Dongguan Qingying Industrial Co., Ltd.

Established in 2012, Dongguan Qingying Industrial Co., Ltd (QualitY） is a company dedicates to researching and developing, manufacture and sales.It is located in Dongguan City, China, and with workshop area more than 5000 square meters. Our main products are fiber adapter, fiber fast connector, fiber patch cord, fiber splitter, fiber attenuator, SFP and FTTH products.

QY (QualitY）is ISO9001:2015 certified, and makets more than 20 countries at millions of homes, with abroad partners trusted by excellent products quality and service.

Qingying now has made solid progress. We continue to keep pace with the growing demand and to strive for excellence.

  2005： Our Factory establishment.

· 2006： First 100K USD order From USA clients.

· 2007： Add one more production line to Increase capacity.

· 2008:   we success had weathered the global financial storms.

· 2009： Annual sales over Ten million RMB.

· 2010:  Successfully developed the South American market.

· 2011:  Add 3 more production line to meet the capacity.

· 2012:  Our staff over 100 people.

· 2015: Ceramic sleeve production line to increase capacity.

· 2016: New office and Exhibition were  decorated .

· 2017:  We are still on the way do the best communication products ,make your life more better.

         This photo from the infancy of fiber optics (to the right) was used to illustrate that one tiny optical fiber could carry more communications signals than a giant copper cable. Today one single mode fiber could carry the same amount of communications as 1000 of those old copper cables!

Fiber offers thousands of times more bandwidth than copper cables and can go more than 1000 times further before needing repeaters - both of which contribute to the immense economic advantage of fiber optics over copper. You can do a similar analysis for using wireless transmission also, but wireless is limited by the available wireless spectrum which is overcrowded because of everyone's desire to use more mobile devices.

Why Convert From Copper Cable To Fiber Optic Cable?

If you need some convincing before you make your first fiber optic cable purchase keep the following facts in mind.

Optical Fiber - Much More Efficient & Secure

Fiber optic cable operates much more efficiently and is more secure than traditional copper cabling. Fiber can transmit far more information over greater distance and with a higher clarity while offering a more secure connection. Fiber optic cable is resistant to electromagnetic interference and generates no radiation of its own. This point is important in locations where high levels of security must be maintained. Copper wire radiates energy that can be monitored. In contrast, taps in fiber optic cable are easily detected. Copper cable, is also subject to problems with attenuation, capacitance, and crosstalk.

Optical Fiber - Does Not Require Grounding

Since fiber is made of glass, which is a bad electrical conductor, it does not require grounding and shields itself from other electrical interference. Fiber cables can be run near electrical cables without fear that it will weaken or interrupt the signal.

Optical Fiber - Corrosion Resistant

Fiber optic cable does not corrode and is not as sensitive to water or chemicals. This means you can safely run fiber cable in direct contact with dirt or in close proximity to chemicals (with the proper outer jacket materials).

Optical Fiber - The Safer Choice

Since fiber is not a good conductor of electricity, an installer or user will be safe from electrocution if there is a break in the outer jacket and the fiber is exposed.

                      Indoor Vs. Outdoor Optic Fiber Cable Applications

          For indoor applications , the jacketed fiber is generally enclosed, with a bundle of flexible fibrous polymer strength members like aramid (e.g. Twaron or Kevlar), in a lightweight plastic cover to form a simple cable. Each end of the cable may be terminated with a specialized optical fiber connector to allow it to be easily connected and disconnected from transmitting and receiving equipment.

For outdoor applications or use in more strenuous environments, a much more robust cable construction is required. In loose-tube construction the fiber is laid helically into semi-rigid tubes, allowing the cable to stretch without stretching the fiber itself. This protects the fiber from tension during laying and due to temperature changes. Loose-tube fiber may be "dry block" or gel-filled. Dry block offers less protection to the fibers than gel-filled, but costs considerably less. Instead of a loose tube, the fiber may be embedded in a heavy polymer jacket, commonly called "tight buffer" construction. Tight buffer cables are offered for a variety of applications, but the two most common are " Breakout" and "Distribution" .

Brakout cable normally contain a ripcord, two non-conductive dielectric strengthening members (normally a glass rod epoxy), an aramid yarn, and 3 mm buffer tubing with an additional layer of Kevlar surrounding each fiber. The ripcord is a parallel cord of strong yarn that is situated under the jacket(s) of the cable for jacket removal. Distribution cables have an overall Kevlar wrapping, a ripcord, and a 900 micrometer buffer coating surrounding each fiber. These fiber units are commonly bundled with additional steel strength members, again with a helical twist to allow for stretching.

A critical concern in outdoor cabling is to protect the fiber from contamination by water. This is accomplished by use of solid barriers such as copper tubes, and water-repellent jelly or water-absorbing powder surrounding the fiber.

Finally, the cable may be armored to protect it from environmental hazards, such as construction work or gnawing animals. Undersea cables are more heavily armored in their near-shore portions to protect them from boat anchors, fishing gear, and even sharks, which may be attracted to the electrical power that is carried to power amplifiers or repeaters in the cable.

Modern cables come in a wide variety of sheathings and armor, designed for applications such as direct burial in trenches, dual use as power lines, installation in conduit, lashing to aerial telephone poles, submarine installation, and insertion in paved streets.