The first true dedicated network


Easy to set up and maintain
OMS makes network management child's play
It takes 4 days of training to turn a novice
into an expert


Wide variety of interface cards
for various industries
Extensive layer2/3 protocol suite
Support of delay sensitive applications


Redundancy on various levels
(fibre, PSU, network card,…)
Suited for harsh environments
Product life cycle of 15 years
backed by OTN Systems

Migrate applications to IP whenever the time is right

The roots of OTN (Open Transport Network) go back to the early nineties when a new transmission technology was introduced in public networks: SDH/SONET. OTN Systems was the first to apply this synchronous transmission technology to the industry.

Although OTN uses SDH/SONET at the lower levels, the product supports all layer 2/3 packet protocols to build proper private networks.

OTN comes with a rich set of interface cards which allow users to connect any kind of traditional, peripheral equipment easily. 

An OTN network consist of nodes interconnected by fibre. The nodes, housing the interface cards, are connected in a physical ring topology. The dual ring structure guarantees sub 50 msec reconfigurations. Rings can be interconnected and the whole network is managed by a single, user-friendly network management system called OMS.


OTN (Open Transport Network) is a unique system that can integrate virtually all existing applications for voice, data, LAN, video, SCADA, etc. into one high speed network, using a fibre optic backbone. The OTN product range is simple to install, configure and maintain.

View all OTN products »

SDH/SONET: a proven technology

SDH/SONET (Synchronous Digital Hierarchy) networks have been the workhorse for carriers for decades. The major advantage of the technology is that it provides synchronous services. This means that transmission delays are constant and predictable. This is extremely important for specific applications like teleprotection used by the power utilities or signalling applications encountered in a railway environment.

Due to the increase of packet data, carriers have decreased their investments in SDH/SONET equipment over the years. OTN Systems has followed the trend towards packet data and has implemented unique features on OTN to handle packet data efficiently e.g. SLAN.

SLAN: dedicated bandwidth for each application

OTN makes it easy to create dedicated Ethernet LANs for individual services. Some services are better off with dedicated bandwidth on the network, bandwidth which cannot be compromised by any other applications. For example, a SCADA system connected to an SLAN cannot suffer from interference from e.g. a CCTV application. The bandwidth of an SLAN is always there, no matter the circumstances. The amount of bandwidth dedicated to an application is configured at set up and can be re-adjusted whenever necessary via the OMS. Moreover, specific L2/3 protocols can be added to each individual SLAN. A couple of point-and-clicks on the OMS will do the job.

All networks carry information.
Some networks carry it exactly the way you want.