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DTA-2178-ASI | PCIe

Octal ASI ports for PCIe

Eight bi-directional ASI ports on a low-profile PCIe card at a price of about €100 per channel. Each port is configurable from software as input or output.

Ordering Information

  • DTA-2178-ASI - Octal ASI ports for PCIe.
  • DTA-2178-ASI-SLP - Octal ASI ports for PCIe with StreamXpert Lite and StreamXpress player software.
  • DTA-2178-ASI-SXP - Octal ASI ports for PCIe with StreamXpert analyzer and StreamXpress player software.

Availability: In stock

1 014,-€

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1 014,-€




  • All eight ASI ports operate independently.
  • Ideal for applications with a high port count, like multiplexers, multi-channel playout etc.
  • DekTec's SDKs, including DTAPI and DTAPI-TS, help you create real-time applications that receive and or transmit ASI transport streams.


  • Applications with many ASI I/Os, e.g.:
    • Transport-stream multiplexer;
    • Compliance recording;
    • Multi-channel receiver, monitor, playout;
    • Gateway to or from IP.
  • Your custom PC application or product that requires a high ASI port count.

Block Diagram

The DTA-2178-ASI features eight independent transmit/receive channels, each consisting of a cable equalizer, ASI receiver, ASI encoder/transmitter, channel logic, a FIFO, a DMA controller and a PCIe interface.

Key Characteristics

Ports 8x ASI in/out
Features Arrival timestamping
Inverted ASI
Flexible receive modes


Connectors 9x 75-Ω micro BNC

1 port unused

Cable length 350m
PCI Express Low-profile PCIe gen3 x8

Can operate in a PCIe gen2 slot


DVB-ASI EN50083-9 (coax)
0 to 214 Mbps

PC Support

Linux ≥2.6.31, 3.x, 4.x, 5.x
Windows 7, 8, 10, 11
Server 12, 16, 19
Processor Core i5 minimum
Core i7 recommended

Or equivalent AMD CPUs


StreamXpress Playout transport-stream files
SpRcApi StreamXpress remote-control API for automated playout
StreamXpert Our industry-standard transport-stream analyzer
VF-REC SDI/TS recorder with looping, scheduling and more
DekTec SDKs Create your own application


  • DTA-2178-ASI Leaflet    

Dektec models are most often differentiated by the sufix e.g. SD, SXP etc., where suffix specifies the SW licence

  • SP = Stream Player (allows you to play/modulate transport stream files, so this makes sence for devices with Output interface)
  • SXP = Stream Xpert (this is MPEG TS ANALYZER, what makes sence for Input devices)
  • SLP = Stream Xper Lite (very limited alternative of SXP, de facto allowing mainly capturing MPEG TS, again makes sence for Input devices)
  • RX = RFXpert RF signal analysys
  • SY = SD Eye (video analyzer)
  • J = Jitter
  • DGL = Dongle license for non Dektec devices
Meaning of abreviations used in beginning of Dektec model names
  • DTA = Dektec adapter (typically PCI, PCI-e)
  • DTU = Dektec USB device both USB-2 and USB-3
  • DTE = Dektec Ethernet standalone networked device
  • DTC = Dektec software license



Manufacturer MAINDATA
Form Factor PCI


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