help with German

Dec 11, 2012 111 Replies

What do these mean? (It's about CAT6 cables)


ACR (graph is dB vs freq, sloping up from about -100 at 1 MHz)



Power Sum ACR (similar)



EL FEXT (similar)



Power Sum EL (similar)



Wellendämpfung (slopes down)



Eingangsreflexion (flattish, -30 dB)



Vierpoldämpfung (slopes down from 0 dB)



Kapazitätsbelag (5-ish nF per 100m vs freq, looks like capacitance)



LCL (Scd11) (messy)



Induktivitätsbelag (about 40 uH/100m)



Laufzeit (about 440 ns/100m... looks like Tpd?)



Laufzeit, Differenz (skew?)



Laufzeit, Diff. Paar (also skew?)



Phasenbelag (straight line, probably phase vs freq)



Widerstandsbelag



SRL



Eingangsimpedanz


Here's the doc:



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John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

I'll give it a go and let Joerg kick in..

Wave attenuation

Input reflection (flat, -30dB)

4th pole attenuation

nce)

Capacitance value

Inductance value

Propagation delay (delay line)

Differential propagation delay

Differential propagation delay, betweeen pairs

Phase value

Resistance value

Input impedance

Thanks, Klaus, that helps.

--

John Larkin Highland Technology, Inc

jlarkin at highlandtechnology dot com

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Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

I've had german in school (just like Klaus I assume) so it is easy for me to say, but I'm curious is it really that hard to guess what those german terms mean ?

-Lasse

Larkin was too busy shooting pee-cans to study German >:-} Being from the hillbilly state of West Virginia I was required to take at least one semester each of French, German and Spanish in Middle School. ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

Where all you learned was how to say "where's the nearest pork barbecue res taurant?"

Some are obvious from the units, like capacitance. Some are less clear.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

So translate, moron.

But pee-cans? Your excretory obsessions are showing again. And make up your mind: you have claimed that I never shot a .22 and now you claim I did it too much. Senile old git.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

Klaus, I think you'd still pass German if you had to sit for the exam again.

Ok, here goes. Disclaimer: To the best of my knowledge but I have not used or spoken technical German since I got my degree. And that's a whole long time ago.

So if one of the other Germans could take a peek that would be nice. Klaus Bahner? Oh wait, I think he my have been in Denmark for too long. Maybe Uwe Hercksen?

So far so good, but this one means attenuation from input port to output port. "Vierpol" is usually translated as "two-port network".

Specific capacitance per unit length.

Usually all in them thar metric hunnerd meidahrs :-)

Inductance per unit length.

Group delay variation (between the various tested samples).

Group delay for a diff pair.

Phase change per unit length. This is a weird one, haven't heard it in decades.

Resistance per unit length.

Well, while writing this I received an email in Portuguese.

Regards, Joerg http://www.analogconsultants.com/

in.

)

can always try

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:P

-Lasse

[...]

For colloquial stuff that's ok but otherwise those auto-translators are horrid. For example, for "Widerstandsbelag" it comes up with "resistance coating". Not sure where one would get that. Maybe at a paint store?

Regards, Joerg http://www.analogconsultants.com/

Well, OK, you get a beer.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

restaurant?"

No, that's only taught in white trash schools, in big cities.

You've _NEVER_ heard it pronounced that way?

Or from the Borg?

John Larkin schrieb:

Hello,

-belag is used for values depending on the length of the cable. The unit length is here 100 m. Kapazitätsbelag : capacitance per 100 m length Induktivitätsbelag : inductance per 100 m length Widerstandsbelag : resitance per 100 m length Phasenbelag : phase change per 100 m length, depending on frequency

Bye

What's confusing to folks who don't know German too well is that "Belag" is also used for lots of other things. Plaque that accumulates on teeth, the ugly yellowish coating on a tongue, a road surface, toppings on a pizza, and so on.

Regards, Joerg http://www.analogconsultants.com/

In New York and California boutique food stores, yes. Down south, we called them pah-cawns.

JT is obsessed with all things excretory. I guess that's what they learn at MIT.

--

John Larkin Highland Technology Inc

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jlarkin at highlandtechnology dot com

Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

Interesting language, minimizes whitespace. That must make parsers harder to write.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

restaurant?"

Hi there, Fred. I have you plonked, so I had to back you out of a Terrell troll feed.

I hear you and Paul Schoen are now living together >:-}

BTW, village idiot, pork barbecue ISN'T a West Virginia kind of thing. We're more into venison. ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

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