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| Home | About Vortex | Product Catalogue | Spec Sheets | How to Buy | Contact Us |
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Vortex Communications manufactures and supplies video and audio equipment to broadcasters and system builders worldwide from its base in the UK. You can click on any of the coloured triangles below for specific product areas. |
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The VX-2004 and VX-2005 Programme Fail Detectors These Eurocard modules designed to monitor video and audio signal continuity and provide alarm outputs in the event of signal loss. When used in conjunction with the VX-4026 relay modules or BCU-300 Broadcast Changeover Unit, programme feeds can be re-routed and backup procedures initiated. |
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The VX-2004 offers one or two channels of audio monitoring. The VX-2005 also offers one or two channels of monitoring, which may be factory configured for audio, video or one channel of each. The detectors operate by measuring audio level or the level of video syncs, starting a fail timer if the signal level exceeds chosen parameters. If the timer trips before the signal returns to an acceptable level, then an alarm is signaled. If the signal returns to an acceptable level, the restore timer is started, causing the alarm to be terminated if the signal remains acceptable for the duration of the restore timer's run. This combination of controls avoids unnecessary alarms and ensures a good signal is present before canceling the alarm. For more details on the VX-2004 and VX-2005 Programme Fail Detectors Click Here... |
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VX-4026 universal relay switching Eurocards These Eurocards are configurable, programmable modules suitable for routing broadcast video, audio and control signals. With a copper path from the input connector to the output, the cards may safely be used in the broadcast chain and frequently form part of automatic transmission backup systems. High quality DPDT sealed relays with Ag/Au clad contacts (conforming to FCC Part 68) are used to ensure noise-free fast changeover between programme signals. |
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Programmable logic arrays (PALs) provide each relay with its control signal to operate or release. The VX-4026 is designed so that these signals are derived from logical combinations of the control inputs and status signals from the relays themselves. For more details on the VX-4026 Universal Configurable Relay Matrix Click Here... |
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| The BCU-300 Broadcast Changeover Systems
The BCU-300 system provides a comprehensive solution to programme circuit backup for both video and audio. To ensure continuity of transmission, signals are generally distributed via 2 (or more) separate paths to the transmitter. The BCU-300 monitors these signal paths and selects between them using programmable array logic. The comprehensive programming capabilities of the BCU-300 can be customised to particular applications, and special hardware configurations can be supplied to order. The system also lends itself to audio transmission circuits with ISDN backup, and can control TA and codec to ensure minimum use of the dial-up backup circuit. |
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For more details on the BCU-300 Broadcast Changeover unit Click Here.... |
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