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Cable Connections
DPM Configurations
Digital Picture Manipulators (DPMs) are external video devices connected
to the switcher. In this discussion, reference is also made to DPM levels,
which are E-MEM levels into which DPM-associated information is
learned. The combined system capabilities of the switcher and DPMs
depend on:
■ The video connection
■ The capabilities of the DPM
■ The control connection
It is not necessary to have a control connection from the switcher to a DPM;
however, the highest level of system integration is achieved where there is
a control connection.
The Video Connection (Aux Buses and Return Inputs)
A normal video signal path consists of an Aux Bus output from the
switcher feeding a DPM input and the DPM output returned to a switcher
input which is mapped to a switcher source select button.
The video path through a DPM introduces a video delay into the system.
For example, Kaleidoscope introduces a 2-field video delay. It is most
important that this delay be set correctly in the DPM Setup menu if Effects
Send is to be used.
NOTE:
If the video delay is not set correctly, there will be a glitch in the video upon
entering Effects Send mode.
There are four steps in configuring the video path:
■ Aux buses are assigned to DPMs using the DPM Map Aux Bus 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