Global Sources
EE Times-India
Stay in touch with EE Times India
EE Times-India > Power/Alternative Energy
Power/Alternative Energy  

Address cross-wire faults in e-metering networks

Posted: 18 Mar 2014     Print Version  Bookmark and Share

Keywords:Electricity metering  e-metering  data-transmission  RS-485  network 

Electricity metering (e-metering) for commercial and residential applications is heavily dependent on long-haul, differential data-transmission networks based on the TIA/EIA-485 standard commonly referred to as RS-485. In order to overcome the large ground-potential differences often encountered between remotely located bus nodes, each node is galvanically isolated, with regards to signal and supply lines, from the local e-metering circuitry.

The e-metering network is a typical master/slave system in which a host processor in the master node (located in a control centre) sequentially addresses multiple slave nodes (located in the individual end customer's premises) along the bus.

With a single network comprising up to 60 nodes typically, the potential for unintentionally cross-wiring the two conductors of the twisted-pair bus cable can be rather high, if neither preventive measures during network installation nor corrective measures during network operation are applied.

View the PDF document for more information.

Originally published by Texas Instruments at as "Correcting cross-wire faults in modern e-metering networks".

Comment on "Address cross-wire faults in e-meter..."
*  You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.


Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

Back to Top