Fiber Optic Termination Box for FTTH Applications


The ftth termination box provides a cost-effective solution for FTTH applications. Some manufacturers offer enclosures with fiber splitters, adapters, and splice cassette already installed. This can help reduce installation time and cost.

The enclosures can also be customized to meet different customer requirements. Today this post is mainly focused on the basics of the splitter termination box.


What’s a fiber optic termination box?

Fibre connection box is a fiber optic product that is shaped like a box. It is used to protect and distribute optical fiber links in the fiber optic network. Generally, the fiber optic box includes the fiber patch panel and the fiber optic terminal box.

The adapter panel is larger and installed on optical distribution frame, the fiber optic termination box is smaller. There are a lot of fiber optic boxes and optic management products. It is hard to count them because different manufacturers make them differently and give them different names and model numbers.

How does a ftth termination box work?

The fiber junction box includes a splitter, adapters, or splice trays. When the optical signal enters the enclosure, it is split into multiple output fibers by the splitter. The adapter mounts on the front of a panel for connecting to individual optic cable. Outdoor cables end faces are terminated in a fusion splices tray within the enclosure.

Some terminals have splice trays that can be removed easily for maintenance without disconnecting patch cables. The optical cable connection box is usually installed in a room near where the outdoor fiber comes into the house. This is so you can easily get to the fiber patch cord and optic patch panel. You can open the box by removing a cover or lifting it off the top.

How do I install optic termination boxes?

The telecommunication closets are installed in the data centers, which provides an ideal location for space and air conditioner. Having a three-dimensional view will help you figure out where to place wall mount fiber termination boxes, floor-mounted cabinets, or pedestal enclosures. This way, you can make the most use of the space and avoid any obstacles.  When installing a fiber terminal box, you must consider the following points:

1. Is there enough working space around the enclosure?

2. Are they installed in areas where lightning strikes may occur?

3. Do the optical cables need to be extended from one location to another? If so, can this conduit or raceway run be extended to the fiber enclosure?

4. How many fibers do you need for each optic connector?

5. Is temperature control an issue? If so, where should a ventilation fan or air conditioner be located?

6. Are there any safety considerations to address? Will the cabinet be located near chemical storage areas or other hazardous locations?

7. Is power available at the location of choice and is there a receptacle nearby for feeding it? 

The fiber optic junction box must be installed as close to the work area as possible to avoid unnecessary cable length. If a longer run is needed, you can use optical splitters and fiber along with a shorter cable for the network connection.

You should install the optical fiber distribution box according to the instructions from the manufacturer. You should consider factors such as lighting, temperature control, safety requirements, and termination connection. You can also hire a professional installer to help with the installation or maintenance of fiber optic terminal boxes.

The optical termination enclosure is a very important part of the FTTH networks. This device is responsible for transmitting and distributing optical signals. To ensure the terminal box works well, it should be installed correctly and maintained regularly. This will help avoid damage or signal loss.

What are the advantages of optical termination box?

A fiber terminal distribution box is a good way to connect different optical fibers. This is helpful for FTTH applications. It helps keep different optical fibers in one place and provides easy access.

In addition, this type of enclosure has high-quality performance and provides adequate protection for optical fibers. It also helps minimize installation time and cost, while ensuring good performance in the provision of high-quality services.

There are other fiber management devices that you may want to learn about, such as fiber optic splitters. TELHUA offers a wide range of fiber splitters and other devices, providing high-quality products at competitive prices. We are a leading manufacturer and supplier of fiber optic products.

What types of fiber optical distribution box?

Fiber optic box panels can be pre-installed with different types of fiber optic adapters. These duplex adapters are what allow the fiber box to connect to external devices. The smallest size fiber optic box is also used for fiber optic distribution and organization.

Our typical fiber terminal box has 12 ports or 24 ports, with a size of 270mm * 137mm * 45mm. The ftth termination box is made of metal and has a soft surface. This type of fiber optic box is usually installed with FC or ST adapters in the panel. This fiber terminal box could be installed on the wall or horizontal line.Outdoor 24 port Terminal Box for LGX Splitter PLC Fiber CTO Box Wall Mount Optical Joint Box

Outdoor 24 port Terminal Box for LGX Splitter PLC Fiber CTO Box Wall Mount Optical Joint Box

Wall-mount type fiber termination boxes are designed for pre-terminated cables, field installation of connectors, or field splicing of distribution cables. They offer a good solution for building entrances, optic communications cabinets, main cross-connections, network equipment rooms, and other controlled environments.

Rack mount type fiber distribution box is installed on housing of the rack and is used for optical fiber splicing, distribution, and fiber connections. In addition, it could be installed in computer rooms or cable television (CATV) headend. Rack mount slide-out type fiber termination box is with a box with slider.

How to connect the fiber cable with fiber Terminal Boxes?

  1. The optical terminal box has a fixing function. After the outside plant cables are serially connected to the ftth termination box, the optical cable terminal box can mechanically fix the optical cable. This prevents it from moving and also protects it from damage. Additionally, the box can add ground wire protection components, perform end protection processing, and group and protect the optical fibers.
  2. Once the horizontal cable is fixed, the optical fibers inside it are drawn out through the terminal box. The fibers are then spliced with fiber pigtail, and the redundant fibers are coiled and stored. The optic splices are protected in the meantime.
  3. First, plug the connector attached to the pigtail cable into the optical cable terminal box. Then, use the other connector on the fiber adapters to connect to the optical connector on the other side. This will create an optical path between them.
  4. There are many ways to use bulk cable at the user end. For example, if there is an 8-core indoor cable, it can be split into 8 different pigtails. This will allow for different devices to be connected to the passive optical networks.
  5. To set up your home network, you will need to connect the computer to the router. Connect the optical cable terminal box to the WAN port of the router, and then connect it to the switch. Finally, connect the computer network cable to the switch.
  6. First, set up the computer with the connector. Next, set the gateway of the router in a computer TCPIP. Log in to the router and add static IP, subnet mask, DNS, etc. to the username and password. Save and restart the router.
  7. Finally, connect the optical cable terminal box and computer to the network. 


Fiber termination box today plays an indispensable role in the communication network field with higher reliability and flexibility. The expansion of broadband networks is making it possible for people to have high-speed internet in their homes. This is making network organizers adopt powerful planning and cable management systems.

The fiber optic splitter termination box is a small part of this system. Telhua can provide comprehensive solutions, any questions, do not hesitate to contact me at