E1.20 RDM (Remote Device Management) Protocol Forums  

Go Back   E1.20 RDM (Remote Device Management) Protocol Forums > Search Forums

Showing results 1 to 2 of 2
Search took 0.00 seconds.
Search: Posts Made By: ericthegeek
Forum: RDM Physical Layer/Hardware Discussion August 5th, 2008
Replies: 7
Views: 12,144
Posted By ericthegeek
In your initial post, you described the problem...

In your initial post, you described the problem at 5v. Are you seeing the problem with with 5v line drivers, or only under common mode conditions?

One option might be to build a separate...
Forum: RDM Physical Layer/Hardware Discussion August 4th, 2008
Replies: 7
Views: 12,144
Posted By ericthegeek
The R1 bias resistor is recommended to be 562...

The R1 bias resistor is recommended to be 562 ohm. If the 485 line is driven to 5v, you're looking at (5v-3.3v)/562ohm = 3mA. As for pulling your power supply out of spec, 3mA is no worse than a...
Showing results 1 to 2 of 2

 
Forum Jump

All times are GMT -6. The time now is 01:15 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.