Power (445)

Displaying 'Power' tags 376 - 400 of 445 in total

PoE Door Strike?

A true PoE / network door strike would reduce costs and simplify installations considerably. Indeed, one access control vendor is marketing a PoE strike. However, what real benefits does this PoE strike deliver? Is it a true innovation or a...

By Brian Rhodes - almost 10 years ago

Battery Backup for Outdoor Cameras

Pole-mounting cameras, especially for use in parking lots and municipal surveillance systems, is a growing trend. However, power in these locations may be unreliable, subject to fluctuations and outages. Supplying backup power to cameras and...

By Ethan Ace - almost 10 years ago

Solar Surveillance Guide

Off-grid solar power is gaining attention for video surveillance. In this article, we examine what video surveillance applications are typically used with solar power, examine what key factors affect the design and cost of solar power systems, and...

By John Grocke - almost 10 years ago

How to Measure IR Illumination

Using IR for night time surveillance is a popular choice. The added non visible light can improve image quality when ambient street or visible lighting is absent. However, adding the right amount of IR light can be challenging. Add too much and...

By John Honovich - almost 10 years ago

Altronix eBridge Examined

While Ethernet over Coax (EoC) adapters have allowed existing analog camera cables to be reused for some time, they have seen limited adoption. The biggest hindrance to their widespread use is price, with most units costing as much as, or more...

By Ethan Ace - almost 10 years ago

Reusing Existing Coax Cabling (EoC) Tutorial

The coaxial cables which transmit most analog CCTV video can be reused when migrating to IP cameras. The technology to do so, most often referred to as Ethernet over Coax (or EoC), is mature and available from a variety of vendors. The challenge...

By Ethan Ace - almost 10 years ago

Q-Star Flashcam Examined

Monitoring criminal hotspots, where graffiti, drug transactions, and dumping are taking place is a common need of municipalities. However, this can be challenging as criminals often target areas where lighting is poor, and infrastructure may not...

By Ethan Ace - almost 10 years ago

March Mobile Overview

In this update, we will examine the mobile recording offering of surveillance provider March Networks.Product OverviewThe March mobile [link no longer available] recorder line consists of two models, the 5412 [link no longer available]...

By Ethan Ace - almost 10 years ago

Cooling Surveillance Systems

An IPVM survey and discussion addressed the topic of “How often, if ever, do you add additional cooling measures to rack/ equipment rooms?” The survey results show that 70% of the respondents replied “0-20% of installs” indicating that it is not...

By Ben Wood - almost 10 years ago

Louroe Audio Surveillance Review

When discussing audio for security applications, Louroe Electronics is normally the first name that comes up. In previous discussions [link no longer available] on our LinkedIn group, nearly every member commented support for Louroe. In this...

By Ethan Ace - almost 10 years ago

Hard Drive Failure Statistics 2012

Hard drive failures are possibly the number one reason for lost video in the surveillance industry. To get a better idea of how long drives last in the field and most common causes of failure, we asked two questions of integrators in our Winter...

By Ethan Ace - about 10 years ago

UPS Deployment Statistics

Providing backup power for equipment is generally accepted as best practice in surveillance systems. An unexpected power loss can result in lost video or create issues when servers or DVRs are shut down unexpectedly. However, UPSs add cost. In...

By Ethan Ace - about 10 years ago

Cabin Security System

A PRO member recently asked for recommendations to secure a cabin in a remote location, with no power or internet connectivity. We posed the question on LinkedIn, discussing a number of options. In this update, we'll look at these options, the...

By Ethan Ace - about 10 years ago

Powerline Networking for Surveillance Overview

Providing network connectivity to cameras in remote locations is a constant issue in the surveillance industry. Wireless gear can handle many applications, but line of sight and aesthetics may still be issues. Powerline networking has been in use...

By Ethan Ace - about 10 years ago

Gigabit Wireless Surveillance Review (802.11ac)

This month, an upcoming wireless standard called 802.11ac, more colloquially known as 'Gigaibit Wifi' is starting to gain significant attention. At the CES show, a number of large mainstream electronic vendors including Broadcom [link no longer...

By Ethan Ace - about 10 years ago

Veracity PointSource Reviewed

If you are field testing or trying to determine how well a camera will work in a specific location, it can be a pain to setup - getting power, running cables, connecting a camera and laptop to a switch, etc. In our December Portable Power report,...

By Ethan Ace - about 10 years ago

Portable Power for Video Surveillance

Sometimes you need power for your video surveillance equipment but do not have convenient access to mains electricity. Common examples of this include: Demonstrating or trying out a camera in the field to see the quality and coverage area of...

By Ethan Ace - about 10 years ago

Ubiquiti Wireless Surveillance Review

Ubiquiti's wireless radios have become a popular choice for video surveillance applications. While they are extremely inexpensive, it can be difficult to determine when to use and NOT use them. Equally importantly, because Ubiquiti has so many...

By Ethan Ace - about 10 years ago

Using Fiber Optics for Surveillance

In using fiber for surveillance applications, there are typically two scenarios that users must address: backbone between two switches and directly to the camera. In this update, we'll address the separate concerns of each, and provide our...

By Ethan Ace - about 10 years ago

Illuminar 1030nm 'Invisible' IR Illuminator

Iluminar has announced a new IR illuminator for use in 'super' covert applications. Iluminar claims this model is completely invisible due to 1030nm IR LEDs, unlike 850nm or even 940nm LEDs, typically regarded as covert. In this note, we examine...

By Ethan Ace - about 10 years ago

Surveillance Manufacturer Revenue Directory 2011

In this report, we organize and share annual revenue of 25 leading video surveillance companies. Revenue numbers are often useful for businesspeople and investors to better understand size and relative power of players in a market. That noted,...

By John Honovich - about 10 years ago

Ubiquiti Aircam Bullet Test

Can a $100 HD network camera change the surveillance industry? We are about to find out as Ubiquiti, a company whose massive growth has disrupted the wireless network industry commences its attack on the video surveillance market. What makes...

By John Honovich - about 10 years ago

Audio for Surveillance Systems Tutorial

One topic on which we regularly receive questions is the use of audio in surveillance systems, and what products and installation standards should be used. In this update, we'll cover the basics of using audio with IP surveillance systems...

By John Honovich - over 10 years ago

Hardware and Accessories Buyer's Guide

Hardware What type of hardware your surveillance server will require differs between manufacturers. The manufacturer's documentation or tech support should always be consulted before purchasing hardware. Each system handles video in a different...

By John Honovich - over 10 years ago

Multi-Port Ethernet Over Coax Converter

Nitek has announced two new multi-port Ethernet over coax converters, the eight-port EL8500 and sixteen-port EL16500. While some vendors provide power over the coax (such as NVT [link no longer available] and Veracity), and others provide a...

By Ethan Ace - over 10 years ago

Displaying 'Power' tags 376 - 400 of 445 in total