48V Phantom Power Supply 8-Channel XLR Broadcast Audio to Fiber Converter

This 48V Phantom 8-Channel XLR Audio to Fiber Converter adopts digital coding technology, and the audio interface is XLR (Canon socket). It can realize long-distance bidirectional transmission of audio signals, data signals, switch signals and Ethernet signals through a single-mode optical fiber, and can transmit the signal without distortion and relay up to 100km. The audio interface adopts 24Bit AD/DA, 128K sampling, and studio-level transmission quality. It can provide +48V phantom power for condenser microphones.

The audio optical terminal is composed of an optical transmitter and an optical receiver, and can be configured as 4-channel bidirectional audio and 8-channel unidirectional audio.

● Fully digital optical fiber transmission platform, flexible configuration of multiple services on the same platform

● 19-inch 1U aluminum alloy anodized shell, IP40 protection level;

● The audio interface is an XLR balanced interface, and the audio power supply is a high-power toroidal transformer, +-18V power supply, high dynamic range;

● It can provide +48V phantom power for condenser microphones;

● It can provide ordinary desktop, mini desktop, centralized card-type rack and other methods;

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

● Single fiber transmission, optional dual fiber

● It can detect whether the remote device is powered off or broken when there is no light

● The audio uses 24Bit AD/DA, 128K sampling, studio-level transmission quality

● A variety of power supply methods are available: single AC220V, AC+AC; etc. Dual power backup

● 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 (Cannon) balanced interface

Audio input: with +48V phantom power supply

● Data          

Data interface: RS-232, RS-422, RS-485, TTL

Data format: NRZ, Manchester, Bi-phase

Rate: 110bps-115.200Kbps

Connection terminal: RJ45 Input resistance: 125Ω

● Optical     

Working wavelength: 1310nm, 1550nm

Fiber: Single mode 9/125um

Optical interface: FC, SC, ST

The distance of fiber transmission is limited by the loss of the optical path and the additional loss caused by the connection terminals, connectors, and patch panels. The transmission distance may also be limited by the fiber bandwidth

● Electrical & Mechanical Characteristics  

Voltage: AC165V ~ 265V; DC –48V; DC +24V

Power consumption: ≤5W

● Working Environment  

Working temperature: -10℃—+70℃

Storage temperature: -40℃—+85℃

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

MTBF: ＞100,000 hours