Fiber Optic Cabinets, Cables, Pedestals and Terminals

The OSI (Open Systems Interconnection) model was introduced in 1984 and defines internetworking in terms of a seven layer stack. It serves as a practical framework for key network technologies like Ethernet and IP.

The 7 layers are:

Layer 7 – Application

Layer 6 – Presentation

Layer 5 – Session

Layer 4 – Transport

Layer 3 – Network

Layer 2 – Data Link

Layer 1 – Physical

Clearfield manufactures fiber management products that fall in to the Physical Layer – fiber termination products such as panels, PON cabinets and wall enclosures.

I recently was witness to an assault. The bouncer decided it was time to end it; time for him to grab some asphalt. With the bouncer’s left knee on the back of his neck, hands behind his back and a zip-tie around his wrists, the threat was stopped. There’s a Physical Layer for you…

Don’t underestimate the importance of Layer 1. Clearfield will continue to improve and master our fiber termination products that reside in the Physical Layer.

By Jim Pilgrim