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Features:

8 Channels Line-Level & Balanced Audio fiber optic extender with XLR ports (female to male) 20 Km on SMF or 500 meters on MMF；
If the Audio Source is Condenser Microphone which need 48V Phantom Power Supply, BY-XLR-329 can provide by pushing the switch button and the blue light is "ON", then It can directly conect with Condenser Microphone.
If the Audio is from other Types Microphone (Not Condenser Microphone), the user need other devices like DJ controller/ Audio MIxer which has Amprifier function to work with our Extender under the button light is "OFF".
Supports 16-bit digitally encoded broadcast quality balanced audio; Easy stand-alone or 1U Chassis 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.

Description:

BY-XLR-326 includes optical transmitter and receiver, it enables 8 Channels balanced audio over optical fiber for extreme long distance, it has 8 x Switchable 48V Phantom Power Supplies.

Work Mode A: Directly Connect with Condenser Microphone by providing 48V Phantom Power when the switcher light is “ON” by Pushing the button.

Work Mode B: If Audio Source is not from Condenser Microphone, the Switcher light much be “OFF”, and the Audio MIxer or DJ Controller is needed before Audio Source

Caution:
1.Always ensure the 48V switch is truned off when Phanton Power no needed.
2.Firstly Plug in phantom microphone's XLR cable, then turn the phantom power on
3.Turn off phantom power, then unplug the phantom microphone
Note: If Connecting Devices which don't have phantom power protect, Once turn the phantom power on, it may damage your equipment. So Always ensure the 48V switcher light is turned off when you disconnect your microphone.

Optical：
Wavelength: 1310nm
Output Power: -14~ -8dBm
Supported Optic fiber: 50/125u multimode，62.5/125u multimode，9/125u single mode
Rx sensitivity: -30dBm
Optical connector: 1 x LC (default), 1 x ST, 1 x SC, 1 x FC optional
Distance: 0~500 Meters (MMF) / 0~20 Kilometers (SMF)
Balanced Audio:
Number of Channels: 8
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). Caution: If Mixer output over the limit, it will burn out the chip
Frequency Response: 20 Hz～24kHz @±3dB
Sample Rates From: 48kHz
SNR:> 80dB
Electrical & Mechanical:
Input Power Requirements: DC 5V@2A
Power Adapter: AC 90V~240V
Power Consumption: < 5W
Stand-Alone Dimensions: 1 U Chassis
Shipping Weight: (include Transmitter & Receiver ) 10.00 kg
Environmental:
Operating Temperature: -20°C ~ +75°C
Storage Temperature: -40°C ~ +85°C
Relative Humidity: 0% ~ 95% (non-condensing)
MTBF: >100,000 hours
Application
Rental, Staging, Theater, Stadiums, Theme Parks, Broadcast/Studio, CCTV audio and Professional AV etc

Package contains:
1. 1 x transmitter with SFP module.
2. 1 x receiver with SFP module.