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Easysound Stand-alone User Manual
Appendix 1
Appendix 1
Product Specification
SDI Inputs and Outputs
The Easysound Standalone’s SDI inputs accept serial digital video to EBU
(Tech. 3267-E) and SMPTE 259M standards, clocked at 270MHz, through
screened BNC connectors. There is a Return Loss greater than 15dB, over the
range 5MHz to 270MHz. Each input circuit is provided with automatic
adaptive equalisation circuitry suitable for cable lengths of up to 250 metres
(typical for Belden 8281 or equivalent coaxial cable).
Both SDI outputs are to the same data structure and physical standard as the
inputs and provide output amplitudes of 800mV (± 10%). Output circuits will
provide a signal whose transitions have a rise-time of between 0.4 and 1.2
nanoseconds. Each output is also fully equalised and regenerated.
Analogue Reference Video Input
Wherever possible, Easysound Standalone should be configured so that
reference timing for synchronisation is taken from an analogue reference
source to ensure uninterrupted output in the absence of a background signal.
Analogue signals such as PAL (625), NTSC (525), or component video with
embedded sync are all suitable.
Power Requirements
Easysound Standalone accepts power from a 90-132V or 180-264V, 60Hz or
50Hz, AC mains supply. The mains supply input fuse is a T2A (2 Amp Antisurge) and should always be replaced with a fuse of the same rating.
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