The eFiberSat L/S-Band Satcom fiber transport subsystem provides a simple, cost-effective, and reliable RF connection between a satellite antenna and a satcom modem in those cases where coaxial cable is impractical or additional security is required. Fiber optic transmitters feature linear uncooled isolated DFB laser diodes. Fiber optic receivers feature high performance InGaAs photodiodes. The standard transported RF frequency band with high spur free dynamic range (SFDR) is 30 – 3000 MHz. Options exist for extending the frequency range to 6 GHz on the upper end, and/or 10 kHz on the lower end.

A single eFiberSat fiber transport link can accommodate any combination of up to four, uplinks and/or downlinks. eFiberSat utilizes Coarse Wavelength Division Multiplexing (CWDM) to transport all RF signals between the Indoor Unit (IDU) and the Outdoor Unit (ODU) over a single fiber. Low phase noise reference clocks may be transported from satcom modems or timing servers to elements at the antenna in a number of ways. An optional low noise transmitter pre-amplifier ensures a margin on signal-to-noise ratio (especially on low received power downlinks) while keeping the signal in the most linear operating range of the fiber link. Options exist for integrating Bias-Ts into ODU transmitters for the purpose of powering antennas and providing control/biasing to LNBs and BUCs. 13/18V (with or without 22 kHz) biasing is available on the ODU RF connectors.

The eFiberSat transport subsystem may be monitored in a number of ways. Locally, LEDs and dry contact relay alarms (IDU) provide status. There are multiple ways to monitor the subsystem remotely including serial or SSH console connection, HTTP web user interface, Optical Zonu’s Managed RFoF graphical command and control interface. The management interface also supports SNMP v2 and v3.

The standard RF interface is 50Ω SMA (IDU) and 50Ω N (ODU). The ODU is powered from 12 VDC (-48V optional). The IDU may be powered from AC or 48 VDC.