Link Layer Systems designs, manufactures, deploys and maintains advanced networking products for switching, optical multiplexing and signal regeneration. All Link Layer solutions are fully OSS integrated and are capable of self-provisioning, self-monitoring and self-upgrades.

Link Layer's Carrier class Ethernet Plus™ network technology employs innovative features like Adaptive Tagging, Forward Encryption, and Topology Adaptive Multilink Address Routing (TAMAR). For protocol independent optical transmission services, dark fiber providers rely on the Link Layer Digital Access Photonic Network Elements (DAPHNE).

These optical building blocks are combined to create pure lambda networks with optical drop and insert, wavelength filtering and regeneration capabilities. With the introduction of tunable DFB-Array lasers for the C and L bands our intelligent optics technology allows Link Layer to build high performance DWDM networks that eliminate sparing and inventory requirements of previous generation fixed wavelength DFB lasers.