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SD-S21

Product Name: SDI 2*1 switcher
Module:SD-S21
Features:※Switch 2SDI signalinputto 1 SDIsignal output.
※Select the input source by one key.
※Transmission without loss of signal.
※ Support DC 5V-12V wide voltage input.
※ Low power consumption,low demand for power adapter.
※ Input status LED indicate the using status of the switcher.

  • Connection and Size Picture
  • Specification
  • Software Function
  • This SDI switcher can switch 2 SDI signal to 1 SDI output. It is equipped with dedicated high-performance SDI amplification chip to ensure long-distance and stable transmission.It can save your trouble of plugging cable repeatedly when connect the camera equipments in different positions to the display device.

    It offers solutions for noise space and security concerns,data center control,information distribution,remote monitoring,conference room presentation,digital and corporate training environments.


    The SDI is serial digital interface.A related standard,known as HD-SDI,is a broadcast level high-definition serial digital input and output interface,where HD is high-definition signal.As SDI interface could not transmit compressed digital signal directly,it can access to the SDI system only bybeing decompressed and output through SDI interface after replaying the compression signal recorded by DVR,hard disk and other devices.Iterative compression and decompression will certainly lead to poorer image quality and increased delay.For that reason, various DVR and non-linear editing systems with different formats have defined its interface for transmit compressed digital signal directly.

    HD-SDI has been widely used in non-linearpost production, radio station and other fields.It is standardized in SMPTE 292M,this provides a nominal data rate of 1.485 Gbit/s or 1.485/1.001Gbit/s. SMPTE 292M has defined the data format,channel coding,signal specifications of coaxial cable interface,connector and cable type and optical interface.HD-SDI interface adopts coaxial cable and takes the BNC interface as the cable standard,its effect distanceup to 100m.


    1.Use the SDI cable to connect the output interface of the SDI video camera to the IN interface of the switcher.

    2.Use the SDI cable to connect the OUT interface of the switcher to the input interface of the SDI display device.

    3.Connect the Power Interface of the switcher to the DC power adapter, insert the power adapter plug in the socket.

    Remark: Cable tested with Belden 1694A. Operating distances may vary if used with another type of cable.




  • SMPTEStandard.......................................................................425M Level A&B,424M,292M,259 M-C
    SDI Transmission Rate....................................................270Mb/s(SD)、1.485Gb/s(HD)、2.97Gb/s(3G)

    Input/Output Resolution........................................................ SD:480i@60, 576i@50 HD:720p@50/60,

    ........................................................................080i@50/603G:1080p@24/25/29.97/30/50/59.94/60

    SDI Output Resolution...........................................................................Depends on Input Resolution

    Input Interface..............................................................................................2xBNC(SD/HD/3G-SDI)

    Output Interface......................................................................................1xBNC(SD/HD/3G-SDI)SDI

    Transmission Distance...............................................................................Input + output up to 180m

    Input Voltage...............................................................................................................DC5V―12V

    Maximum Power Consumption....................................................................................................2W

    ESD Protection Human Body Model……….........................................................±8kV(Air-gap Discharge)

    ................................................................................................................±4kV(Contact Discharge)

    Operating Temperature Range.........................................................................................-10~+55℃

    Storage Temperature Range............................................................................................-20~+60℃

    Operating Humidity Range..................................................................10~90%RH(No Condensation)

    Storage Humidity Range.......................................................................5~95%RH(No Condensation)

    Shell Dimension.................................................................................................125*66.5*22(mm)

    Weight.................................................................................................................................230g


  • AYS-S21英文说明书

    AYS-S21中文说明书