8 Channel RCA Audio over Fiber Extender

The 8 * RCA audio to fiber converter uses digital encoding technology and features an RCA (phono) audio interface. It enables the transmission of audio, serial data, DI/DO, and Ethernet signals over a single-mode optical fiber, allowing distortion-free bidirectional communication over a maximum distance of 100 km. The audio interface employs 24-bit AD/DA and 128K sampling, ensuring professional-grade transmission quality. The device consists of an optical transmitter and an optical receiver, which can be configured as either 4-channel bidirectional audio or 8-channel unidirectional audio.

● All-digital fiber optic transmission platform, the multi-service platform with a flexible configuration.

● The audio interface is RCA (phono), and the audio power supply is provided by a high-power toroidal transformer with +-18V power, offering a high dynamic range.

● The data and audio interfaces provide 3-level lightning protection, capable of passing the ITU-T K.21 (10/700 μS) common mode: 6KV impedance (40 Ω) test.

● It supports single-fiber transmission, with the option for dual-fiber configuration.

● It can detect the absence of fiber, indicating power loss or fiber breakage in the remote device.

● The audio component utilizes 24-bit AD/DA 128K sampling, guaranteeing professional-grade transmission quality.

● It supports bidirectional asynchronous data transmission (forward and reverse).

● The asynchronous data transmission rates range from 110 to 115.200 Kbps or higher.

● Asynchronous data can be RS232/RS485/RS422/Manchester code.

● Fiber

Multi-mode Fiber:

50/125um or 62.5/125um

Transmission distance: 5km @ 62.5/125μm multi-mode fiber, with attenuation of 3dB/km

Wavelength: 850nm

Transmit power: -12dBm (Min) ～ -9dBm (Max)

Receive sensitivity: -28dBm (Min)

Link budget:  16dBm

Single-mode Fiber:

8/125um or 9/125um,

Transmission distance: 40km @ 9/125μm single-mode fiber, with attenuation of 0.35dB/km

Wavelength: 1310nm

Transmit power: -9dBm (Min) ～-5dBm (Max)

Receive sensitivity: -27dBm (Min)

Link budget: 18dBm

● Audio Port

Signal level: 0.5～4Vp-p

Input/output impedance: 600Ω (unbalanced or balanced)

Bandwidth: 20Hz-20KHz

Total Harmonic Distortion: <1%

Audio A/D: 24-bit

Signal-to-Noise Ratio (SNR): >85dB

Noise ratio (SNR): ＞85dB

Connector: RCA

● Power Supply

System power: AC180V ～260V; DC –48V; DC +24V

Power consumption: ≤5W

● Environmental Indicators

Working temperature: -10℃—+60℃

Storage temperature: -40℃—+85℃

Working Humidity: 0%—95% (no condensation)

MTBF: ＞100,000 hours