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ASI Delay

  • VistaLINK® enabled

The 7780DLY-ASI is a complete hardware based solution that can delay a compressed stream on ASI for up to 16 seconds. As more providers are using different sources with various delays, like satellite, fiber and off air, they need to be able to match these streams by delaying them by multiple seconds in order to line up in time the different inputs.

Most broadcast equipment offers few millisecond of built in buffer, but in many cases it is not enough delay for stream matching.

The 7780DLY-ASI can delay a full ASI stream up to 213Mb/s. The delay is programmable and adjustable by 1ms increment from 0 to 16 seconds.

The 7780DLY-ASI fits in the 7700 series frame and offers signal input monitoring by sending SNMP traps to the industry leading VistaLINK® PRO.


  • 1 ASI input 100kb/s to 213Mb/s and 2 ASI outputs
  • Delay from few bytes to 16 seconds in 1ms increment
  • ASI input monitoring of:
    • Sync Byte error and Sync loss detection
    • Total Bitrate
    • Useful Bitrate
    • Null packet Bitrate
    • Continuity count error
    • List of active PIDs
  • Support 188 and 204 bytes packets (Autodetect)
  • Controlled by VistaLINK® PRO or Card Edge
  • Fully integrated with the industry leading Evertz VistaLINK® PRO NMS system
  • OSD (On Screen Display) on SDI output for status and configuration display
  • 7 programmable preset delays controllable by GPI and VistaLINK® PRO
  • Passive bypass for increased safety
  • Block DiagramBlock Diagram


    ASI Input/Output
    StandardDVB TR101 891, 270Mb/s
    Number of Inputs1
    Number of Outputs1 (with relay bypass)
    Bitrate100kb/s to 213Mb/s
    Serial Video Output (OSD)
    Number of Outputs1
    ConnectorBNC per IEC 61169-8 Annex A
    Signal Level800mV nominal
    DC Offset0V ±0.5V
    Rise and Fall Time200ps nominal (HD), 740ps nominal (SD)
    Overshoot< 10% of amplitude
    Return Loss> 15dB up to 1.5Gb/s (HD)
    Wide Band Jitter< 0.2UI
    Voltage+12V DC
    Power20 Watts
    EMI/RFIComplies with FCC Part 15, Class A, EU EMC Directive
    Number of Slots
    7700 frame mounting2
    7701 frame mounting1
    Standalone Enclosure
    Dimensions14" L x 4.5" W x 1.9" H
    (355mm L x 114mm W x 48mm H)
    WeightApprox. 1.5lbs. (0.7kg)

    Ordering Information

    7780DLY-ASIASI Delay
    Ordering Options
    NotesRear plate must be specified at time of order - eg: [model]+3RU
    Rear Plate Suffix
    +1RU1RU rear plate for use with 7701FR Multiframe
    +SAStandalone Enclosure Rear Plate
    +3RU3RU rear plate for use with 350FR, 7700FR-C or 7800FR Multiframes
    350FRPortable Multiframe which holds 7 single slot modules
    7700FR-C3RU Multiframe which holds 15 single slot modules
    7800FR3RU Multiframe which holds 15 single slot modules
    7701FR1RU Multiframe which holds 3 single slot modules
    S7701FR7700 Series Standalone Enclosure