1-Channel Video and 2-Channel Audio Fiber Multiplexer, Single-Mode 20km

The FT-923 from F-tone Networks is a single-channel fiber video multiplexer set that carries one video channel together with two simplex forward audio channels over a single-mode fiber up to 20 km. It accepts PAL, NTSC and SECAM video through a 75-ohm BNC input with gold center pin, while the two audio channels terminate on terminal blocks with 24-bit coding and SNR above 80 dB. The optical section uses a standard FC connector, and video differential gain stays below 1.5 percent for consistent color over the span. With a -45 to +75 °C operating range and MTBF above 100,000 hours, the set fits sites that need one camera plus two separate audio feeds, such as lobbies, stations and control posts.

Key Features

• 1-channel video and 2-channel simplex forward audio over single-mode fiber
• Up to 20 km reach via standard FC optical connector
• PAL/NTSC/SECAM video through 75-ohm BNC, differential gain below 1.5 percent
• 24-bit audio coding with SNR above 80 dB on terminal block interfaces
• Video SNR above 67 dB for long-distance image quality
• -45 to +75 °C operating range, MTBF over 100,000 hours

Applications

• Lobby and station surveillance with dual audio
• Control posts and monitoring rooms
• Commercial sites needing two separate audio feeds

For pricing, datasheets and OEM/ODM inquiries, contact the F-tone Networks sales team: una@f-tone.com / betty@f-tone.com · WhatsApp: +86 17761163895