8 Channel XLR Audio to Fiber Converter

The product adopts digital coding technology, the audio interface is XLR, which can realize bidirectional long-distance transmission of audio, data, dry contact and ethernet signals through a single-mode optical fiber. The maximum transmission distance without distortion and without a repeater is 100 km. The audio interface adopts 24Bit AD/DA128K sampling, with studio-level transmission quality. It comprises a transmitter and a receiver, and it can be configured into 4-channel bidirectional audio mode and 8-channel unidirectional audio mode.

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

● It provides ordinary desktop, mini-desktop, and centralized card racks in various ways.

● Single fiber transmission and dual-fiber is optional.

● When the device has no fiber signal, it can detect whether the remote device is powered off or the fiber is cut.

● The audio adopts 24Bit AD/DA128K sampling, which has studio-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 for 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

Multi-Mode Fiber

50/125um, 62.5/125um

Maximum transmission distance:  5KM@62.5/125um single-mode fiber

attenuation : 3dbm/km

Wave Length: 820nm

Transmitting power: -12dBm (Min) ~-9dBm (Max)

Receiver sensitivity: -28dBm (Min)

Link budget: 16dBm

Single-Mode Fiber

8/125um, 9/125um

Maximum transmission distance: 40Km

Transmission distance: 40KM@9/125um single-mode fiber

attenuation: 0.35dbm/km

Wave Length: 1310nm

Transmitting power: -9dBm (Min) ~-8dBm (Max)

Receiver sensitivity: -27dBm (Min)

Link budget: 18dBm

● 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