Month: April 2013

In Closed circuit television (CCTV) installation, testing is very important to complete the project on agreed deadline and not to overspend or duplicate the work. And the CCTV tester is the useful tool for CCTV system, which is experiencing a leap in technology using digital techniques and the Internet. A CCTV tester is a device with a small screen and facilities to test coaxial cable, RJ45, cameras, PTZ, microphones and monitors. It is a handy tool in testing signal strengths and any signal short circuit. CCTV tester now had been developed and designed to be small, lightweight potable and comes with LCD monitor, so using a tool like this makes set up and debugging your CCTV system easier.

No matter you are DIY Your home security system or working as a CCTV technician, CCTV tester is the tool to give you the ability to set field of view, adjust focus, pan, tilt, zoom, and troubleshoot power, video, and audio connections etc. From the CCTV tester you can know the current situation, including the details of CCD cameras, lenses, coaxial cables, fiber-optics, and system design. What’s more, CCTV tester is expanded to cover all video compression techniques used in the ever increasing assortment of digital video recorders (DVRs) available in the market. It also serves to clarify the technology of data networking.

There are various types of CCTV testers, and I would like to introduce the CCTV Security Tester STest-893 as an example.

CCTV Security Tester STest-893 with PTZ Controller and Power Supply Features:

3.5″TFT-LCD, 960 (H) × 240(V) resolution;
DC12V power output;
Audio input;
Adjustable brightness, contrast, color of LCD;
Video Level testing, video signals measured in IRE or mV;
Automatically identify and adapt the video mode of NTSC and PAL;
Colorbar Video signal generator, transmit/receive colorful images;
Support more than twenty kinds of PTZ controller protocols. For example, PELCO-P, PELCO-D, SAMSUNG, etc;
PPTZ address scanning, search up the ID of PTZ camera;
Capture the PTZ protocol to assist the setting personnel to find out the control protocol and therefore easily target the problematic equipment;
Support RS232 and RS485 interface, the rate 150-19200bps;
Powerful in testing LAN cable, measuring the connecting status and displaying the sequence of connection;
PTZ(P/L & Zoom) Control: Control the status of P/L, zoom in/out the camera, adjust the aperture, foci and setting parameters, run and call the preset;
Lithium Ion Polymer Batteries (3.7V DC3000mAh), more reliable, and work 15 hours;
Easy for use that the train is almost unnecessary.

CCTV tester can be used for displaying video, controlling PTZ, generating images, capturing data of RS485 and testing LAN cable etc. Its functions, easy operation, and convenient portability enable it simple for the contractor to install and maintain the video camera, promote working efficiency and cost-down the expenditure of the project. Fiberstore is a professional fiber optic testers supplier, you also can find other maintenance equipments like adsl test, cable fault locator, etc.

Most cables are wrapped in what amounts to a protective tube around the wire to improve safety and extend the operating life of the cable. Cable stripper, also called wire stripper, is a tool used to strip the outside coating of a cable to expose the active wire underneath for installation. Usually, this tool is used when two wires need to be connected or when a connector needs to be applied to the end of a coated wire.

Cable stripping tools are usually hand-held metal tools that look similar to pliers, except they feature a cutting end and stripping hole instead of a grip. Most cable strippers come with cable cutters already built into the tool. Other cable strippers may have specifically-sized holes that are designed to perfectly strip wires of varying sizes. Using a specially-sized cable stripper can make a proper cable stripping job easier to carry out. Professionals such as electricians or cable installation specialists often use size-specific cable strippers that are designed to strip a precise type of cable commonly used in their industries.

How To Use A Cable Stripper
Stripping a cable with a cable stripper is typically easy to do, and mistakes in stripping can be corrected easily. Older, brittle, or weathered wires inside a cable can make a successful stripping job more difficult than usual. Unless the amount of available cable is limited, a botched cable strip job can be remedied simply by clipping the badly stripped edge off with a wire cutter and re-stripping the cable.

What Types Of Wire Strippers
Cable strippers come in a variety of designs to support the diversity of their usefulness. Handheld designs are most convenient and inexpensive, but benchtop varieties are manufactured to assist in high-volume stripping applications. Articulation of the stripper ranges between manual, electrical, and pneumatic power sources.

A simple manual wire stripper is a pair of opposing blades much like scissors or wire cutters. The addition of a center notch makes it easier to cut the insulation without cutting the wire. This type of wire stripper is used by rotating it around the insulation while applying pressure in order to make a cut around the insulation. Since the insulation is not bonded to the wire, it then pulls easily off the end. This is the most versatile type of wire stripper.

