Grass Valley M-Series iVDR User Manual v.2.0.10 - Manual (Page 65)

20 April 2005 M-Series User Manual 65
Functional description
Functional description
The diagram illustrates how the four iVDR channels operate independently, but share
a common internal disk storage area. This gives all channels, two record channels for
recording media and two play channels for playing media, simultaneous random
access to the same media files. This means that you can play a clip that is still
recording on one of the record channels. Each channel handles one video track, two
audio tracks, and one timecode track.
Note that an E to E path is provided for monitoring purposes. When E to E mode is
enabled, the play channel video and audio outputs are switched to the corresponding
record channel inputs when the play channel is in stop mode or when no clip is loaded.
The following table describes play channel operation depending the E to E selection.
E to E Setting Play channel mode Play channel output
Disabled Play, FF, Rewind
Stop
Eject Show clip
Show clip
Show black
Enabled Play, FF, Rewind
Stop
Eject Show clip
Show input
a.
Show input
a.
a.
Output is black if no video input is connected.
PB/EE Switch Path
R1
Input
Circuit
R2
Input
Circuit
P2
Output
Circuit
P1
Output
Circuit
R1
Record
Channel 1
R2
Record
Channel 2
P1
Play
Channel 1
P2
Play
Channel 2
PB/EE Switch Path