What is the ONT device?

What is the ONT device?

The ONT is a network interface device used with fiber-optic systems. The ONT device is the demarcation point between the LeverettNet fiber-optic network and the subscriber premises Ethernet wiring to the subscriber router, which serves the subscriber’s devices. The ONT device converts optical signals into electrical signals, and vice-versa. The ONT terminates the fiber optic line in an inner compartment and the premises Ethernet and telephone wiring in an outer compartment. The ONT is powered from the subscriber premises electrical system, through an uninterruptible power supply (UPS) unit.

Functions of ONT device

Optical network terminal (ONT) is an optical modem that connects to the termination point with an optical cable. It is used at end user’s premise to connect to the PON network on one side and interface with the user on the other side. Data received from the customer end is sent, aggregated and optimized by the ONT to the upstream OLT. ONT is also known as optical network unit (ONU). ONT is an ITU-T term, while ONU is an IEEE term. They both refer to the user side equipment in GPON network. A small difference between them might be the application locations. ONU can work in different temperature and weather conditions.

In practical applications, all this means is that the fiber is terminated in the ONT (the fiber line actually attaches to the box itself) and you then connect your devices (firewalls, switches, additional routers, etc.) into the available ethernet ports on the other side of the ONT.

ONTs can vary in features. They can either act as gateway devices and provide IP addresses to your devices, or they can bridge the connection between your provider and your network.

Some ONTs also have wireless capabilities and act as an all-in-one solution for your home and business. Not sure how to optimize your internal network? Our managed service team can provide the insight you need.

RicherLink GPON ONT device 

By introducing latest fiber GPON access technology, The RicherLink GPON ONT device brings carrier class high-end networking solution for advanced triple play services.