Televes OB1F20LC Optical Fibre Converter with 20m Cable, LC/APC to F-Type, 1 Output, B2ca Fire Rating

In fibre-to-the-home (FTTH) deployments, the optical signal must be converted to RF for distribution to TVs and set-top boxes. The Televes OB1F20LC solves this by providing a compact, high-performance optical node that converts an optical TV/SAT signal (1200–1600 nm) into a single RF output covering 47–2400 MHz. With an integrated 20-metre single-mode fibre cable terminated with LC/APC connector, it offers flexible installation directly at the subscriber premises or in a central cabinet. The die-cast metal housing ensures durability, while the B2ca-s1a,d1,a1 fire rating meets stringent building safety standards for in-wall or riser use.

Who is it for

This optical converter is ideal for installers and operators deploying FTTH networks in residential or commercial buildings. It suits scenarios where the optical termination point is remote from the RF distribution equipment, thanks to the 20-metre pigtail. It is also suitable for MDU (multi-dwelling unit) applications where a single optical fibre serves one apartment, converting the signal for local coaxial distribution.

Main features

• Integrated 20 m single-mode fibre (G.657.A2) with LC/APC connector, ready for direct splicing or patching.
• Wide RF output range 47–2400 MHz, supporting both terrestrial TV and satellite IF bands.
• Remote powering via the RF output (12 VDC), eliminating the need for a local power outlet.
• Low power consumption (< 2 W) and low noise figure (< 8 dB) for efficient operation.
• Die-cast metal housing with B2ca-s1a,d1,a1 fire rating for safe installation in building risers.
• High output levels: 80 dBµV (SAT) and 75 dBµV (TV) for -5 to 0 dBm optical input.

Specifications

• Product type: Optical Fibre Converter
• Optical input connector: LC/APC
• RF output connector: F-type
• Number of RF outputs: 1
• Integrated optical cable length: 20 m
• Integrated optical cable type: Single-mode fibre (SMF), G.657.A2
• Cable fire rating: B2ca-s1a,d1,a1
• Optical input wavelength range: 1200–1600 nm
• Optical input power range: -15 to +5 dBm
• RF output frequency range: 47–2400 MHz
• RF output level (SAT): 80 dBµV (for -5 to 0 dBm optical input)
• RF output level (TV): 75 dBµV (for -5 to 0 dBm optical input)
• RF output impedance: 75 Ohm
• Powering method: Remote via RF output (12 VDC)
• Power consumption: < 2 W
• Noise figure: < 8 dB
• Operating temperature: -5 to +45 °C
• Housing material: Die-cast metal
• Application: Converts optical TV/SAT signals to RF for distribution

Tips

For optimal performance, ensure the optical input level is within -15 to +5 dBm. When installing, avoid bending the fibre cable beyond its minimum bend radius (typically 10 mm for G.657.A2). If remote powering is used, verify that the connected RF device can supply 12 VDC through the coaxial cable. Always follow local fire safety regulations when routing the B2ca-rated cable through building penetrations.