a
product available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect
use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I
perhaps in correctly referred to as a "cannon" connector. The silver
connector with 3 separate female contacts was what I perhaps
incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Hello,
I can second Magnus and want to throw in some more details.
Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
companies manufacturing all kind of connectors and are n o t connector
type designations! Important are the type numbers of the manufacturer or
higher level specification numbers.
We used in the aircraft and spacecraft business naturally the military
(MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
no). Most types of connectors are under these numbers available from
different manufacturers, of course with different manufacturer in house
part numbers. Attention: the 'same' connectors may be bought w/o the
Mil.-spec. sheets with somewhat lesser quality. Important details are
the max. mating number, the contact resistance (e.g. 20 mOhm) and the
max. continuous current, max. Voltage, vibration resistance and
reliability etc. Of course, this makes good connectors somewhat
'expensive'. Hirel and non-magnetic gold plated D- subminiture type
connectors do survive e.g. the rocket launch phase (high vibrations),
vacuum and low temperatures and are still used for space projects.
The D-sub series of connectors was introduced by Cannon in 1952. They
are still available as standard, hirel, and non-magnetic versions. The
contacts were machined contacts forcrimping or soldering connection and
made of massive copper with gold finish. (more see e.g.
https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
big number of companies producing equivalent types. Cheap ones are
equipped with contacts made of sheetmetal. Nobody should expect then the
same spec. values as reliability, mating numbers, contact power rating etc.
It is up to the designer of a product to be informed and select the
right quality device for his product ...
I hope I could enlight a bit the connector selection and nomenclature point.
regards, 73
Arnold, DK2WT
Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
> Hi,
>
> The second connect has been called "Cannon" and XLR, and is not
> generally recogniced as XLR, which is the product range name.
>
> Naming of the first connector as "Cannon" is at least for me and many
> others confusing. This is a good example how vendor name for a
> connector type is not a good thing. The first connector is a circular
> MIL-STD connector (don't remember the correct notation), and this is a
> product available from ITT Cannon as well as AMP.
>
> Cheers,
> Magnus
>
> On 06/22/2017 08:42 PM, Mark Spencer wrote:
>> Sorry if I have caused any un due confusion thru my perhaps incorrect
>> use of the terms "cannon" and "XLR."
>> The green connector with 4 separate female contacts is what I
>> perhaps in correctly referred to as a "cannon" connector. The silver
>> connector with 3 separate female contacts was what I perhaps
>> incorrectly referred to as a "XLR" connector.
>>
>> Both were in use in my lab powering time nuts gear.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> Mark Spencer
>>
>> mark@alignedsolutions.com
>>
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
WH
William H. Fite
Thu, Jun 22, 2017 11:22 PM
A good friend of mine, sadly of blessed memory, was a lead engineer for
Grumman on the comm systems of the lunar lander. He spoke of small
space-rated multi-pin connectors that cost upward of $500 each.
On Thursday, June 22, 2017, Arnold Tibus arnold.tibus@gmx.de wrote:
Hello,
I can second Magnus and want to throw in some more details.
Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
companies manufacturing all kind of connectors and are n o t connector
type designations! Important are the type numbers of the manufacturer or
higher level specification numbers.
We used in the aircraft and spacecraft business naturally the military
(MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
no). Most types of connectors are under these numbers available from
different manufacturers, of course with different manufacturer in house
part numbers. Attention: the 'same' connectors may be bought w/o the
Mil.-spec. sheets with somewhat lesser quality. Important details are
the max. mating number, the contact resistance (e.g. 20 mOhm) and the
max. continuous current, max. Voltage, vibration resistance and
reliability etc. Of course, this makes good connectors somewhat
'expensive'. Hirel and non-magnetic gold plated D- subminiture type
connectors do survive e.g. the rocket launch phase (high vibrations),
vacuum and low temperatures and are still used for space projects.
The D-sub series of connectors was introduced by Cannon in 1952. They
are still available as standard, hirel, and non-magnetic versions. The
contacts were machined contacts forcrimping or soldering connection and
made of massive copper with gold finish. (more see e.g.
https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
big number of companies producing equivalent types. Cheap ones are
equipped with contacts made of sheetmetal. Nobody should expect then the
same spec. values as reliability, mating numbers, contact power rating etc.
It is up to the designer of a product to be informed and select the
right quality device for his product ...
I hope I could enlight a bit the connector selection and nomenclature
point.
regards, 73
Arnold, DK2WT
Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
Hi,
The second connect has been called "Cannon" and XLR, and is not
generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many
others confusing. This is a good example how vendor name for a
connector type is not a good thing. The first connector is a circular
MIL-STD connector (don't remember the correct notation), and this is a
product available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect
use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I
perhaps in correctly referred to as a "cannon" connector. The silver
connector with 3 separate female contacts was what I perhaps
incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com javascript:;
time-nuts mailing list -- time-nuts@febo.com javascript:;
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
--
William H Fite, PhD
Independent Consultant
Statistical Analysis & Research Methods
A good friend of mine, sadly of blessed memory, was a lead engineer for
Grumman on the comm systems of the lunar lander. He spoke of small
space-rated multi-pin connectors that cost upward of $500 each.
