The eight inputs allow software switching between two GBR component sources or six composite or monochrome sources. All inputs are terminated at 75 ohms. Encoded composite video Monochrome, 1V p-p. The encoded output is available simultaneously with the GBR output. It occupies two slots.
Some devices have system pixel clocks which generate system pixel clock timing signals.
These signals are distributed to all other devices in a system via the SPC timing bus. This bus consists of SPC cables which connect to the PSPC timing ports on all devices. Additionally, some devices have PR timing ports which enable them to transfer any sized rectangular blocks of data. Refer to page 4-9 for instructions on how to configure this port. They are not listed here because ImageFlow users need not be concerned with these numbers, since Imageflow takes care of them automatically for you.