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Add: No.101 B.S. Industrial Zone, Wangniudun Town, Dongguan City, Guangdong, China
Tel: +86-769-81209595
Mob: +8613242086178 (WeChat or Whatsapp)
E-mail: milton@hgcable.cc
Helen Golden: helen@hgcable.cc

Optical Fiber Cable 72

The innerduct will provide the cable with an extra layer of protection during future work activities and from rodents. Form the innerduct and enclosed cable to the sides of the manhole, being careful to maintain the cable's minimum bend radius.
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1-288 cores  GYTA Armoured Optical Fiber Cable

Central strength member

1.8mm Steel

Outer diameter

Vary from 7 to 14mm

Application

Aerial ,duct, pipeline, underground

Cores available

2,4,6,8,12,24,36,48,72,96,144,288

Cores type

G652D,G657A,G655C

Attenuation @1310nm

 ≤0.36dB/km

Attenuation @1550nm

 ≤0.22dB/km

OEM/ODM

Yes

Package

1/2/3/4/5km km each exporting wooden drums

Cover

PE,HDPE

GYTA fiber cable2

Learn more about fiber optic cable:

The innerduct will provide the cable with an extra layer of protection during future work activities and from rodents. Form the innerduct and enclosed cable to the sides of the manhole, being careful to maintain the cable's minimum bend radius. Once the cable and innerduct is formed along the manhole walls in a safe location, secure them to the manhole racks using plastic cable ties. If the innerduct is insufficient in length to be formed to a safe pathway along the sides of the manhole, it can be ring cut to allow the racking to be completed. Pulling slack innerduct from adjacent manholes is not recommended. Cut the innerduct just beyond the first manhole rack on both sides of the manhole. The racked, cut innerduct can be cable tied to the first manhole rack to keep it secured. The opening in the innerduct should be covered with a split duct. Expressing micro-duct cable buffer tubes through a splice closure is not permitted. The buffer tubes should be opened in the splice closure and the express fibers stored in the closure's splice trays or routed in furcation tubing through the closure. If the buffer tubes are expressed through the splice closure, an increase in attenuation may occur at colder temperatures.

The indoor environment is less hostile and not subject to the extremes seen outdoors. Indoor cables have usually been a tight buffered fiber cable design with either a riser or plenum rating. These cables must conform to National Electric Code (NEC) requirements for riser or plenum applications.

Tight buffer fiber optic cable designs are typically smaller in size and more flexible. The 900-micron tight buffer fiber is easier to connectorize, and the cable is generally easier to prepare for termination. A tight buffered fiber cable does not typically provide protection from water migration and does not isolate fibers well from the expansion and contraction of other materials due to temperature extremes. Tight buffered fiber cable, often called premise or distribution cables, are ideally suited for indoor cable runs.

Tight buffer fiber optic cable is optimal for indoor applications. It is more robust than loose tube fiber cable and is ideally suited for LAN and WAN installations, long indoor runs, direct burial and underwater use. Instead of using gel for water blocking in loose tube cable, tight buffered fiber cable has two layers of coating. The first is plastic, and the second is waterproof acrylate. The latter provides a moisture barrier.

Free-space optical communication (FSO) is an optical communication technology that uses light propagating in free space to wirelessly transmit data for telecommunications or computer networking. "Free space" means air, outer space, vacuum, or something similar. This contrasts with using solids such as optical fiber cable.

The technology is useful where the physical connections are impractical due to high costs or other considerations.

A photophone receiver and headset, one half of Bell and Tainter's optical telecommunication system of 1880

Optical communications, in various forms, have been used for thousands of years. The Ancient Greeks used a coded alphabetic system of signalling with torches developed by Cleoxenus, Democleitus and Polybius.[1] In the modern era, semaphores and wireless solar telegraphs called heliographs were developed, using coded signals to communicate with their recipients.

In 1880, Alexander Graham Bell and his assistant Charles Sumner Tainter created the photophone, at Bell's newly established Volta Laboratory in Washington, DC. Bell considered it his most important invention. The device allowed for the transmission of sound on a beam of light. On June 3, 1880, Bell conducted the world's first wireless telephone transmission between two buildings, some 213 meters (700 feet) apart.[2][3]

Its first practical use came in military communication systems many decades later, first for optical telegraphy. German colonial troops used heliograph telegraphy transmitters during the Herero and Namaqua genocide starting in 1904, in German South-West Africa (today's Namibia) as did British, French, US or Ottoman signals.

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  • Contact Us

    Add: No.101 B.S. Industrial Zone, Wangniudun Town, Dongguan City, Guangdong, China
    Tel: +86-769-81209595
    Mob: +8613242086178 (WeChat or Whatsapp)
    E-mail: milton@hgcable.cc
    Helen Golden: helen@hgcable.cc

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