2 Ch Bi-Directional (2 Way) Line-Level Balanced XLR Audio Over Fiber Extender to 20 Km SMF , Providing 16-bit or 24 bit Audio Quality


Regular price $599.00



  • 2 Channels Bi-directional (2 way) Line-Level balanced audio XLR female and male. 20 Km on Single-Mode Fiber or 500 meters on Multi-Mode Fiber; not directly support Mic-Level Audio. 
  • So It can not directly with the Microphone, if the Audio is from Microphone, the user need other devices like DJ controller/ Audio MIxer which has Amprifier function to work with our Extender. if the microphone is Dynamic type and need to directly connect with our Extender, please select our this item.
  • Supports 16-bit or 24 bit digitally encoded broadcast quality balanced audio
  • Easy stand-alone or rack-mount installation.
  • Plug and Play design ensures adjustment-free installation and operation, and optical adjustments are never required; LED indicators are provided to instantly monitor the system operating status.
  • with Bi-directional Hot Pluggable SFP module.


BY-XLR-352 includes 2 Ch Bi-directional balanced audio fiber transmitters and receivers, which supports 2 Channels 2 ways 16-bit or 24 bit digitally encoded broadcast quality balanced audio over 1 core multi-mode or single-mode optical fiberr (multi-mode up to 500 Meters or single-mode optical fiber up to 20 Kilometers).

Caution:   The Input & Output Audio should be connected with the Line-Level & Balanced Interface of the DJ controller or Audio Mixer,  if not,  the wrong connection could damage our devices or no sound out.  for more,  please check the Images of Application 1 & 2.

Balanced Audio:
Number of Channels:2 Input +2 Output
Input Connector: XLR(female)
Output Connector: XLR(male)
Input / Output Impedance:10K Ohm
Input capacitance LINE inputs:10 pF
Max input/output voltage: +4 dBu (1.228 Volts).  if over the limit,  the audio distortion will appear.
Frequency Response:10 Hz~24kHz @±3dB
Sample Rates From:48kHz
SNR:> 80dB
Wavelength: 1310nm/1550nm
Output Power: -14~ -8dBm
Supported Optic fiber: 50/125u multi-mode,62.5/125u multi-mode,9/125u single-mode
Rx sensitivity:-30dBm
Optical connector: 1 x LC, 1 x ST, 1 x LC, 1 x FC
Distance: 0~500 Meters (MMF) / 0~20 Kilometers (SMF)
Electrical & Mechanical:
Input Power Requirements:DC 5V@2A
Power Adapter:AC 90V~240V
Power Consumption:< 5W
Stand-Alone Dimensions:168mm × 154mm × 45mm
Shipping Weight:(include Transmitter & Receiver ) 2.5kg
Operating Temperature:-20°C ~ +75°C
Storage Temperature:-40°C ~ +85°C
Relative Humidity:0% ~ 95% (non-condensing)
MTBF:>100,000 hours
Rental, Staging, Theater, Stadiums, Theme Parks, Broadcast/Studio, CCTV audio and Professional AV applications etc 

1. 1 x transmitter with optical module.
2. 1 x receiver with optical module.
3. 2 x Power supply adapters with US/EU/UK/AU plug. 
About shipment:
Once order received, we will worldwidedeliver by DHL Express for about 1 week delivery.

Or shop on Amazon with worldwide Shipment (Free & Expedited)

BY-XLR-352-LC (1 x LC)     BY FBA

BY-XLR-352-LC (1 x LC)     BY FBM

BY-XLR-352 (1 x ST)          

BY-XLR-352-24B (2Ch 2 Way, 24 Bit version)

BY-XLR-352-LC (1 x LC)     Note: Ship worldwide

or Directly Contact us at sales@transwan.com.cn for offline transaction.