Lynx Technik yellobrik OTX 1712-ST Analog Sync / Video Fiber Optic Transmitter

The OTX 1712-ST is a compact analog sync or NTSC/PAL composite video to fiber optic transmitter, specifically engineered to overcome the limitations associated with distributing broadcast-quality analog reference and composite video signals over extended distances. When paired with the ORX 1702-1 fiber optic receiver, it forms a cost-effective optical transmission system suitable for analog sync reference signals or NTSC/PAL composite video. This solution is particularly beneficial for maintaining correct synchronization between remote installations. Unlike basic analog to fiber conversion solutions, the OTX 1712-ST incorporates technology to maintain a high degree of sync and burst phase stability during conversion and fiber transmission. The module converts the NTSC/PAL video signal to an SDI signal (including reference and other relevant information) before it is transmitted over fiber. Therefore, when used with NTSC or PAL video sources, it is possible to convert the fiber signal directly to SDI if required, using an SDI receiver such as the ORX 1802-2. The OTX 1712-ST provides a passive loop output and supports ST single-mode fiber connections. :contentReference[oaicite:4]{index=4}

Key Features

• Supports analog black burst, bi-level, tri-level sync signals, and NTSC/PAL composite video
• Passive loop output
• Broadcast-quality performance
• Error-free optical transmission
• ST single-mode fiber connection
• Transmission distance up to 10 km (6.2 miles) over single-mode fiber
• Supports hot swapping and hot plugging
• Compatible with yelloGUI for accessing additional internal settings

Technical Specifications

Analog Input

• Supports analog black burst, SDTV bi-level, HDTV tri-level sync signals, and NTSC/PAL composite video
• 1 x passive loop output (terminate if not used)
• 75 Ohm BNC connectors
• Standards: NTSC SMPTE 170M, PAL CCIR624, Analog tri-level sync SMPTE ST 274, ST 296
• Supported formats: 720p 50/59.94/60, 1080i 50/59.94/60, 1080p 23.97/24/25/29/30, 1080psF 23.97/24
• Multi-standard operation with auto-detect
• Return loss: 31 dB to 10 MHz

Fiber Output

• 1 x fiber optic single-mode output
• ST connection
• Compliant with SMPTE 297M-2006
• Wavelength: 1310 nm, Optical power -5 dBm
• TX active LED indicator on the side of the module
• Maximum distance: Up to 10 km (6.2 miles) over single-mode fiber*

Power Requirements

• Input voltage: +12V DC (supports 8 - 24V DC input range)
• Power consumption: Approximately 3.4W nominal

Physical Characteristics

• Dimensions: 140 mm x 42 mm x 22 mm (5.51” x 1.65” x 0.86”) including connectors
• Weight: 125 g (4.4 oz)
• Operating temperature: 5°C to 40°C (41°F to 104°F)
• Humidity: Up to 90% (non-condensing)

*Note: Distance is approximate. Actual distances may vary depending on the type of fiber cable and accumulated optical losses in the fiber link. It is recommended to assess link losses and perform optical budget calculations to ensure proper operation.