VC-1 Encoder Installation and Operation
Up to three VC-1 encoder boards may be housed in the 1RU frame and power supply. Connect the 25 ft. control cable between the appropriate card slot on the chassis, and the remote control panel, or PC (see VC-1 Windows Software), and apply power to the chassis. Control panel power is supplied via the control cable.
Connect program video to the “PGM IN” BNC. “PGM OUT 1” is equipped with a failsafe relay, which will connect the input to the output in the event of power failure. This output should feed the on-air link. “PGM OUT 2” is not bypassed and may be used for a monitor feed if required.
The control readout has a LINE row and a PRST (preset) row. The LINE row indicates the content rating on the outgoing program. The PRST row indicates the rating that has been preset from the control panel. On power up, the control panel will indicate PASS THRU in the LINE row and NO DATA in the PRST row. The PASS THRU function allows data previously inserted to pass through the VC-1. Whether control is via the remote panel or a PC, the VC-1 will strip and overwrite any existing XDS data once a rating has been inserted.
Any rating may be pre-selected by depressing the appropriate pushbutton. The button will illuminate and the content rating will appear in the PRST row of the readout. Depressing the TAKE pushbutton will transfer the rating to LINE, and the rating data will be inserted in the program output. The pushbutton will extinguish and NO DATA will appear in the PRST row. PASS THRU may also be pre-selected by depressing the PASS button, and taken to air by depressing the TAKE button. Should an incorrect rating be pre-selected:
1) For U.S. Rating System, depress CANCEL button and re-enter correct rating.
2) For Canadian Rating System, any rating may be overridden by entering another rating.
The VC-1 is equipped with three GPI functions:
1) GPI 1 requires a momentary contact closure. This closure will initiate the TAKE function. Whatever rating is in PRST will go to LINE.
2) GPI 2 requires a latching contact. When held low it will automatically put the VC-1 into the PASS THRU mode regardless of what is presently on LINE and PRST. When this GPI is allowed to go high, the rating selected in PRST will go to LINE.
3) GPI 3 also requires a latching contact. When held low it will automatically put the VC-1 into the PASS THRU mode regardless of what is presently on LINE and PRST. When this GPI is allowed to go high, the rating will revert to whatever was previously on LINE
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