Two-channel balanced audio optical terminal is used for long-distance one-way fiber transmission of two-channel balanced audio signals. The front-end balanced audio signal is directly input, transmitted through optical fiber and output from the back end to an active speaker or power amplifier drive speaker. Using digital audio coding technology, the system index reaches the broadcasting Class A standard; Adopt modular design mode, convenient for customers to flexibly choose or customize the configuration according to the specific application situation; It can also provide multi-channel balanced audio transmission on the optical fiber, which is convenient for users to improve the utilization rate of optical cable; It has the advantages of high integration, small volume, low power consumption, reliable operation, easy installation and use, etc. It has the characteristics of high stability, high reliability and high cost performance.

Technical parameter

Optical characteristics:

The wavelength is 1310nm&1470nm~1610nm

Optical power -14~ -8 DBM / -5~0dBm

Optical fiber type 50/125um multi-mode, 62.5/125um multi-mode, 9/125um single-mode

Receiver sensitivity -30dBm

Optical interface FC, ST, SC, LC(Optional)

Transmission distance 0~500M(multi-mode) / 20/40/60/80KM(single mode)

Balanced audio parameters:

Audio channel 2

Audio input interface XLR female header

Audio output interface XLR Male header

Input/output impedance 10K Ohm

Input capacitance 10 pF

Maximum input/output voltage 1.0Vp-p

Frequency response 20 Hz ~ 24kHz @±3dB

Sampling rate 48kHz

Signal to noise ratio > 80dB

Other parameters:

Working power supply DC12V1A

Operating temperature -20℃~ +70℃

Storage temperature -40 ° C to +85 ° C

Operating humidity 0~95% No condensation

Trouble-free working time ≥ 100,000 hours

Overall dimensions 168 *154*45mm