On Thursday, June 22, 2017, Arnold Tibus <arnold.tibus@gmx.de> wrote:
>
> Hello,
>
> I can second Magnus and want to throw in some more details.
> Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
> companies manufacturing all kind of connectors and are n o t connector
> type designations! Important are the type numbers of the manufacturer or
> higher level specification numbers.
> We used in the aircraft and spacecraft business naturally the military
> (MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
> no). Most types of connectors are under these numbers available from
> different manufacturers, of course with different manufacturer in house
> part numbers. Attention: the 'same' connectors may be bought w/o the
> Mil.-spec. sheets with somewhat lesser quality. Important details are
> the max. mating number, the contact resistance (e.g. 20 mOhm) and the
> max. continuous current, max. Voltage, vibration resistance and
> reliability etc. Of course, this makes good connectors somewhat
> 'expensive'. Hirel and non-magnetic gold plated D- subminiture type
> connectors do survive e.g. the rocket launch phase (high vibrations),
> vacuum and low temperatures and are still used for space projects.
>
> The D-sub series of connectors was introduced by Cannon in 1952. They
> are still available as standard, hirel, and non-magnetic versions. The
> contacts were machined contacts forcrimping or soldering connection and
> made of massive copper with gold finish. (more see e.g.
> https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
> 9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
> big number of companies producing equivalent types. Cheap ones are
> equipped with contacts made of sheetmetal. Nobody should expect then the
> same spec. values as reliability, mating numbers, contact power rating etc.
> It is up to the designer of a product to be informed and select the
> right quality device for his product ...
>
> I hope I could enlight a bit the connector selection and nomenclature
> point.
>
> regards, 73
>
> Arnold, DK2WT
>
>
>
> Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
> > Hi,
> >
> > The second connect has been called "Cannon" and XLR, and is not
> > generally recogniced as XLR, which is the product range name.
> >
> > Naming of the first connector as "Cannon" is at least for me and many
> > others confusing. This is a good example how vendor name for a
> > connector type is not a good thing. The first connector is a circular
> > MIL-STD connector (don't remember the correct notation), and this is a
> > product available from ITT Cannon as well as AMP.
> >
> > Cheers,
> > Magnus
> >
> > On 06/22/2017 08:42 PM, Mark Spencer wrote:
> >> Sorry if I have caused any un due confusion thru my perhaps incorrect
> >> use of the terms "cannon" and "XLR."
> >> The green connector with 4 separate female contacts is what I
> >> perhaps in correctly referred to as a "cannon" connector. The silver
> >> connector with 3 separate female contacts was what I perhaps
> >> incorrectly referred to as a "XLR" connector.
> >>
> >> Both were in use in my lab powering time nuts gear.
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> Mark Spencer
> >>
> >> mark@alignedsolutions.com <javascript:;>
> >>
> >>
> >>
> >> _______________________________________________
> >> time-nuts mailing list -- time-nuts@febo.com <javascript:;>
> >> To unsubscribe, go to
> >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> >> and follow the instructions there.
> >>
> > _______________________________________________
> > time-nuts mailing list -- time-nuts@febo.com <javascript:;>
> > To unsubscribe, go to
> > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> > and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com <javascript:;>
> To unsubscribe, go to https://www.febo.com/cgi-bin/
> mailman/listinfo/time-nuts
> and follow the instructions there.
>
--
William H Fite, PhD
Independent Consultant
Statistical Analysis & Research Methods
BK
Bob kb8tq
Thu, Jun 22, 2017 11:33 PM
Hi
You can get and use PP’s at 30 to 50A in a 12V circuit without frying them or the cable they are
attached to. Doing the same with a “Cannon” connector is not at all easy ….You can also bump up
to the larger PP’s and get into a couple of hundred amps.
Bob
On Jun 22, 2017, at 6:54 PM, Arnold Tibus arnold.tibus@gmx.de wrote:
Hello,
I can second Magnus and want to throw in some more details.
Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
companies manufacturing all kind of connectors and are n o t connector
type designations! Important are the type numbers of the manufacturer or
higher level specification numbers.
We used in the aircraft and spacecraft business naturally the military
(MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
no). Most types of connectors are under these numbers available from
different manufacturers, of course with different manufacturer in house
part numbers. Attention: the 'same' connectors may be bought w/o the
Mil.-spec. sheets with somewhat lesser quality. Important details are
the max. mating number, the contact resistance (e.g. 20 mOhm) and the
max. continuous current, max. Voltage, vibration resistance and
reliability etc. Of course, this makes good connectors somewhat
'expensive'. Hirel and non-magnetic gold plated D- subminiture type
connectors do survive e.g. the rocket launch phase (high vibrations),
vacuum and low temperatures and are still used for space projects.
