Unbalanced RCA Audio over Fiber Converters- ST Optical module,SM 20Km 1 Pair

Features:

1. This unit can extend 2 or 4 port Unbalanced RCA Audio over an optical fiber cable to far end. It allows RCA audio device synchronous transmission, RCA Audio signal is transmitted from T (TX) in the direction of R (RX). Bidirectional 2 ports RCA audio is optional.
2. With ST optical interface ,Compatible with Singlemode and Multimode optical fiber cable. Single mode single fiber up to 12.4 miles (20Km), Mutlimode single fiber up to 0.31 miles(500meters).
3. Adopt FPGA, digital coding/decoding and clock recovery technology, high integration and high stability ,it is much better than ordinary one on marketing. 
4. Compact design, Sturdy Metal. Bilateral heat dissipation.
5. LEDs for power supply and optical fiber link status indication which can monitor the operating status of the system.
6. Typically used in applications for Campus, public places, Staging, Theaters, Stadiums, Parks, Broadcast, studio audio and more. and are available for stand-alone and desktop type, or wall mounted, installations.
7. No need to set up ,Simply plug in an Optical ST port and RCA audio connectors at TX and RX sides,  

Overview

Unbalanced analog audio optical transceiver is a single chip stereo analog data fiber optical converter that uses bit-stream converter (ADC) technology.  The low power consumption and low voltage requirements make the device ideal for use in low-voltage and low-power portable data and audio devices.

Audio Specification  

1.Full-size output sine wave, 997 Hz;  MCLK = 12.288 MHz.  Fs basic probability mode = 48 kHz, SCLK = 3.072 MHz,  

2.Measurement bandwidth 10hz to 20khz;  Fs is high rate mode = 96 kHz,  

Advanced Audio Configuration

1.Stereo single - end input configuration  

2.High linearity, dynamic range and low distortion 

Optical Port:

1. Optical connector: ST (FC/SC/LC is optional).
2. Wavelength: 1310nm&1470nm~1610nm.
3. Tx power ＞-7db
4. Rx sensitivity ＞-24db
5. Transmission range: 0-20km for SM, 0-500m for MM.
6. Optical fiber type: universal 9/125u single mode, 50/125u or 62.5/125u multimode.

Audio index:

1. Dynamic bandwidth:96dB
2. Total harmonic distortion (THD): -68dB
3. Signal-to-noise ratio: -68dB
4. Signal-to-noise ratio（S/N）: 60dB
5. Sampling frequency: 32kHz  44.1kHz  48kHz
6. Audio A/D sampling: 24 Bit
7. Frequency response: 10～20kHz
8. Gain mismatch between channels: 0.1dB
9. Gain error: ±5%
10. Gain drift: 100 ppm/°C
11. Amplitude-frequency characteristic: ≤±0.5 dB
12. Audio input/output impedance: 600 Ω balance
13. Audio maximum input/output voltage: 0~2V

LED indicators:

1. PWR: ON upon power in.Off upon powered off
2. FIBER:Off when fiber optical signal is blocked or excessive attenuation. On when fiber signal is received properly

General Spec:

1. Operating temperature :-20 to 70°C
2. Storage temperature: -40 to 80°C
3. Relative humidity: 5 to 95%（non-condensing）
4. Working life(MTBF): ＞100,000hours
5. Installation: stand-alone.
6. Support wide range working Voltage: AC100-240V 50/60Hz, DC5V
7. Power plug：US/EU/UK/AU standard is optional.
8. Dimension: 104mm(L)×104mm(W)×28mm(H).

Package include:

• 1x Unbalanced Audio Fiber Transmitter
• 1x Unbalanced Audio Fiber Receiver
• 2x Power supply adapter
• 1x Manual.