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IT interface box
16 The IT interface box combines the output from the head encoders and the lens zoom and focus
encoders and provides positional data to a virtual set computer. It is connected to a virtual studio systems via
RS-232 (26) or RS-422 (27) connectors.
17 A pushbutton (23) provides a ‘RESET’ command to the virtual studio system for positional reference
purposes.
18 Mains power (100-120 Vac/200-240 Vac, 0.15A, 50-60 Hz) is supplied to the IT interface box via an IEC
connector (22).
19 A BNC connector on the IT interface box is for video synchronization (24) and is connected to the
composite ‘black’ output from the camera. An LED (25) adjacent to the connector shows red when out of
synchronization and green when synchronized.
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