16 Channel Audio XLR over Fiber Converter

This device uses digital coding technology, and the audio interface is XLR. It can realize bidirectional long-distance transmission of audio, data, dry contact and Ethernet signals through a single-mode optical fiber. The 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. It comprises an optical transmitter and an optical receiver, which can be set to 8-channel bidirectional audio mode and 16-channel unidirectional audio mode.

● The audio interface is XLR balanced interface, powered by a high-power toroidal transformer with a +/-18V power supply and a high dynamic range.

● Single-fiber transmission, with optional dual-fiber.

● It can detect whether the remote device is powered off or disconnected when there is no fiber received.

● The audio adopts 24-bit AD/DA 128K sampling, with broadcast-grade transmission quality.

● It provides bidirectional asynchronous data (forward and reverse)。

● Asynchronous data has a transmission rate of 110-115.200Kbps or higher.

● Asynchronous data can be RS232/RS485/RS422/Manchester code.

● The audio interface provides a 3-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 depth: 24Bit

Sampling frequency: 128K

Bandwidth: 20Hz-20KHz

Total harmonic distortion: <1%

Signal-to-noise ratio (SNR): > 85dB

Connecting terminal: XLR balanced interface

● Fiber

Fiber: Single/Dual fiber

Wavelength: 850nm/1310nm for multi-mode; 1310nm/1550nm for the single-mode

Connector: FC/SC/ST/LC (SFP)

Distance: 20-120km

Typical transmission power:

single-mode 1310/1550nm: >-9dBm

multi-mode 850nm:>-18dBm

multi-mode 1310nm:>-25dBm

Receiver Sensitivity: -28dBm~- 40dBm

● Working Environment

Working temperature: -10°C ~ 50°C

Working Humidity: 5%~95 % (no condensation)

Storage temperature: -40°C ~ 80°C

Storage Humidity: 5%~95 % (no condensation)

MTBF: ＞100,000 hours