PL-ADIN LED indication on Digital Inputs?

[hfx987]

Hello,

I have 4 on / off switches on a little panel i made connected to pins 2 - 5 on my ADIN card, shunting to ground - and its working great.

I was wondering if i can put a 20mA LED and appropriate resistor in the path after the switch to get local indication of which of the switches is on

Im assuming we are shunting a voltage (5v? 10v?) to ground for it to work

Ive resisted putting a multimeter across it to measure - incase i were to damage anything.

Has anyone been braver than me?

Thanks

Sam.