Understanding Power Supply and Ethernet Adapter Wiring"

AI Thread Summary
The discussion focuses on connecting a 24V DC power supply to an I/O Ethernet Adapter, highlighting confusion around wiring terminology. The power supply has positive and negative terminals, while the adapter features NC, Chassis Ground, Common (C), and V (Supply) connections. It is suggested to connect the negative terminal to "Common" and the positive to "Supply," with "Chassis" potentially connected to an earth ground for noise protection. The distinction between Common and Chassis Ground is noted, emphasizing the importance of avoiding ground loops by connecting them at only one point in the system. The internal power bus connection indicates that the DC supply feeds directly into the adapter's power lines.
gyroElec
Messages
2
Reaction score
0
I'm trying to hook up my power supply to I/O Ethernet Adapter, and am getting confused with the wiring terminology.

The power supply is 24V DC (+/- terminals) and the Ethernet Adapter has NC, Chassis Ground, Common (C), and V (Supply).

I guess I am getting confused with what exactly Common and Chassis Ground are, and what I'm connecting the +/- to?

Thanks.
 
Engineering news on Phys.org
I would put minus on "Common" and plus on "Supply". You might connect "Chassis" to a water pipe or other earth-grounded thingie to provide a little noise and interference protection. Usually chassis and common are connected together someplace in a system and it is best to do that in only one place to avoid "ground loops", so that's probably why they are separate on your box.
 
What does it mean when it says that the DC supply will be connected to the internal power bus?
 
It probably means that the DC supply goes directly to the supply lines (buss) of the thing. I can't think of a way to say that any clearer, sorry...
 
Thread 'Weird near-field phenomenon I get in my EM simulation'

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...
View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...
View full post »

Similar threads

Sizing an Isolation Transformer for a DC Power Supply
Replies
8
Views
2K
How do I properly connect a bench power supply to a pulse generator for testing?
Replies
19
Views
2K
Can power supplies/adapters be used to clean up dirty generator power?
2
Replies
61
Views
9K
AC-DC Power Supply Modules: Non-Isolated Topology
Replies
11
Views
2K
Fried my power supply by doing a bad thing
Replies
36
Views
4K
How to use a bench power supply
Replies
9
Views
4K
Negative Power Supply Clarification
Replies
7
Views
1K
"Ground" and "Center Tapped" Power Transformer Secondary in guitar amp
Replies
6
Views
3K
Connect isolated ground to Earth?
Replies
3
Views
2K
Creating oscillations on the output of a DC power supply
Replies
11
Views
3K

Hot Threads

Recent Insights

Back
Top