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6 Things to consider before investing in VoIP

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

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How to Read a NEMA Standard

(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'

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How to Choose the Right Bus for Your Measurement System

National Instruments: When you have hundreds of different data acquisition (DAQ) devices to choose from on a wide variety of buses, it can be difficult to select the right bus for your application needs. Each bus has different advantages and is optimized for throughput, latency, portability, or distance from a host. This white paper examines the most common PC bus options and outlines the technical considerations to keep in mind when choosing the right bus for your measurement application.

To further read this article please click 'How to Choose the Right Bus for Your Measurement System'

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How to Setup for wireless link between Modbus TCP and Modbus RTU

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.

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What is Fieldbus ? An Introduction to Fieldbus

A Technical paper from Foundation Fieldbus. Introduction and basics about PROFIBUS PA and FOUNDQATION FIELDBUS F1 and how it works.

Please click here to download the paper 'An Introduction to Fieldbus'

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