Technical Specification
Input (Analog Video)
The input is capable of accepting a wide range of analogue video input voltage
levels and is also capable of accepting various color standards. Requirements for
the video input signal are defined in the following table.
Table B.33 External Sync Input (Analog Video) Specification
Item Specification
Nominal Video level:
(AC Coupled)
0.5 to 2.0 Volts peak-to-peak
Applicable Video
Standards:
PAL, NTSC
Input Video Interfaces: Composite (CVBS)
Chroma Filter Always present
Input (10 MHz Reference)
A 10 MHz input can be applied via the BNC connector which may be sinusoidal or
square in shape. The required characteristics for the input signal are defined in the
following table.
Table B.34 External Sync Input (10 MHz Reference) Specification
Item Specification
Input Level (AC Coupled) 1 Volt peak-to-peak
Input waveform: Sinusoidal or Square
B.3.17 GPI Option Card
The GPI option card provides means for GPI triggered splicing and alarm or fail
relay.
Table B.35 GPI Specification
Item Specification
GPI/Alarm
Safety Status SELV
Connector Designation GPI/ALARM
Connector Type 25-way D-type female
GPI Input 1: Open-circuit
0: Pulled low to between 0.8 V and 0.0 V
Limit over-voltage, under-voltage and excess current
Input function
Application-specific, tailored by software. Contacts are debounced to eliminate
false transitions due to contact bounce in external relays
The 9-way D-type interface is not supported in this release.
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