The D-sub series of connectors was introduced by Cannon in 1952. They
are still available as standard, hirel, and non-magnetic versions. The
contacts were machined contacts forcrimping or soldering connection and
made of massive copper with gold finish. (more see e.g.
https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
big number of companies producing equivalent types. Cheap ones are
equipped with contacts made of sheetmetal. Nobody should expect then the
same spec. values as reliability, mating numbers, contact power rating etc.
It is up to the designer of a product to be informed and select the
right quality device for his product ...
I hope I could enlight a bit the connector selection and nomenclature point.
regards, 73
Arnold, DK2WT
Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
Hi,
The second connect has been called "Cannon" and XLR, and is not
generally recogniced as XLR, which is the product range name.
Naming of the first connector as "Cannon" is at least for me and many
others confusing. This is a good example how vendor name for a
connector type is not a good thing. The first connector is a circular
MIL-STD connector (don't remember the correct notation), and this is a
product available from ITT Cannon as well as AMP.
Cheers,
Magnus
On 06/22/2017 08:42 PM, Mark Spencer wrote:
Sorry if I have caused any un due confusion thru my perhaps incorrect
use of the terms "cannon" and "XLR."
The green connector with 4 separate female contacts is what I
perhaps in correctly referred to as a "cannon" connector. The silver
connector with 3 separate female contacts was what I perhaps
incorrectly referred to as a "XLR" connector.
Both were in use in my lab powering time nuts gear.
Mark Spencer
mark@alignedsolutions.com
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
Hi
You can get and use PP’s at 30 to 50A in a 12V circuit without frying them or the cable they are
attached to. Doing the same with a “Cannon” connector is not at all easy ….You can also bump up
to the larger PP’s and get into a couple of hundred amps.
Bob
> On Jun 22, 2017, at 6:54 PM, Arnold Tibus <arnold.tibus@gmx.de> wrote:
>
>
> Hello,
>
> I can second Magnus and want to throw in some more details.
> Cannon, Deutsch, Bendix, Souriau, Matrix, Amphenol, etc. etc. are (big)
> companies manufacturing all kind of connectors and are n o t connector
> type designations! Important are the type numbers of the manufacturer or
> higher level specification numbers.
> We used in the aircraft and spacecraft business naturally the military
> (MS-) numbers listed in the MIL-QPL (or eg. for Spacelab with GSFC spec.
> no). Most types of connectors are under these numbers available from
> different manufacturers, of course with different manufacturer in house
> part numbers. Attention: the 'same' connectors may be bought w/o the
> Mil.-spec. sheets with somewhat lesser quality. Important details are
> the max. mating number, the contact resistance (e.g. 20 mOhm) and the
> max. continuous current, max. Voltage, vibration resistance and
> reliability etc. Of course, this makes good connectors somewhat
> 'expensive'. Hirel and non-magnetic gold plated D- subminiture type
> connectors do survive e.g. the rocket launch phase (high vibrations),
> vacuum and low temperatures and are still used for space projects.
>
> The D-sub series of connectors was introduced by Cannon in 1952. They
> are still available as standard, hirel, and non-magnetic versions. The
> contacts were machined contacts forcrimping or soldering connection and
> made of massive copper with gold finish. (more see e.g.
> https://en.wikipedia.org/wiki/D-subminiature). Example for the standard
> 9 pin connector designation (crimp): DEMAM-9S and DEMAM-9P. Today are a
> big number of companies producing equivalent types. Cheap ones are
> equipped with contacts made of sheetmetal. Nobody should expect then the
> same spec. values as reliability, mating numbers, contact power rating etc.
> It is up to the designer of a product to be informed and select the
> right quality device for his product ...
>
> I hope I could enlight a bit the connector selection and nomenclature point.
>
> regards, 73
>
> Arnold, DK2WT
>
>
>
> Am 22.06.2017 um 21:10 schrieb Magnus Danielson:
>> Hi,
>>
>> The second connect has been called "Cannon" and XLR, and is not
>> generally recogniced as XLR, which is the product range name.
>>
>> Naming of the first connector as "Cannon" is at least for me and many
>> others confusing. This is a good example how vendor name for a
>> connector type is not a good thing. The first connector is a circular
>> MIL-STD connector (don't remember the correct notation), and this is a
>> product available from ITT Cannon as well as AMP.
>>
>> Cheers,
>> Magnus
>>
>> On 06/22/2017 08:42 PM, Mark Spencer wrote:
>>> Sorry if I have caused any un due confusion thru my perhaps incorrect
>>> use of the terms "cannon" and "XLR."
>>> The green connector with 4 separate female contacts is what I
>>> perhaps in correctly referred to as a "cannon" connector. The silver
>>> connector with 3 separate female contacts was what I perhaps
>>> incorrectly referred to as a "XLR" connector.
>>>
>>> Both were in use in my lab powering time nuts gear.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> Mark Spencer
>>>
>>> mark@alignedsolutions.com
>>>
>>>
>>>
>>> _______________________________________________
>>> time-nuts mailing list -- time-nuts@febo.com
>>> To unsubscribe, go to
>>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>> and follow the instructions there.
>>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts@febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts@febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
