Fiber distribution Hub basic knowledge

As more requiements of high speeds is coming, multiple service operators are looking for ways to increase their bandwidth for subscribers. To accomplish this task, engineers need cost-efficient and efficient innovations. As one solution, a fiber distribution hub can be deployed – allowing 5G and other technologies to bring that much needed access closer to the network edge. This in turn will free up valuable real estate traditionally used by telecommunications rooms – enabling them to put it towards more productive uses instead!

What is a fibre distribution hub?

A fiber distribution hub (FDH)  is an outdoor cabinet to mount fiber optic adapter, pigtail, splitters and is used to connect optical fibers in the outside network.

The Fiber Distribution Hub is the perfect solution for anyone looking to satisfy expansive fiber network requirements, while staying within stringent permitting ordinances. Our FDHs are equipped with high-density fiber connectivity and come in a weatherproof enclosure that ensures its strength despite any climate conditions. It is very versatile, so you can use different cassettes, plates, splitters, and trays. This makes it great for both regular splicing and plug-and-play solutions!

Structure of fiber distribution hub

The fiber distribution hub includes enclosure, splice and termination tray(NTM) with popular connectors (FC connector, SC connector, ST connector), Fiber Adapters, Fiber Cables, Fiber Hanging Pole, Cable Lead Ring, Cable Fixing plate, Pedestal, Rack mount Fiber Optic Patch Panel (for 19inch).

structure of fiber distribution hub

Types of FDH

Fiber outdoor cabinet, which come in various sizes and forms depending on the network location, can be found both indoors and outdoors. When looking for an outdoor fiber distribution hub, it’s important to think about the purpose and number of people it will serve. It’s best to work with an experienced expert to find the right model for you.

Benefits of fiber distribution hub

Installing and servicing fiber network connections is streamlined, fast, and simple with the use of factory-preconnectorized feeder and distribution cable stubs in cabinets. Not only does this make it easier to test in an outside plant setting but also ensures faster field installations that are reliable. Furthermore, depending on customer demand or location, Fiber Distribution Hubs come in various sizes and shapes.

Challenger of today’s fiber distribution hub

Prior to the emergence of superior fiber-to-the-home (FTTH) technology, producers were compelled to develop bulky metal cabinets.The people in charge of installing the units were usually willing to secure them on the ground in utility easements. Additionally, manufacturers routinely sought out concrete pads and utility poles as ideal sites upon which such machines could be mounted.

Nowadays, allowing regulations, destruction and security are top priority when it comes to cabinet placement consideration. Due to higher subscriber needs and limited space, cost and space efficiency are now required for Feeder Distribution Hubs (FDH).

Solutions provided by TELHUA

Years ago, Telhua saw the need for a below-grade FDH that could serve up to 72 subscribers and designed the first model. Now with advanced technology, this same footprint can accommodate 288 users! And if above-ground cabinets are allowed, we offer options from 72 all the way up to 864 ports.

Installation of fiber distribution hub

Precast Cement Base

Position the cabinet onto the cement base by aligning the corresponding installation holes, and fix and lock them with expansion bolts.

Precast Cement Base

Optical Cable Insert

Insert the ribbon (bundled) cables into the cabinet through the inlet cable hole on the bottom, and then strip optical cables by using a dedicated stripper. Cover the optical cables with a heat-shrinkable protection tube for heat shrinking, and then use a clamper to fix the optical cables to the hook.

Fix the separated strength member to the strength member fixing panel.

Cover the fiber with a bare fiber protective tube

Insert it into the cable lead ring, and then fix it onto the binding bar at the side face with cable ties.

Lead the fiber into the integrated splicing and termination module (or the direct splice tray) for splicing.

Fiber Splice

Remove the NTM integrated splicing and termination module, and remove the cover.

Turn over the splice tray by 90°

Insert the pigtails into the adapter according to the color spectrum (blue, orange, green, brown, grey, white, red, black, yellow, purple, pink and light blue).

Lead the pigtails through the square aperture and enter the splice tray at the upper layer as shown in the figure.

Turn the splice tray by 90° and cover it.

NTM TRAY ROUTING

Lead the bare fibers in Section 5.1.2 into the NTM integrated module, splice it with the pigtails, put on the cover.

Insert the NTM integrated module back to the corresponding position in the cabinet.

Take out the RJ-F direct splice tray, remove the cover, and lead the two ribbon fibers for direct connection into the RJ-F direct splice tray. Splice the fibers after coiling them properly as shown in the right figure.

Then, Put on the cover and install the tray back to the corresponding slot in the cabinet.

BARE FIBERS INSIDE THE SPLICE TRAY

Splice of Direct-Connect Fibers

Take out the RJ-F direct splice tray, remove the cover, and lead the two ribbon fibers for direct connection into the RJ-F direct splice tray. Splice the fibers after coiling them properly as shown in the right figure.

Then, Put on the cover and install the tray back to the corresponding slot in the cabinet.

DIRECT SPLICE TRAY

Management and Connection of Patch Cords

Management and Connection of Patch Cords
Management and Connection of Patch Cords

Optical Splitter Installation

Install it on the fiber hanging plate

An optical splitter fixing plate shall be configured if an optical splitter is selected, as shown below

INSTALL FIBER SPLITTER