DTA-2175

HD-SDI/ASI Input and Output with Relay Bypass for PCIe

A general-purpose HD-SDI input and output, both ASI capable. A relay automatically connects input port to output port upon software- or hardware failures, enabling highly-available system configurations without requiring a failover switch.

Key Characteristics

Ports	1x HD-SDI/ASI input 1x HD-SDI/ASI output
Features	Relay bypass DekTec Matrix API^® 2.0 10-bit full frame support Audio/video/anc extraction Audio/video/anc insertion Scaling: 1/4, 1/16

Hardware

Connectors	2x 75-Ω BNC
Cable length	ASI - 375m SD-SDI - 375m HD-SDI - 210m
PCI Express	Low-profile PCIe gen2 x1

Standards

Link	SD-SDI - SMPTE 259M HD-SDI - SMPTE 292M
Video formats	525i, 625i, 720p, 1080i All common formats supported
DVB-ASI	EN50083-9 (coax) 0 to 214 Mbps

PC Support

OS	Windows 10, 11 Windows Server 16, 19, 22 Linux ≥2.6.18, 3.x, 4.x, 5.x
Processor	Core i7 Or equivalent AMD CPU

Software

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

SDK Downloads

WinSDK (DTAPI)	C++ API for developing custom applications
DirectShow SDK	DirectShow capture filters for DekTec SDI devices

Documentation

DTA-2175
Leaflet

Comparison of DTA-2175 with other ASI/SDI interface cards

Pricing

DTA-2175-SLP	€	893	Stock: 25+
HD-SDI/ASI input and output with relay bypass for PCIe with StreamXpert Lite and StreamXpress player software.

DTA-2175-SXP	€	2.064	Stock: 25+
HD-SDI/ASI input and output with relay bypass for PCIe with StreamXpert analyzer and StreamXpress player software.

DTA-2175-SY-SXP	€	2.919	Stock: 25+
HD-SDI/ASI input and output with relay bypass for PCIe with SdEye and StreamXpert analyzer and StreamXpress player software.

DTA-2175-VR-SY-SXP	€	3.833	Stock: 25+
HD-SDI/ASI input and output with relay bypass for PCIe with VF-REC stream recorder, SdEye and StreamXpert analyzer and StreamXpress player software.

Prices exclude applicable sales tax, shipping charges and customs duties. Quantity discounts may be available, please request a quotation.

Features

General-purpose input and output port that can be independently programmed to operate in HD-SDI, SD-SDI or DVB-ASI mode.
Relay automatically connects input to output upon application crash or PC power failure.
DekTec Matrix API^® 2.0 provides convenient access to video, audio and ANC-data.

Applications

Low-latency extraction and/or insertion of video-, audio- or ANC data, e.g. logo/subtitle inserter, audio embedder, etc.
HD-SDI (or ASI) playout and/or capture;
HD-SDI-in, ASI-out software encoder.
Analyze and/or monitor SDI with SdEye;
Analyze Transport Streams with StreamXpert.

Block Diagram

SDI and ASI input flows from port 1 through equalizer, deserializer, processing (encoding in a format suitable for transmission to PC) and DekTec's highly optimized DMA controller. The output flow to port 2 is very similar, but in the other direction.

If the PC power fails, or the watchdog times out, the relay falls back to its inactive position, connecting the input directly to the output.

High Availability with the DTA-2175

The relay bypass on the DTA-2175 enables a simple though effective way to create a highly-available HD-SDI (or ASI) generator as shown in the diagram below.

Creating highly-available streams with the DTA-2175

Both PCs run the same application. Normally, HD-SDI output originates from PC1. If PC1 fails (software crash or power failure), the relay will automatically fail over to PC2, bypassing PC1.

DekTec Matrix API^® 2.0

The Matrix-API framework decodes incoming SDI data into pixels (in a programmable format), audio samples and ANC data structures. When a new frame has been received, the framework calls a user-supplied "frame-processor callback" for processing of the data. The user callback can create output video, audio and ANC data. which is encoded by the framework into SDI frames.

Synchronization of multiple input streams is straightforward: The video/audio/anc data of all SDI frames supplied to the callback function have the same arrival time by definition. Past frames can be accessed by an integer frame index. The framework ensures that if frames from different input ports have the same frame index, they have entered the system at the same time instance.

	DTA-2172 – Dual 3G-SDI/ASI Ports for PCIe Two bi-directional 3G-SDI/ASI ports and a genlock input, without relay bypass.
	DTA-2174 – Quad 3G-SDI/ASI Ports for PCIe Four bi-directional 3G-SDI/ASI ports and a genlock input.
	DTA-2179 – Twelve 3G-SDI/ASI Ports for PCIe Twelve bi-directional 3G-SDI/ASI ports and a genlock input.
	DTA-2195 – 12G-SDI Input and Output with HDMI 2.0 for PCIe 12G-SDI input and output port with HDMI 2.0 monitoring output and a genlock input; no relay bypass.