16 channel RCA Broadcast Audio Fiber Transceiver

1-16channels of integrated audio audio optical transmitter / receiver adopt digital coding technology, and the audio interface is RCA (Lotus seat), which can realize audio signals, data signals, digital signals and Ethernet signals through a single-mode fiber Distance bidirectional transmission, the signal can be transmitted up to 100Km without distortion without repeating.

Severalimportant indicators of audio optical transceivers are:

A、Bit rate：16bits 20bits 24bits，The higher the bit rate increase, the more subtle changes in sound can be reflected.

B、Sampling accuracy：48K 96K 128K 196K (CD sampling accuracy is 44.1KHz / s)，Professional audio optical transceivers generally use 48K sampling, 96K, 128K, 196K is a future direction.

C、The signal-to-noise ratio is what we usually refer to as dynamic range. The unit is DB. The relationship between dynamic range and bit rate is: for each bit increase in bit rate, the dynamic range increases by 6 dB. At 16 bits, the dynamic range is 96db. This can meet the general needs, and 24 bits can achieve a dynamic range of 144 dB, which is fever-grade. So the current professional optical transceiver specifications can be summarized as: 24bit 48K sampling 90db.

Our audio optical transceiver, the audio interface uses 24Bit AD / DA, 128K sampling, studio-grade transmission quality.

The audio optical transceiver is composed of an optical transmitter and an optical receiver, and can be configured into 8 (2 stereo) two-way audio and 16 (4 stereo) unidirectional audio modes.

●  All-digital fiber optic transmission platform, multi-service platform with flexible configuration;

●  Can provide ordinary desktop mini desktop, multiple ways of centralized card-type rack；

●  Core of large-scale ASIC with independent intellectual property rights；

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

●  Single fiber transmission, optional dual fiber；

●  Can detect when the remote device is powered off or fiber-optic when receiving no light；

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

●  Provides two-way asynchronous data (forward and reverse)；

●  Asynchronous data, transmission rate above 110-115.200Kbps；

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

● Fiber

Multimode Fiber:

50/125um or 62.5/125um，

Transmission diatance：       2Km  Multimode fiber，attenuation(3dbm/km )

wavelength:  850nm

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

Receive sensitivity: -28dBm (Min)

Link budget:  16dBm

Singlemode Fiber:

8/125um or 9/125um,

Transmission diatance：     20Km  Singlemode，attenuation(0.35dbm/km )

wavelength:          1310nm（Selective 1550nm wavelength for ultra-long distance transmission）

Transmit power:      -9dBm (Min) ～-5dBm (Max)

Receive sensitivity:    -27dBm (Min)

Link budget:       18dBm

● Audio port

Signal level：      0.5～4Vp-p

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

AD / DA-bit wide: 24Bit

Sampling frequency: 128K

Bandwidth：          20Hz～20KHz

Total harmonic distortion： ＜1%

Noise ratio (SNR):  ＞85dB

Physical interface： FJ45/RCA

● Electrical and mechanical characteristics

System power：     AC180V ～260V；DC –48V；DC +24V

Power consumption： ≤5W

structure appearance:         210*130*45mm  Pocket

● Environmental indicators

Working temperature: -10℃—+60℃

Storage temperature: -40℃—+85℃

Working Humidity: 0%—95%（no condensation）

MTBF： ＞100,000 hours