IF-619 board . The IF-619 board receives each signal input to the rear panel and distributes it to other boards through the MB-714 board. . The IF-619 board converts an SDI IN or SBX IN signal from serial to parallel. . The IF-619 board converts a signal from parallel to serial so as to produce an SDI OUT or SBX OUT signal. . The IF-619 board has the send/receive circuit of Ethernet and the buffer circuit of an input reference signal.
IO-163 board (BKMA-1010/1020/1030) . The IO-163 board outputs a sync signal in the time slot corresponding to the inserted slot to the SBX OUT signal. . The IO-163 board outputs the audio signal converted from serial to parallel in the IF-619 board to the APR-29 board. The IO-163 board adds the command signal for RAID to the audio signal converted into an SBX signal in the APR-29 board and outputs the audio signal to an SBX (AUDIO) OUT signal. The IO-163 board compresses the video signal converted from serial to parallel in the IF-619 board by MPEG-2 4:2:2Profile@ML and converts the video signal into an SBX signal. After conversion, the IO163 board adds the command signal for RAID to the video signal and outputs the video signal to an SBX (AUDIO) OUT signal. (BKMA-1010/1020) . The IO-163 board receives only the data in the time slot of the inserted slot from an SBX IN signal and outputs the received SBX IN audio signal to the APR-29 board. The IO-163 board inputs the audio signal converted in the APR-29 board. The IO-163 board directly decodes an SBX IN video signal and converts it into a video signal. The IO163 board adds an audio signal to the converted signal and outputs it to the IF-619 board. (BKMA1010/1030)
APR-29 board (BKMA-1010/1020/1030; Sub-board of IO-163 board) . The APR-29 board extracts the video and audio signals input from the IO-163 board and converts them into an SBX signal. The APR-29 board outputs the converted signal to the IO-163 board. (BKMA1010/1020) . The APR-29 board converts the SBX audio signal input from the IO-163 board into an audio signal. The APR-29 board outputs the converted signal to the IO-163 board. (BKMA-1010/1030)
CPU-248 board (BKMA-1010/1020/1030; Sub-board of IO-163 board) . The CPU-248 board performs the video and audio process control of the IO-163 and APR-29 boards, the input/output control of an SBX signal, and the system management of BKMA-1010/1020/1030. . The CPU-248 board detects the RAID status during REC and PB operations. . The CPU-248 board communicates with the CPU-234 board as required. . The CPU-248 board performs the communication processing of RS-422A and VS-BUS. . The CPU-248 board uses flash memory as program memory and can download the firmware through Ethernet of the MAV-1000.
