VM110N Module Via USB lenght cable?

Kits PC Related Projects
1

Hello all,

I’m using a VM110N to connect 4 pushbuttons to the board via the digital input ports and then I capture the “Push” on a client computer for futher actions. The cable I use between the board and the buttons is a shield UTP cable where I only use 2 cables.
I now have a requirement where I need to place the button 60 meters from the board. Would the signal be strong enough to capture the push on the button?
If not what are my options?

Thanks for the feedback!

2

There should not be any problems using shielded twisted pair cable.

[quote]Would the signal be strong enough to capture the push on the button?[/quote]Yes. You can connect the buttons between the digital inputs and GND terminal. There are 20k pull-up resistors on the board. No need for external power supply.

3

So the distance of 60 meters is not a problem?

4

No problem using shielded twisted pair cable.

5

Thanks man!

6

Now my client want to know what the maximum lenght could be of that cable?
Any idea?

7

There is no limit for the length if shielded twisted pair cable is used.

8

And what if its not shielded? Because I non know its not going to lay with other power cables…
Thanks for the answers!

9

[quote]And what if its not shielded?[/quote] The purpose of shielding is canceling out electromagnetic interference (EMI) from external sources.
If the environment is not electromagnetically very “noisy”, it may be OK to use unshielded twisted pair (UTP) cable.
en.wikipedia.org/wiki/Twisted_pair