FF-844 is the new Fieldbus Foundation cable compliance specification. FF-844 includes the electrical requirements of ISA 50.02 and IEC 61158, but it also contains some additional requirements which help you know your cable is the right cable for use in FOUNDATION fieldbus control networks.

Cable certified by the Foundation must be UL ITC and PLTC listed. What does that mean? At a minimum, it means these cables meet important mechanical strength requirements and are UL listed to comply with the National Electric Code.

Please click 'FOUNDATION Fieldbus Cables Explained' to donwload the paper by Northwire

(Black Box) In order to successfully use NEMA standard publications, it is important for the user to understand what NEMA standards are and what types of information they contain. This brief introduction is further explained in the NEMA publication, Standardization Policies and Procedures.

Determining if you’ve found the standard (or other technical document) you need

NEMA publishes five basic types of technical documents, each with slightly different audiences in mind:

• Specifiers

• Installers

• Contractors

• Inspectors

• MRO (Maintenance/Repair/Operations)

• Engineers and Designers

To completely read this guide by Black Box please click 'How to Read a NEMA Standard'

Voice over Internet Protocol, or VoIP, is a great cost-saving alternative to traditional telephone service that enables voice data to be transported over IP networks, like the Internet, instead of the public switched telephone network (PSTN) or a cellular network.

Because VoIP is inexpensive, has a worldwide reach, and operates on a few simple principles, it’s exploded in popularity in recent years—especially among both small and large businesses that incur significant long-distance telephone expenses. However, it’s not all fun and free calls. Below are six things to consider when you’re deciding whether or not to invest in VoIP.

Continue reading this technical guide by Black Box

A solution is provided by ProSoft for Modbus TCP to Modbus RT using module RLX-IFH24E. Please click 'RLX-IFH24E' to further read this technical guide.