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TECHtionary.com Friday TECH-Tip – VOIP Power Issues
[June 10, 2005]

TECHtionary.com Friday TECH-Tip – VOIP Power Issues


TECHtionary.com Friday TECH-Tip – VOIP Power Issues

Since most VoIP telephone sets require an external power source (not powered inline), planning for power is as important as the telephone set itself.

This tutorial is available at http://www.techtionary.com



This TECH-Topic focuses on VoIP power. Based on the NIST recommendations regarding VoIP deployment, we wanted to give you some guidance in this area and note that this technology is "Under Construction." NIST Recommendation - Evaluate costs for additional power backup systems that may be required to ensure continued operation during power outages.



TECHtionary analysis is that most VoIP phones and soft phones require power. Customers should add power injectors, backup power and generators to all critical functions including diverse wiring to emergency centers. According to industry sources, there are not uniform implementation of standards with regard to PIN assignments and voltages provided or required. Here are some of the options with output DC-Direct Current voltage on the same PIN (metal connectors) and RJ-Registered Jack types as data connections:
- Single port injector - used for a small number of devices
- Multi-port injectors - used for a large number of devices (e.g. 50+)
- Active Taps - transform input DC voltage to a different DC voltage
- Passive Taps - same DC output voltage as input DC voltage
- Passive injectors - insert power withOUT short-circuit (lightning, etc.) or over-current protection
- Active injectors or Fault-Protected provide continuous monitoring of short-circuit conditions and out-of-range current (surges, sags) protection.

NOTE: Check with the manufacturer for specific options.
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TECHtionary Corporation founded in 2001 and headquartered in Boulder, Colorado is the World's First and Largest Animated (rich media) Library/Magazine on Technology. Get the analysis and more than 2,570+ FREE tutorials on data, internet, wireless, VoIP-Voice over Internet Protocol (internet telephony), PBX systems, central office switching, protocols, telephony, telecommunications, networking, routing, power systems, broadband, WiFi-Wireless Fidelity and other technologies, TECHtionary.com provides "just enough – just-in-time" critical success information. TECHtionary.com received Web Hosting Editors’ Choice for Best Technical Help. TECHtionary.com also produces web infomercials proven to "increase revenues, decrease customer support costs and increase customer satisfaction."

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