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4 Channel RCA to Fiber Optic Converter

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Type : RCA Audio to Fiber Converter
Description :

This device utilizes digital encoding technology, with an RCA audio interface, allowing for long-distance bidirectional transmission of audio signals.


This device utilizes digital encoding technology, with an RCA audio interface, allowing for long-distance bidirectional transmission of audio signals, serial data signals, di/do signals, and Ethernet signals through a single-mode optical fiber. The maximum transmission distance without distortion or the need for repeaters is 100 km.


A fully digital fiber optic transmission platform that allows for flexible configuration of multiple services on the same platform.

Various options are available, including standard desktop, mini desktop, and rack-mount configurations.

It utilizes a proprietary large-scale integrated circuit core with independent intellectual property rights.

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

It supports single-fiber transmission, with the option to select dual-fiber transmission.

It is capable of detecting the absence of a fiber signal, indicating power failure or fiber breakage at the remote end.

The audio transmission utilizes 24-bit AD/DA and 128K sampling, ensuring high-quality broadcast-grade transmission.

It provides bidirectional asynchronous data transmission (both forward and reverse).

The asynchronous data transmission supports rates above 110-115.200 Kbps.

The asynchronous data can be in RS232/RS485/RS422/Manchester code format.


● Fiber

Multimode Fiber:

50/125um or 62.5/125um

Transmission distance: 2 km for multimode fiber with attenuation of 3 dB/km

Wavelength: 850nm

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

Receiver Sensitivity: -28dBm (Min)

Link budget: 16dBm

Singlemode Fiber:

8/125um or 9/125um

Transmission distance: 20 km for single-mode fiber with attenuation of 0.35 dB/km (customization required for longer distances)

Wavelength: 1310 nm (1550 nm for ultra-long-distance transmission)

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

Receiver Sensitivity: -27dBm (Min)

Link budget: 18dBm


● Audio Interface

Signal level: 0.5~4Vp-p

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

AD/DA Bit Width: 24-bit

Sampling Frequency: 128K

Bandwidth: 20Hz~20KHz

Total Harmonic Distortion: <1%

Signal-to-Noise Ratio (SNR):  >85dB

Physical Interface: FJ45/RCA


● Environmental Indicators

Working temperature: -10℃—+60℃

Storage temperature: -40℃—+85℃

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

MTBF: >100,000 hours


Product Name

4 Channels RCA Audio to Fiber Optic Converter

Function Description

4 channels unidirectional audio (4A↑, RCA)

Port Description

1*100M optical port, 4*audio ports

Power Supply

External power supply +5V

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

Power consumption: ≤5W

Product Size

(L×W×H) 93 * 70 * 25mm mini type




application of RCA to Fiber Optic Converter


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