FTTH 4 Core Fiber Optic Distribution Box ODF

A mini Fiber Distribution/Termination Box (FDB/ODF) used at the final drop point of an FTTH network—ideal for connecting a few nearby homes or a single small building.

Key Functions

• Fiber termination – connects the incoming fiber cable
• Splicing – protects and organizes fiber joints
• Distribution – delivers signal to up to 4 users
• Protection – shields fiber from environmental damage

Main Features

• Supports up to 4 fiber cores (4 ports/users)
• Compatible with SC or LC adapters
• Can house a small PLC splitter (1:2 or 1:4)
• Includes:
  • Mini splice tray
  • Adapter slots
  • Basic cable management
• Ultra-compact design

Typical Specifications

• Capacity: 4 ports (cores)
• Material: ABS/PC plastic (outdoor) or metal (indoor)
• Protection: IP55 – IP65 (weather-resistant)
• Mounting: Wall-mounted or pole-mounted
• Cable ports:
  • 1 input (feeder fiber)
  • Up to 4 outputs (drop fibers)

Where it’s used

• Single homes with multiple units
• Very small compounds (2–4 houses)
• Shops or kiosks
• Rural or remote installations
• Backup or temporary connections

How it works (simple flow)

1. Feeder fiber enters the box
2. Fiber is spliced inside
3. Signal may go through a 1:2 or 1:4 splitter
4. Outputs connect to up to 4 users

Advantages

• Cheapest FTTH distribution option
• Very small and discreet
• Quick and simple installation
• Perfect for micro-deployments

Difference from other sizes

• 4-core → ultra-small setups (≤4 users)
• 8-core → small clusters
• 12–16 core → medium clusters
• 24–32 core → large distribution points

When to use it

Choose a 4-core ODF if:

• You’re connecting just a few users (≤4)
• You want minimal upfront cost
• You’re doing pilot testing or phased rollout

Practical ISP Tip

In real deployments:

• 4-core boxes are rarely used for large networks
• Best for edge cases or isolated customers
• For scalability, many ISPs prefer starting at 8-core or 16-core