All Questions
12
questions
0
votes
2
answers
4k
views
How should I test my USB cables?
Some time ago, I purchased the FNB58 USB multimeter from FNIRSI with the intention of testing some of my USB cables. Ideally, I wanted to throw away those that are redundant and/or those that pose a ...
- 121
-1
votes
1
answer
346
views
How to connect LEDs to D+ and D- of USB 3.0 cable [closed]
I need to connect LEDs to USB 3.0 cable that connect to PC and to embedded device.
I want visual control to see data transfer by this USB cable and want to connect LEDs for this purpose, like Ethernet ...
- 15
2
votes
2
answers
4k
views
1
vote
3
answers
292
views
Are there multiple bits on a data cable at the same time?
Let's say there is a copper under sea cable from New York to Lisbon with a length of 5350km.
Then a signal needs approx. t = 5350km/c ≈ 19ms to arrive.
Now let's imagine sending a file from New York ...
- 619
10
votes
6
answers
15k
views
Is it necessary to separate DC power cables and data cables?
I have had this discussion with my colleague earlier. A DC power supply is non-alternating, so the magnetic field a DC power wire generates is constant (is it?). Now, I know the rule is to separate ...
- 701
6
votes
2
answers
3k
views
Ethernet shielding termination
With regard to termination of ethernet shielding I have been taught always to terminate only ONE end of the shielding to ground to prevent ground loops occurring.
Is this best practice?
and is there ...
- 197
0
votes
1
answer
67
views
Which standard use for custom communication DC
I want to transmit data and power over 10 meters at 12 volts with 1 amp. I don't know if I could do it using UTP, because that's a standard for other things. Which standard should I choose? Number of ...
- 13
11
votes
5
answers
2k
views
Why don't we use 7075 aluminum Ethernet and USB cables?
Since the skin depth of copper at 1Ghz is about 2.3 micrometers, it doesn't seem like aluminum would provide a worse signal to noise ratio.
7075 aluminum is also much more resilient and stronger than ...
- 233
1
vote
1
answer
10k
views
USB Charge and data separate cables
Is it possible to split micro USB to USB cable so two cables (data + and data -) go to the PC with USB and two other power cables go to power brick?
- 13
0
votes
1
answer
378
views
Throughput and speed of data transmission cables [duplicate]
What are throughput and speed limiting factors in an ethernet or any other type of cable which is used for data transmission?
- 531
5
votes
3
answers
7k
views
2.5mm Jack to USB data Cable
I was recently diagnosed with Type 1 diabetes. With the need to test my own blood upwards of 8 times a day I have a ton of data to keep track of. My testing unit has the ability to upload its data to ...
- 185
9
votes
1
answer
7k
views
What should I know about interference between wires in a multi-conductor cable?
I want to use a multi-conductor cable for a few different circuits. What do I need to know about interference between circuits within a multi-conductor cable?
Some of the wires will carry stepper ...
- 611