SDI & DVB-ASI

Fiber Optic Transport System

 
 

Overview

 
The Serial Digital Interface (SDI), standardized in ITU-R BT.656 and SMPTE 259M, is a digital video interface used for broadcast-grade video. For standard definition applications, as defined by SMPTE 259M, the possible bit rates are 270 Mbps, 360 Mbps, 143 Mbps, and 177 Mbps. 270 Mbps is by far the most commonly used; though the 360 Mbps interface (used for widescreen standard definition) is sometimes encountered. The 143 and 177 Mbps interfaces were intended for transmission of composite-encoded (NTSC or PAL) video digitally, and are now considered obsolete.

DVB-ASI (Digital Video Broadcasting — Asynchronous Serial Interface) is frequently used in satellite transmission, interfacility links, and telephony communications. DVB-ASI is designed to transport MPEG-2 video streams, primarily for television applications, at up to 270 Mbps. The electrical implementation of DVB-ASI is similar to serial digital interface (SDI). DVB-ASI is carried at a 270 Mbps line rate consistent with the SDI clock described in SMPTE 259M.
 

Optiva Series - Professional Media Transport

 

SDI & DVB-ASI Video Over Fiber

 
Optiva® SMPTE 259M and DVB-ASI compliant transmission links are the perfect solution for transmitting the full range of SMPTE resolutions over long or short distances with a single wavelength. This single fiber, single wavelength solution is perfect for any professional broadcast application, whether in a fixed Production facility or mobile O/B facility. As a consequence of fiber optic transport, video signals are sent without compression, and without any loss of fidelity. Transmission without amplification or regeneration up to 70 km is achievable.

Another unique capability of this system is that it utilizes Optiva's patent-pending Daisy Chain™ Technology. This gives system designers the flexibility to add additional Optiva insert cards, for the purpose of transporting additional video, audio, and/or data signals over the same fiber.


 

System Design

 
Switching and multicasting the various configurations of OTP-1SD and OTP-1AS (as well as all other Optiva signal cards) over the OptiLinx® Switching Platform is straightforward, making this the perfect solution for reconfigurable systems with many sources of broadcast video, and many downstream destinations in the broadcast workflow process.

Optiva® insert cards are supported by both 19" rack mount and compact tabletop or wall mountable enclosures. The 3RU 19ā€¯ rack mount enclosure (Model: OT-CC-16-100) can support up to 16 insert cards plus dual-redundant hot-swappable power supplies (Model: OT-CC-16-100-RPS). Also available in the 19" rackmount form factor is the 4-slot (Model: OT-CC-4-1U) which houses 4 insert cards in 1RU of rack space. The compact one slot (Model: OT-DTCR-1) and two slot (Model: OT-DTCR-2) enclosures are useful for remotely deployed signals. The desktop enclosures require an external power supply (Model: PS-9012).

 
SDI & DVB-ASI View
SDI & DVB-ASI Fiber Optic Systems
 
 
 
 

Features

  • SMPTE 259M and DVB-ASI Compliant
  • Optiva® Daisy-Chain Technology
  • Singlemode and multimode fiber options
  • Uses all-digital processing for crystal clear picture with no compression
  • Real-time video transmission for exceptional quality and resolution
  • No EMI, RFI, or ground loops
  • Receiver contains SMPTE compliant cable driver and reclocker
  • Transmitter contains SMPTE compliant cable driver, adaptive cable equalizer, and reclocker
  • Compatible with Optiva MDM-7000 Series for CWDM multiplexing
 

Applications

  • Remote OB Van/Truck Video Feeds
  • Broadcast Studio Camera Feeds
  • SD Broadcast Routing (requires Optilinx Optical Switch)
  • Long-haul Signal Transport
  • Lecture Hall Projector Connectivity
  • Medical/Surgical Room Broadcast

 
 
 
 

Model

Optiva® SDI
Optiva® Video - SDI Video Transmission
PDF
 

Model

OTS-1SD
Optiva® Standard, 1 SDI 270 Mbps
PDF
 

Model

OTS-1SD1ETR
Optiva® Standard, 1 SDI 270 Mbps & 10/100 Ethernet
PDF
 

Model

OTS-1SD2A
Optiva® Standard, 1 SDI 270 Mbps & 2 Analog Audio
PDF
 

Model

OTS-1SD2DA
Optiva® Standard, 1 SDI 270 Mbps & 2 AES/EBU
PDF
 

Model

OTS-1SD2DA1DTR
Optiva® Standard, 1 SDI 270 Mbps, 2 AES/EBU & 1 Data
PDF
 

Model

OTS-1SD2DTR
Optiva® Standard, 1 SDI 270 Mbps & 2 Data
PDF
 

Model

OTS-3SD
Optiva® Standard, 3 SDI 270 Mbps
PDF
 

Model

OTS-6SD
Optiva® Standard, 6 SDI 270 Mbps
PDF