Another type of manual wire stripper is very similar to the simple design previously mentioned, except this type has several notches of varying size. This allows the user to match the notch size to the wire size, thereby eliminating the need for twisting. Once the device is clamped on, the remainder of the wire can simply be pulled out, leaving the insulation behind.

How To Choose A Wire Stripper
The quality of a stripped wire is largely determined by the quality of the tooling selected. Properly-sized tools are the easiest way to provide a high-quality exposed conductor, and many wires are required to be labelled with gauge information. Another determination of wire quality includes the strip length. Devices like switches and receptacles will have a strip gauge, and automated machines will have a clear adjustment mechanism to ensure accurate wire and strip lengths.

Fiberstore provides a range of fiber tools, our complete line of fiber optic strippers feature more than 40 products. To check which of our wire strippers will suite your particular wire sizes, scroll down to view all our wire strippers or contact our sales. And if you can’t find it here, we can custom build one for you!

Fiber splicing involves joining two fiber optic cables together to establish an optical connection between two individual optical fibers. Fiber optic splicing typically results in lower light loss and back reflection than termination.

Splicing is needed if the cable runs too long for one straight pull or you need to mix a number of different types of cables (like bringing a 48 fiber cable in and splicing it to six 8 fiber cables). And of course, we use splices to repair damaged optical fibers during installation, accident, or stress. After the number one problem of outside plant cables, a dig-up and cut of a buried cable, usually referred to as “backhoe fade” for obvious reasons. System design may require that fiber connections have specific optical properties (low loss) that are met only by fiber-splicing. System designers generally require fiber splicing whenever repeated connection or disconnection is unnecessary or unwanted.

Fusion Splicing & Mechanical Splicing
Splices are “permanent” connections between two fibers. There are two common methods used to join optical fiber cables –Fusion Splicing & Mechanical Splicing, and the choice is usually based on cost or location. Most splicing is on long haul outside plant SM cables, not multimode LANs, so if you do outside plant SM jobs, you will want to learn how to fusion splice. If you do mostly MM LANs, you may never see a splice.

Fusion splicing is the act of joining two optical fibers end-to-end using heat. The goal is to fuse the two fibers together in such a way that light passing through the fibers is not scattered or reflected back by the splice, and so that the splice and the region surrounding it are almost as strong as the virgin fiber itself.

The principle of fusion splicing is that the two bare fiber ends (with coatings removed) are fused together under the influence of heat. More precisely, the fiber ends are initially brought in close contact, with a small gap in between. After heating them for a short while such that the surfaces melt, they are pushed together, such that the ends fuse together. In fusion splicing, splice loss is a direct function of the angles and quality of the two fiber-end faces. When doing fusion fiber optic splicing, usually people need Heat Shrink Tube splice protect sleeves to protect the fiber splices after the work is done.

Mechanical Splicing is a fiber splice where mechanical fixtures and materials perform fiber alignment and connection. Mechanical splicing is an optical junction where the fibers are precisely aligned and held in place by a self-contained assembly, not a permanent bond. This method aligns the two fiber ends to a common centerline, aligning their cores so the light can pass from one fiber to another. Mechanical fiber optic splicing is used for a quick repair and when only a small number of splices are required, its average cost for a single fiber optic splicing is high.

As for the performance of each splicing method, the decision is often based on what industry you are working in. Fusion splicing produces lower loss and less back reflection than mechanical splicing. Fusion splices are used primarily with single mode fiber where as Mechanical splices work with both single and multi mode fiber. The equipment to perform fusion splicing, named fusion splicer, is commercially available with a wide range of models.

FiberStore has launched series easy-to-use visual fault locators for perfect optical network fault locations. 650nm Visual Fault Locator among that, is editor here happy to introduce. 650nm Visual Fault Locator is one of the most common used types of fault locators with the 650nm visible laser source and output power of 10mW for testing single mode or multimode fiber by emitting a bright beam of laser light into a fiber to allow users to see a break as a glowing or blinking red light. This visual fault locator is intended for examining all kinds of patch cords, ribbons or bunched pigtails in the installation and maintenance of fiber optic networks, which is also regarded as the perfect fiber optic testing tools for engineers working on fiber optic networks, telecommunications and CATV maintenance.

