By Elina Shatkin, September 8, 2004
JSAT, the largest satellite operator in Asia, has expanded its video distribution capacity, supported by a complete set of Snell & Wilcox IQ Modular intelligent infrastructure products for conversion, processing, distribution, and encoding. JSAT has also acquired a Snell & Wilcox RollCall control and monitoring solution for the system.
With Snell & Wilcox's system, program content including embedded audio from the satellite or SDI signal undergoes frame synchronization and is fed to a master switcher for program selection and transmission. Transmitted programs can be monitored when composite video and audio signals received from the satellite downlink are converted to SDI and fed to multi-viewing equipment.
The IQ Modular range offers a wide choice of modules and enclosures, with customizable control interfaces that are designed to support the broadest array of activities while still maintaining ease of use and control
. All essential information about any module - its status, setting, menu structure, configuration details, and PC window - is held on the card itself, for instant access by the central control system. This system integration allows users to configure video, audio, digital, analog, SD, and HD functions all in the same box that takes up just 16 modules per 3-RU enclosure.
RollCall is a PC-based application that enables remote control
functionality, monitoring of status and error condition, and gathering and viewing of error and status information reported from all equipment present on the RollCall network.
The key IQ Modular System components being used by JSAT include:
- Module IQDAFS -- ensures that SDI signals with embedded audio will be frame-synchronized ready for transmission;
- Module IQBAAID -- enables SDI signals to be reliably embedded with analog audio tracks ready for transmission;
- Module IQDAMDA - allows distributed analog composite video to be converted into SDI signals and frame-synchronized, ready for transmission.
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