User`s guide

Glossary
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P2
P2 is the Panasonic name for the Sony protocol (RS-422).
port
A point at which an external device connects to the SGI Media Server. Video ports, used
by video input and output devices. MFCODEC video ports are named MFCODEC_n (for
example, MFCODEC_2). The term media port refers to either a video or a deck control
port.
pre-roll
During recording, both source and recording machines can be rewound, generally three
frames, so that the beginning of the recording starts when both machines are running at
the correct speed. As a result, edits are more frame-accurate.
RS-422
Is the Sony protocol for communicating with video devices.
SMPTE 259M
A broadcast digital video signal standard. All high end digital video formats as well as
many peripheral devices have adopted this standard. 259M is a universal standard
permitting long cable runs regardless of the size of the facility.
Sony
A media company that uses its protocol, a standard by default, to control media
machines, such as VTRs (RS-422).
unit
A software mechanism that functions like a logical video tape recorder transport and is
capable of loading, cueing, playing, and recording digital clips. The unit manages a
media port, which may be shared with another unit.
A unit may also called a logical unit.
VDCP
See Video Disk Communications Protocol.
Video Disk Communications Protocol (VDCP)
RS-422-based protocol used by the Harris Automation (formerly Louth) ADC
series.VDCP is the basis for control protocols for other manufacturers (such as Alamar)