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Link MDA-55 1 x 4 3G/HD/SD SDI or ASI Distribution Amplifier
    Questions? Ask a Markertek Expert:
    800-522-2025 Email

    Link MDA-55 1 x 4 3G/HD/SD SDI or ASI Distribution Amplifier

    Manufacturer: Link Electronics, Inc

    Item #: LEI-MDA-55   •   MFG #: MDA-55


    List Price:$495.00
    Our Price:$459.99

    free ship
    Availability: Direct Ship From Manufacturer
    Item ships directly from the manufacturer. Normal delivery time is 2-7 business days and is subject to manufacturer availability. Need it sooner? Call 800-522-2025, or email Customer Service for expedited delivery options.
    • 2 - 7 Day Normal Delivery Time - Faster Shipping Options at Checkout or Call Us.



    The MDA-55 is a 3G/HD/SD SDI & ASI distribution amplifier that combines exceptional performance with both value and compact size. The input signal can be 143Mb/s, 177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s, 1.485Gb/s or 2.97Gb/s standards. It restores the incoming signal to its proper amplitude. The signal is reshaped with automatic equalization and DC restoration. The signal output level is 800mV p-p, and re-clocked.

    The MDA-55 includes an automatic input cable compensation circuit commonly referred to as an adaptive cable equalizer. It's maximum equalized
    cable length; for SD up to 750 feet at 270Mb/s, for HD up to 250 feet at 1.485Gb/s, and for 3G up to 150 feet at 2.97Gb/s.

    The MDA-55 includes a crystal referenced re-clocking circuit that senses three data rates: 270Mb/s, 1.484Gb/s, and 2.97Gb/s. If the data rate is one of these three rates, the re-clocker will automatically activate and reduce high frequency jitter. If the incoming data rate is not any of the above, then the MDA-55 re-clocker will go into the bypass mode. If the data rate is 143 Mb/s or 177 Mb/s, the MDA-55 output rise times are slowed down to comply with the SMPTE 259 specification.

    The default for the MDA-55 is the faster SMPTE 292 HD rise time.

    The MDA-55 has four outputs are provided on the end panel, as well as, a detachable DC power cable. These are four outputs that follow whatever the input is. There are three LED's, on the end opposite of the BNC connectors, indicating re-clocker locked (red-unlocked or green-locked), data rate (blue-3G, green-HD, or yellow-SD), and power on (green).

    The MDA-55 can be used in places where space is a premium and at the same time get excellent performance with lower cost. It is designed for applications that require equalization, re-clocking and distribution for 3G/HD/SD SDI as per SMPTE 259 (SD), SMPTE 292 (HD), and SMPTE 424(3G). It carries the Link's standard 10-year warranty including parts and labor.

    Made in the USA! 10-Year Warranty

    • Features

      • DC Powered, Portable
      • SMPTE 259M, 344M, 292M, & 424M
      • Wall Adapter Power Supply Included
      • 1 x 4 3G/HD/SD SDI or ASI DA
      • Data Rate Indication
      • Re-clocker Locked Indication
      • Automatic Equalization and Re-clocking
      • Compact Size
    • Specifications

      • Number of Inputs: 1
      • Connectors: BNC
      • Impedance: 75 Ohms
      • Signal Level: 800mV
      • Return Loss: 22 db
      • Composite: 143Mb/s
      • Component: 177Mb/s, 270Mb/s, 360Mb/s, 540Mb/s,1.485Gb/s or 2.97Gb/s
      • Input Cable Length Equalization:
      • SD: 750 Feet @ 270Mb/s
      • HD: 250 Feet @ 1.485Gb/s
      • 3G: 150 Feet @ 2.97Gb/s
      • Number of Outputs: 4
      • Connectors: BNC
      • Impedance: 75 Ohms
      • Signal Level: .800mV
      • Overshoot: <8% of Amplitude
      • Jitter Improvement: approximately 10%
      • Propagation Delay:
      • 3G: 0.007 ?s
      • HD: 0.013 ?s
      • SD: 0.037 ?s
      • Additive Jitter:
      • SD: 30 Ps {p-p} (typical)
      • 3G/HD: 10 Ps {p-p} (typical)
      • Lock Detect: Red/Green LED
      • 3G/HD/SD: Blue/Green/Yellow LED
      • DC Power: Green LED
      • Temperature: 0Ý to 50Ý C Ambient
      • Humidity: 10% to 90% non-condensing
      • Power: 5 VDC @ 4.2 Watts
      • Mechanical:
      • Height: 0.75 Inch
      • Width: 4.0 Inches
      • Depth: 2.0 Inches
      • Weight: 4 Ounces

    Add Accessories for your MDA-55: