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Transmitting audio / video over fiber

Equipment for fiber audio/video transmission

3

 

This class of equipment provides transmission of analog video and audio signals, as well as control signals to longer distances (2, 20, 60, 100 km) per optical cable in digital form. High noise immunity and reliability of this equipment allows creating on its base scaling video surveillance systems. When using along with multimedia switchboards one can possible to create conference-communication system, as well as system of transporting air-video signal from studio to head station. Models with 64 video ports have modular system that allows flexible use of equipment capacities.

Пример использования

Example of application

Оптический кабель (используется одно волокно)

Optical cable (one fiber used)

Видеомикшер

Video mixer

Basic parameters:

  • It is performed in metal case, 19” column or desktop variant with built-in or remote power units 220В 50 Hz.
  • There are different configurations with 1, 2, 3, 4, 8, 16, 32, 64 video ports in various ratio with audio ports and transmission data ports (TD)
  • Transmission of audio signal is carried out in stereophonic format (2 channels)
  • Video connector of BNC type
  • Audio connector RJ-45
  • Data transmission port is realized at connector RJ-45, allows to control remotely devices of positioning of cameras of monitoring, switchboards etc.
  • Duplex communication is carried out via one fiber
  • Optical connector of FC/PC or SC/PC type (per request)
  • Light power indication, ports operation, synchronization, reception and transmission

Technical parameters:

Video

Chromatic level system

PAL / NTSC / SECAM

Video signal

1Vp-p

Input resistance

75 Ohm

Transmission band

6.5 MHz

Frequency

13.5 MHz

Capacity

8 bit or 10 bit

Differential gain

1%

Differential phase

Signal/noise

67 dB

Change of length of color-brightness signal pulse

10 ns

Deviation of multiplication of color-brightness signal

±10%

Connector type

BNC

Audio

Frequency band

20 Hz~20 kHz

Sampling frequency

96 kHz

Capacity

16 bit (24 bit optionally)

Input resistance

600 Ohm/non-balance

Output resistance

600 Оhm/non-balance

Income/outcome voltage

2Vp-p

Signal/non-balance noise

75 dB

Harmonic distortions

0.1%

Connector type

Connector with screw fastening

Asynchronous data transmission

Interfaces

RS485/422 Manchester (CH1, 3, 5, 7) or
RS232(CH2, 4, 6, 8)

Operation mode

Duplex/semi-duplex (depends on model)

Transmission rate

DC~128 Kb/s

Error coefficient

<1×10-9

Audio connector

RJ-45

Power supply

Voltage, frequency, power consumed

220 V, 50 Hz, 5 W

Work and storage conditions

Working temperature

-10°C - +70°C

Temperature of storage

-40 °C - +80 °C

Accessible humidity

Up to 95% (without condensate)

Transmission range

20 km (SM, single-mode fiber)
60 km (SM, single-mode fiber)
100 km (SM, single-mode fiber)
2 km (MM, multi-mode fiber)

Optical connector

FC/PC or SC/PC (as per request)

Marking and graphic representation of the models offered:

Marking

Graphical symbol

Description

SFO-1V-SM20

1V↑

1Video

SFO-1V-1D-SM20

1V↑+1D↓

1Video + 1ПД

SFO-1V-1A-SM20

1V↑+1A↑

1Video + 1Audio

SFO-1V-1A-1D-SM20

1V↑+1A↑+1D↓

1Video + 1Audio + 1ПД

SFO-1Vbi-SM20

1V↑↓

1Video duplex

SFO-1Vbi-1D-SM20

1V↑↓+1D↓

1Video duplex + 1ПД

SFO-1Vbi-1Ab-SM20

1V↑↓+1A↑↓

1Video duplex + 1Audio duplex

SFO-1Vbi-1A-1D-SM20

1V↑↓+1A↑+1D↓

1Video duplex + 1Audio +1ПД

SFO-1Vbi-1Abi-1D-SM20

1V↑↓+1A↑↓+1D↓

1Video duplex + 1Audio duplex +1ПД

SFO-2V-SM20

2V↑

2Video

SFO-2V-1A-SM20

2A↑

2Audio

SFO-2V-1D-SM20

2V↑+1D↓

2Video + 1ПД

SFO-2V-2A-SM20

2V↑+2A↑

2Video + 2Audio

SFO-2V-1A-1D-SM20

2V↑+1A↑+1D↓

2Video + 1Audio + 1ПД

SFO-2V-2A-1D-SM20

2V↑+2A↑+1D↓

2Video + 2Audio + 1ПД

SFO-2V-2Abi-SM20

2A↑↓

2Audio duplex

SFO-2Vbi-1D-SM20

2V↑↓+1D↓

2Video duplex + 1ПД

SFO-2Vbi-2Abi-SM20

2V↑↓+2A↑↓

2Video duplex + 2Audio duplex

SFO-3V-1A-1D-SM21

3V↑+1A↑+1D↓

3Video + 1Audio + 1ПД

SFO-4A-SM20

4A↑

4Audio

SFO-4V-4A-SM20

4V↑+4A↑

4Video + 4Audio

SFO-4V-1Abi-3Dbi-SM20

4V↑+1A↑↓+3D↑↓

4Video + 1Audio duplex + 3ПД duplex

SFO-4V-SM20

4V↑

4Audio

SFO-4Abi-SM20

4A↑↓

4Video duplex

SFO-4V-1D-SM20

4V↑+1D↓

4Video duplex + 1ПД

SFO-4V-4A-SM20

4V↑+1A↑+1D↓

4Video + 1Audio + 1ПД

SFO-4Vbi-4Abi-SM20

4V↑↓+4A↑↓

4Video duplex + 4Audio duplex

SFO-8V-SM20

8V↑

8Video

SFO-8V-1D-SM20

8V↑+1D↓

8Video + 1ПД

SFO-8V-8A-SM20

8V↑+8A↑

8Video + 8Audio

SFO-8V-1A-1D-SM20

8V↑+1A↑+1D↓

8Video + 1Audio + 1ПД

SFO-8V-1Abi-3Dbi-SM20

8V↑+1A↑↓+3D↑↓

8Video + 1Audio duplex + 3ПД duplex

SFO-8Vbi-8Abi-SM20

8V↑↓+8A↑↓

8Video + 1Audio duplex

SFO-16V-SM20

16V↑

16Video

SFO-16V-1D-SM20

16V↑+1D↓

16Video + 1ПД

SFO-16V-1Abi-3Dbi-SM20

16V↑+1A↑↓+3D↑↓

16Video + 1Audio duplex + 3ПД duplex

SFO-24V-SM20

24V↑

24Video

SFO-24V-1D-SM20

24V↑+1D↓

24Video + 1ПД

SFO-32V-SM20

32V↑

32Video

SFO-32V-1D-SM20

32V↑+1D↓

32Video + 1ПД

SFO-64V-SM20

64V↑

64Video

SFO-64V-1D-SM20

64V↑+1D↓

64Video + 1ПД