Ceiling and desktop VLC transceivers for highly secure in-room network communications


FireFly has developed, tested, and already deployed the company's first products, SecureLink for conference room and office environments requiring the absolute best security and avoidance of eavesdropping. These stand-alone units can be installed in most indoor room settings and are ideal for confidential government or corporate meetings, providing highly secure and addressable (person specific) data communications, thus enabling data access and transmission based on personnel need or security clearance.  Since the signal uses light, transmissions are virtually impossible to intercept and stay within a targeted area near the intended user.


  • Secure indoor Ethernet communication link
  • Point to point and point to multipoint operation
  • Multiple LED options (Red, green, blue, infrared)
  • Adaptive Coding and Modulation (ACM)
  • Multiple interface and powering options
  • Security
  • 128-bit AES CCMP encryption
  • End-to-End encryption via  pairwise keys
  • Strict authentication rules
  • QoS support (8 levels of packet prioritization)
  • High data rates
  • 200+ Mbps (visible)
  • 700+ Mbps (infrared)




Ceiling Unit Specs (access point)

Optical Transmitter: LED (Red, Green, Blue user selectable)
Optical Transmit Power: 10 ... 20 mA
Transmit angle (FWHM): 6 degrees
Receive angle (FWHM): 12 degrees
Mode of operation: point-to point/point to multipoint
Modulation: Adaptive Coding and Modulation (ACM)
Data rate: up to 220 Mbps
Recommended Distance: up to 2,5 m (8 ft.)
Power Consumption: < 3W
Operating Temperature: 5…+45 degrees
Network interface: 100/1000 BASE-TX with PoE
Network Protocol: Ethernet 
Security: 128-bit AES CCMP Encryption
Encrytion mode: End to end Encryption via pairwise keys
Quality of Service: Packet prioritization (8 levels)
Dimensions: (LxWxH) (135 x 90 x 50) mm, (5.3 x 3.5 x 2) in.
Weight: 350 g (12.3 oz.)



Tabletop Unit Specs (subscriber unit)

Optical Transmitter: LED (Red, Green, Blue user selectable)
Optical Transmit Power: 10 ... 20 mA
Transmit angle (FWHM): 6 degrees
Receive angle (FWHM): 12 degrees
Mode of operation: point-to point/point to multipoint
Modulation: Adaptive Coding and Modulation (ACM)
Data rate: up to 220 Mbps
Recommended Distance: up to 2,5 m (8 ft.)
Powering option: Micro USB port
Power Consumption: < 3 W
Operating Temperature: 5…+45 degrees Celsius (41…113) F
Network interface: 100/1000 BASE-TX (MDIX) or USB 3.0
Network Protocol: Ethernet 
Security: 128-bit AES CCMP Encryption
Encryption mode: End to end Encryption via pairwise keys
Quality of Service:  Packet prioritization (8 levels)
Dimensions: (LxWxH) (130 x 75 x 35) mm, (5.1 x 3.0 x 1.4) in.
Weight: 220 g (7.8 oz.)


secure network access