SDI

(redirected from SD-SDI)
Also found in: Dictionary.

SDI

(library)

SDI

(programming)

SDI

(1) See software-defined infrastructure, Single Document Interface, Strategic Defense Initiative and Switched Digital International.

(2) (Serial Digital Interface) SDI is a unidirectional video interface. Standardized by SMPTE in the late 1980s, SDI has been the primary interface for transmitting uncompressed digital video signals. SDI will eventually be replaced by IP-based NDI, and the many cables used in broadcasting facilities will be replaced with an Ethernet topography. See NDI.

SDI uses a high grade of coaxial cable and a BNC connector with Teflon insulation. It also supports optical fibers with ST, SC and FC connectors. Following are the common formats transmitted over SDI. See ITU-R BT.601, BNC connector, fiber-optic connectors and serial interface.
SD-SDI                  Aspect  Transfer(Standard Definition)   Ratio   Rate
 Digitized NTSC (4FSC)    4:3    143 Mbps
 Digitized PAL (4FSC)     4:3    177 Mbps
 Component ITU-R BT.601   4:3    270 Mbps
 Component ITU-R BT.601  16:9    360 Mbps

 HD-SDI (High Definition)  See  HD-SDI.
 Component ITU-R BT.709  16:9  1,485 Mbps
 Dual-link (two cables)        2,970 Mbps

 3G-SDI (3 Gbps)
 One-cable version of HD-SDI   2,970 Mbps



Blackmagic SDI Capture Board
Two sockets are input, and two are output. At 4:2:2 color sampling, SDI uses one line for in or out. However, HD-SDI at 4:4:4 requires two lines. See chroma subsampling. (Image courtesy of Blackmagic Design Pty. Ltd, www.blackmagicdesign.com)
References in periodicals archive ?
Our products support OTN, SONET/SDH, PDH (DS3/E3, DS1/E1), data (Ethernet, packet, private line), SAN services (Fibre Channel, FICON, ESCON, Gigabit Ethernet, 10 Gigabit Ethernet) and video services (DVB-ASI, SD-SDI, HD-SDI, 3G-SDI).
quantity used by ak: total number of compressed or uncompressed connections (hd / sd-sdi) for the provision of temporary transmission of images and sound of at least 300 per annum and up to a further 400% of the total (+), and mtva kunigunda of these connections.
The video input is VGA and DVI-D with options for HDMI + S-video + composite (BNC) or audio input, 3G / HD / SD-SDI broad-cast grade input with speaker.
Like the Ace, the MGW D265 offers both HD-SDI and SD-SDI outputs via a single BNC connector, as well as an HDMI output with embedded audio.
The VS251-RC-SFP is a multi-function optical interface card that supports bit rates from 10Mbps to 1.5Gbps, which can be operated as a fibre transmitter, receiver, repeater or monitor for HD-SDI, SD-SDI, DVB-ASI and SMPTE-310 video.
The customer, which has a nationwide analogue and digital TV and radio network, has already ordered a national digital terrestrial TV (DTT) distribution network based on Net Insight's Nimbra platform for distribution of uncompressed and compressed video (HD-SDI, SD-SDI and ASI).
, control panel x, Y type with lcd indication in the buttons - 1, And control panel for the proposed matrix - 2, - modular system with the following modules: Analogue video distributor, Modular type - 2 pcs, Hd / sd-sdi video distributor, Modular type - 4 pcs, 3g / hd / sd-sdi aes audio memory module, 2 pcs.
Using the Ekinops 360 carrier-grade system, operators can simply increase capacity of their networks - CWDM, DWDM, Ethernet, ESCON, Fibre Channel, SONET/SDH, and uncompressed video (HD-SDI, SD-SDI, ASI).
The Testor APP is compatible with the greenMachine titan hardware and supports 12G, 3G, HD, SD-SDI formats.
Artel Video Systems , a provider to broadcast media of IP- and fiber-based media transport solutions, hastwo new members of its InfinityLink broadcast media transport platform: The ILC450 10G HD/SD-SDI, ASI IP Gateway & GigE Data Transport module; and the ILC410 SD-SDI or ASI Two-Channel Bidirectional IP Gateway.
Since SDI gained popularity in the 90s, it has evolved from SD-SDI at 270Mbps to the more recent 3G-SDI at 2.97Gbps -- a ten-fold increase from when it started.
In addition to SD-SDI, HD-SDI, 3G-SDI video input and output interfaces, IP-HE950 supports 12G-SDI (broadcast standard SMPTE 2082) to realize even greater video transmission speeds.