CCTV Cable Selection Guide

Cable Selection Guide
(1) BNC Coaxial Vs. RCA Vs .Cat5 When selecting cables for CCTV connection, either RCA, BNC coaxial cable or Category 5 twisted pair cable can be used. BNC cables generally have lower losses than RCA, are more rugged, and are most commonly constructed using coaxial cable. For cable lengths under 20 to 25 feet, most RCA cables provide acceptable results for both audio and video but you will rarely if ever see professionals use RCA. At lengths of as little as 30 feet, RCA cable can start to show a measurable loss at the higher frequencies, depending on the quality of the cable. The Category 5 cable also known as Cat5 carries four pairs of wires allowing for more runs on a single cable and being much lighter is easier to work with. While distances beyond 500' becomes a video signal problem for BNC, Cat5 can comfortably extend out to 1,000. BNC Connector RCA Connector RJ45 Connector RJ11 Connector (2)Coaxial Cable A type of wire that consists of a center wire surrounded by insulation and then a grounded shield of braided wire. The shield minimizes electrical and radio frequency interference. Coaxial cabling is the primary type of cabling used by the cable television industry and is also widely used for computer networks and CCTV. Although more expensive than standard telephone wire, it is much less susceptible to interference and can carry much more data. (3)Cat-5 Cable A network cabling that consists of four twisted pairs of copper wire terminated by RJ45 connectors. Cat-5 cabling supports frequencies up to 100 MHz and speeds up to 1000 Mbps. It can be used for 1000Base-T, 100Base-T, and 10Base-T networking. Computers hooked up to LAN s are connected using Cat-5 cables, so if you're on a LAN, most likely the cable running out of the back of your PC is Category 5. (4)RJ45 Connector Short for Registered Jack-45, an eight-wire connector used commonly to connect computers onto a local-area networks (LAN), especially Ethernets. RJ-45 connectors look similar to a telephone line connector ( RJ-11 connector), but they are somewhat wider. (5)RJ-11 Connector Short for Registered Jack-11, a four- or six-wire connector used primarily to connect telephone equipment in the United States. RJ-11 connectors are also used to connect dial-up modems to the internet using your telephone line. Subscribe to CCTVMalaysia2u Blog by Email

1/3 Sony CCD CAMERA 35 PCS LED-SALES

GUARDTECH professional Infrared LED camera can capture images in extremely low or no lighting using its built-in LED lamps. In addition, it boasts excellent performance in monitoring factory compounds, stores and warehouses using a Twin glass Technology. With Sony's Proprietary Technology, the GT-124 able boasts stable and precise image processing, and even capture tiny movements in complete darkness conditions.


1/3” SUPER COLOUR CDD IR CAMERA
- Resolution =420TVL
- Minimum Illumination=0.5Lux/F1.0
- Lens = 4 mm standard (optional 6 and 8mm)
- Power Source = 12 VDC
- 35 PCS LED
- Product of JAPAN Technology
*Weight: 500GRAM


USD 35

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How to chose a good CCTV Security Camera Surveillance System

In the past few years the need for CCTV security surveillance systems has increased, wither its for your home or your business CCTV technologies have proven to increase security. and Just like any other technology now a days, CCTV systems are way more affordable that they used to be, but first what makes a good CCTV security camera system

Instructions

Step 1
The number of Frames Per second your DVR (Digital Video Recorder) is capable of handling. First understanding what that means, A real time second of video is 30 Frames. so a recorded second or video motion that doesn't skip is 30 Frames. So if your CCTV camera system is capable of handling 30fps that means you can record only one camera real time otherwise the 30fps will be divided into how many cameras they system might support. So when looking for a good CCTV Surveillance system make sure you get a system that does 30fps for each camera. so if you are looking for a 4 a good CCTV security camera system look for a 120fps DVR capable.

Step 2
TV Lines supported by the CCTV cameras. A CCTV camera's quality is measured by TV Lines, which is the number of horizontal TV lines the camera produces, and of course the higher the clearer and better picture. the average quality is 400TVL, 420TVL is good picture quality, 480TVL is higher quality and more is even Better. keep in mind that TV Lines is what mainly controls the price of the CCTV camera.

Step3
The Resolution of which the DVR does display and record. which is the original dimensions in pixels of the displayed or recorded video Such as 160x120, 320x240 and 640x480 and the higher is the better.

Step 4
The HDD capacity of the CCTV DVR. which basically means the number of recorded previous days of video that the DVR will keep before recycling. most CCTV systems by default record video based on motion which means if there is no motion there is no recording because practically it will be a still image rather than video. the average for a 4 camera system is between 160GB and 250GB and the higher the more days of recorded video (motion) your DVR system keep.

Step 5
Remote capability. Now a days a standard CCTV camera systems are remote view capable. which means you can view your cameras remotely and virtually from anywhere in the world using the internet using internet explorer or using a remote client that is installed on the PC your accessing the DVR from.

Step 6
Back up and recovery compatibility. CCTV camera systems give you the ability to back up desired video period either on CD-R, DVD-R or USB storage including USB flash drives. Making it easy to export video to other devices for many various reasons. for example making a copy for the police or the insurance company

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