4-Channel Broadcast Audio XLR over Fiber Converter

This device adopts digital coding technology, and the audio interface is XLR, which can realize bidirectional long-distance transmission of audio, data, dry contact and Ethernet signals through a single-mode optical fiber, and it’s maximum transmission distance is 100 km without distortion or relay. The audio interface uses 24Bit AD/DA128K sampling, and it has studio-level transmission quality.

The audio optical transceiver comprises an optical transmitter and an optical receiver, and it can be configured into 2-channel bidirectional audio mode and 4-channel unidirectional audio mode.

● All-digital optical fiber transmission platform, flexible configuration of multiple services on the same platform;

● Aluminum alloy anodized shell, IP40 protection level;

● The audio interface is XLR balanced interface, high dynamic range;

● Desktop type, 4U rack plug-in card type are available;

● Single fiber transmission, optional dual fiber;

● Audio uses 24Bit AD/DA128K sampling, and it has studio-level transmission quality;

● The audio interface provides three-level lightning protection function, which can pass the test of ITU-T K.21  (10/700 μS), common mode: 6KV, impedance (40 Ω).

● Audio          

Signal level: 0.5-4Vp-p

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

AD/DA bit width: 24Bit

Sampling frequency: 128K

Bandwidth: 20Hz-20KHz

Total harmonic distortion: <1%

Signal to noise ratio (SNR): >85dB

Connection terminal: XLR balanced interface

● Optical        

Working wavelength: 1310nm, 1550nm

Fiber: single mode 9/125um

Optical interface: FC, SC, ST

(The distance of optical fiber transmission is limited by the loss of optical path and the additional loss caused by connecting terminals, joints and patch panels. Transmission distance may also be limited by fiber bandwidth.)

● Power

Voltage: DC 12V

Power consumption: ≤3W

● Working Environment

Working temperature: -10℃—+70℃

Storage temperature: -40℃—+85℃

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

MTBF: ＞100,000 hours