The handheld 650nm optical visual fault locator, model BML 201 is perfect for optimizing mechanical fusion splicing and end-to-end fiber identification. It offers a maximum measurement distance of up to 10km and boasts a rechargeable battery supporting 12 hours continuous work. The energy saving design of it makes it will automatically shut down if there is no operation for about 10 minutes. The universal fiber adapter of this visual fault locator can be connected with all 2.5mm adapters such as FC, SC or ST.

FiberStore.com, a good place for purchasing or wholesale quality visual fault locator and cable fault locator, has all of our products detailed information displayed online. Welcome to visit and register.

A Small Make up Knowlege for Visual Fault Locator
Visual fault locator a very cost-effective and power-saving fiber test tools to locate imperfections, fiber cuttings, micro or macro bends in fiber optic cable links. It can come in a pen shape, handheld portable types. A visual fault locator consists of laser light source, pulse modulation circuit board, light coupling lens and fiber optic connector adapter.

In the working process of the visual fault locator, it injects a highly visual red color laser light into the fiber optic cable though a built-in connector adapter. The red laser light can be switched between continuous mode and pulse mode with a 1~2 Hz frequency and 60ms duration. There are two types of connector adapters: 2.5mm and 1.25mm in diameter. 2.5mm version is for FC, SC and ST connectors, while 1.25mm version is for LC and MU connectors. Light source of the visual fault locator is usually a high power class 2 laser diode at a wavelength of 635nm, 650nm or 670nm.

Visual fault locators can work with both single mode and multimode fibers. Fiber distance, the longest fiber length where you can see the leakage light freely for multimode fiber is 10km, and 5km for single mode fiber.

Fiber optic visual fault locator is regularly used for testing and locating breaks in LANs, FDDI, ATM, fiber data links and loops, telephones, ships and other vessels. It can be used as an independent fiber-link basic troubleshooting instruments or in conjunction with an OTDR to pinpoint faults. Typical industrial applications are fiber optic networks, telecoms network and CATV network maintenance.

Crimping tool is designed to crimp or connect a connector to the end of a cable. Crimping device tools and cable stripping devices help properly crimp and strip different types of wires, such as solid wire, standard wire, Teflon, PVC, neoprene, rubber, nylon, etc. Apart from being one of the computer networking tools, these network cable crimping tools have various applications in different industries such as electronics, data, voice, video and signal industries.

Network crimping tools are used to create telephone cables and network patch cables. Network crimping tools allow a user to trim the network or telephone cabling to size by means of an attached cable cutter. You can also strip the insulation from the individual conductor wires within the cabling with the integrated wire stripper. Interface ends, such as RJ-12 and RJ-45 connectors, may be attached to the cable by means of the network tool’s crimper head. A network crimping tool is actually three tools in one package: a wire cutter, an insulation stripper, and a crimper.

While preparing networking cables for creating computer networks such as LANs (Local Area Networks) one has to be very careful and precise. One has to use a variety of wire connector assembly and installation tools to assemble and install such connectors to each other. These tools include a variety of cable tie guns, crimpers, cutters, pliers, punch down tools, screwdrivers, splicers, strippers, and cable pulling grips.

Now you know the network crimping tools are helpful in telephone networks and computer networks. But do you know how to use a network crimping tool? Here is the insturction:
1. Insert the free end of the Category 5 cabling between the network crimping tool wire cutter blades, and pull approximately one foot of cabling through gap between the wire cutter blades, and cut the cabling.

2. Insert approximately 1/2 inch of one end of the cut length of cable into the wire stripper socket, and squeeze the network crimping tool handles together. Remove the stripped end from the wire stripper socket, and insert the unstripped end 1/2 inch into the wire stripper socket. Squeeze the network crimping tool handles together, and remove the stripped wire from the wire stripper socket.

3. Untwist the wire pairs at each end of the length of cable, and straighten each wire. Clip the wires so that each wire is the same length. Arrange the wires from left to right in this order: white/orange, orange, white/green, blue, white/blue, green, white/brown, brown.

4. Slip the wires into the RJ-45 connector with the prong facing downward (away from you). Push the wires all the way to the end of the plug. Slip the tool crimper socket over the RJ-45 connector, and squeeze hard to crimp the plug.

Fiberstore offers a wide range of cable crimping tools, which are necessary tools for network professionals. The wire used to make network cables is not expensive when purchased in Fiberstore.com. The connectors also are reasonably priced. Once you have the crimp tool, the cost of making your own cable is a bargain compared to buying ready-made Network Cable.