Data confidentiality and security are key requirements for any enterprise in industry verticals including finance, transportation, utilities, healthcare, public safety, defense and government. The Nokia Quad 10G encryption transponder belonging to the Nokia 1830 Photonic Service Switch (PSS) portfolio adds physical (Layer 1) encryption to optical data links, providing end-to-end protection against loss of confidentiality along the fiber. The module supports four independent multi-rate 10G channels with diverse types of data interfaces including 8G/10G Fibre Channel (FC), 10 Gigabit Ethernet (10GE), Optical Transport Unit 2 (OTU2), and 5G DDR InfiniBand. Software licenses are available for encryption of ports.