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Main / PROFLEX modular system / Description

Quite often a TV center or a studio evolves into a collection of equipment of different brands, generations and technologies. These varieties make the task of inter-studio cooperation quite difficult, even an intra-studio material flow could be affected. PROFITT's modular system is designed to overcome these interconnectivity problems and fits into almost any studio environment. A "Lego"-like approach used in the “PROFLEX” system allows it's users to easily configure input/output signals, functions, by simply changing the modules in a device.

The system is built around the Rec-601 compliant 4:2:2 internal signal bus, the unified serial bus for audio with the standard signal processing, the common control bus. Each module consists of two boards - the frontal (F) and the rear (R). A frontal board has all the circuitry to comprise the self-contained functional unit (for example: a noise reductor or a PAL/SECAM transcoder) while the rear board is just an interface adaptor providing the desired connectivity (SDI , PAL , SECAM , YUV , RGB, etc.). A rack-wide backplane connects all the boards and provides the power supply.

It is possible to avoid the costly SDI connection between modules because of the digital 4:2:2 internal bus. System's flexibility allows to fit any functional (frontal) module with any combination of I/O signals (SDI and PAL, YUV and PAL, etc.). The internal bus make it possible to combine several frontal boards (F) in a funtional group with a common rear board (R). Such a group could be, for example, a decoder (F) + noise reducer (F) + synchronizer (F) + D1 output (R).

A "PROFLEX" group can handle various signals, for example, a group of a noise reducer and a video synchronizer deals with a satellite input signal, a timebase corrector processes a VTR signal, an audio delay line follows the operational parameters of the video synchronizer and so on. Each group may be synchronized either from a local signal or from a global synch signal. “PROFLEX” modules allow users to build all sorts of signal processing - audio and video, in both digital and/or analog domain.

All "PROFLEX" modules are equipped with a CPU that keeps all operational parameters and provide local and remote control capability. Being put into any slot in a system a module automatically updates it's remote control configuration. Users do not need to ask "PROFITT"'s help to add any new modules or to reconfigure their systems because it is plain easy. Those who do not need a remote control capabilities - do not pay any extra prices, however, if they decide to implment it - an unexpensive additional hardware allows to do it without any system reconfiguration.

All “PROFLEX” modules fit into a 19"-rack that is available in two from factors: PFR-1U and PFR-3U. The PFR-1U rack is one unit heigh with one built-in power supply. The PFR-3U rack, three units high, accepts one or two power supplies, the second power supply unit then works as a hot-standby. The two separate 220V mains cords allow to use two separate power feeds - for higher degree of power loss protection. The PFR-1U rack accepts up to four modules, the PFR-3U - up to 15. Both types of racks are equipped with fans, all metal parts are grounded providing the electrical safety and EMC. A CPU that can be optionally fitted into a rack monitors the temperature and the power supply values. The PFR-1U and PFR-3U racks fit into 19" frame or may be used as desktop units.