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16 Channel XLR Audio to Fiber Converter

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Type : XLR Audio over Fiber
Description :

The device utilizes digital encoding technology, and it employs an XLR audio interface.


The device utilizes digital encoding technology, and it employs an XLR audio interface, allowing the transmission of audio signals, data signals, dry contact signals, and Ethernet signals over single-mode optical fiber for long-distance bidirectional communication. It can transmit signals without distortion or the need for relays for distances of up to 100 km. The audio interface features 24-bit AD/DA conversion with a sampling rate of 128 kHz, ensuring professional-grade transmission quality. It consists of both an optical transmitter and an optical receiver, which can be configured to support either 8 channels of bidirectional audio or 16 channels of unidirectional audio.


Audio over Fiber Converter Audio over Fiber Converter


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

The data and audio interface provide a 3-level lightning protection function, and can pass the test of ITU-T K.21 (10/700 μS) common mode: 6KV impedance (40 Ω);

Single fiber transmission and dual fiber is optional;

It can detect whether the remote device is powered off or the fiber is broken when there is no fiber received;

Audio adopts 24Bit AD/DA 128K sampling, studio-level transmission quality;

Provide bidirectional asynchronous data (forward and reverse);

Asynchronous data transfer rate than 110-115.200Kbps;

Asynchronous data for RS232/RS485/RS422/Manchester code.


● Audio

Signal level: 0.5-4Vp-p

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

AD/DA-bit wide: 24Bit

Sampling frequency: 128K

Bandwidth: 20Hz-20KHz

Total harmonic distortion: <1%

Signal-to-Noise ratio (SNR): > 85dB

Connecting terminal: XLR balanced interface


● Fiber

Number of Fiber Ports: 2

Optical Wavelength:

850nm/1310nm for multi-mode optical 

1310nm/1550nm for the single-mode optical interface

Fiber Core: Single/Dual fiber core

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

Distance: 20km-120km

Typical output 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




Function Description

16-channel xlr audio over fiber

Port Description

16-channel audio XLR, 1 optical interface


AC220V or DC-48V (power supply optional)


(L×W×H) 440×202×45mm 19-inch 1U rack




application of xlr to fiber converter

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