Tektronix Grass Valley 3000 - Manual (Page 71)

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Configuring External Interfaces
There are four steps in configuring the video path:
■ Aux buses are assigned to DPMs using the DPM Map Aux
Buses Menu
■ Return input connections are configured using the DPM Map
Inputs Menu
■ The mapping of a return connection to a crosspoint is done
using the Configuration/Map Inputs Menu
■ The video delay is set using the DPM Setup Menu.
The system defaults to all aux buses being part of the MISC
E-MEM level. When an aux bus is configured for use with an
external DPM, its settings are no longer saved in the
MISC level
but are saved in the relevant DPM level when an E-MEM register
is learned. Information (such as aux bus crosspoint selection) is
learned for each DPM on separate
E-MEM levels.
In cases where it is not desirable to have an aux bus selection
learned/recalled on the
MISC level, it is possible to configure the
aux bus to a DPM level (such as DPM 4 ) and never enable that level.
An example would be if the aux bus were controlled by a Remote
Aux panel.
DPM Capabilities (Fixed and Pooled)
The characteristics of the DPM are configured in the DPM Setup
Menu. The first choice to be made is selection of
DPM TYPE from
KSCOPE , KRYSTAL, OTHER FIXED or NONE .
The DPM TYPE of NONE indicates that there is no external DPM
device used for the particular DPM level. However, it can also be
used for cases where aux buses are assigned to a DPM level, but
there is no physical device, no return signal, and no control
connection (for example, an aux bus dedicated to feeding a video
monitor).