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Basic IP Wireless and Wired Security Camera and DVR Installation Information

Updated on April 20, 2014

Basic IP and DVR Security Camera Information

The focus of this publication is on network servers, power supplies, signal transmission and limited Internet Protocol for three types of security camera systems. This will distinguish differences between an IP camera system, hard wired DVR camera system and a wireless camera system.

Internet Network Server

An internet Network Server is a device serving an internet signal to a remote location on the internet. The device has the capability of being controlled with the proper set up at a remote computer or cell phone. Computers, DVR’s and IP cameras are devices with this ability.

An IP camera has its own internet network server inside of the camera. This means the camera is capable of sending its signal directly to the internet through a router to a cell phone or computer. A security DVR also serves as an internet network server and the cameras are controlled through the DVR. In both cases the transmission is sent to the router to the internet. An IP camera and a DVR will transmit 24 hours a day without the need of a computer, only an active router. These devices must be configured on the Local Area Network and on the Wide Area Network to function properly.

A USB receiver or a USB Motion Grabber is required to transmit the signal of a wireless camera to the computer. Once received by the computer, the computer becomes the internet network server. The computer must be turned on in order to serve the signal to the internet. The transmissions are then viewable on a remote device such as a cell phone or another computer.

Power and Signal

A wired IP camera receives power through an Ethernet switch, a midspan power supply, or an electrical plug from an outlet to the camera. The CAT 5 cable is connected from the router to the camera. The signal travels through the CAT 5 ethernet cable.

A wireless IP camera receives power through a power supply plugged into an electrical outlet. The signal of a wireless IP camera is transmitted to the router without an ethernet cable. Keep in mind, an ethernet cable is required to set up the wireless IP camera. A wireless IP camera can also be set up as a wired camera.

A DVR system has an ethernet cable attached from the router to the DVR for the transmission of the video signal to the router. The DVR receives power when it is plugged into an electrical outlet. The cameras receive power through a RG-59/2 Siamese Coax cable. There is a separate wire for power and a wire for signal transmission. A DVR system with more than 4 cameras will have a power box for the power cable to be plugged into. 4 cameras or less are usually plugged into a power strip.

Wireless cameras are plugged into a power outlet or they can operate on batteries. Who, really wants to be constantly changing batteries? The receiver also requires power from an electrical outlet or from a computer. The internet network server is the computer and requires constant power either from a battery or electrical outlet. The signal is transmitted from the camera, to the receiver, to a DVR device, then to the computer.

IP Addresses

Each internet connection has an internal IP address, which is the Local Area Network and an External IP address,part of the WAN Wide Area Network. The easiest way to find the External IP address of any location is to go to

To find the LAN address with a Windows OS, type config.ip into the search box and it will take you to the internal address of your LAN or WLAN. With a Mac go to system preferences then select network under internet & Wireless. Then choose advanced this will open the AirPort window. To find the internal IP address select TCP/IP and the internal IP address will appear as the router address.

Static and Dynamic IP Addresses

There are two types of IP addresses a static and dynamic a static address is one that stays the same whereas a dynamic is a changing IP address. This is important to understand when remote viewing is a requirement, since the device you are using for remote viewing requires an IP address to locate your security device. Setup instructions and videos on setting up a wireless IP camera and a DVR at The Spy Geeks.

Static and Dynamic IP Addresses


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    • profile image


      3 years ago

      I can't figure out how to make the DVD install on my computer for the software and Driver

    • handyman22 profile imageAUTHOR


      4 years ago from Altamonte Springs, Florida

      As long as there is power Wired is better. Wireless is easier but subject to signal transmission problems.

    • securityny profile image

      Fire Stone 

      4 years ago from NY

      Hi Thanks for the information. Do you thing the wire is better than wireless in some point ?


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