Televes OB4LC-4-55 optický uzol s 2 RF výstupmi a 55m optickým káblom

The Televes OB4LC-4-55 optical node stands out by integrating a 55-meter single-mode fiber cable directly with the receiver, eliminating the need for separate fiber patching at the subscriber end. This design simplifies FTTH installations where the fiber drop is pre-terminated and ready for immediate connection to the RF distribution network.

Highlights

• Two RF outputs for simultaneous terrestrial and satellite signal distribution
• LC/APC optical input for low-reflection connections
• Pre-attached 55m G.657.A2 bend-insensitive fiber cable
• Compact ABS housing suitable for indoor or protected outdoor use

In daily use

The OB4LC-4-55 receives optical signals at 1310 nm and converts them to RF across 47–790 MHz (terrestrial) and 950–2150 MHz (satellite). With an optical input range of -12 to -3 dBm, it delivers a stable 80 dBµV RF output level for both bands, ensuring consistent signal quality for DVB-T/T2 and DVB-S/S2 services. Power is supplied via 12V DC, consuming under 2 W.

Full specifications

• Optical input connector: LC/APC
• RF output connectors: F-type (2 outputs)
• Included fiber cable length: 55 m
• Fiber type: Single-mode G.657.A2
• Optical wavelength: 1310 nm
• Optical input power range: -12 to -3 dBm
• RF frequency range: 47–790 MHz (terrestrial), 950–2150 MHz (satellite)
• RF output level: 80 dBµV at -6 dBm optical input
• Power supply: 12V DC
• Power consumption: < 2 W
• Output impedance: 75 Ohm
• Housing material: ABS plastic
• Operating temperature: -5°C to +45°C
• Optical return loss: > 45 dB
• RF return loss: > 10 dB

Final note

For FTTH deployments requiring a pre-terminated fiber drop and dual RF outputs, the OB4LC-4-55 offers a streamlined, low-power solution.