Cobalt Digital FUSION 3G 9901-UDX 3G_HD_SD Up Down_Cross Converter - Manual (Page 27)

9901-UDX-OM (V1.15) 9901-UDX PRODUCT MANUAL 1-23
Introduction
9901-UDX Functional Description
The function can monitor any combination of channels on the card internal
bus, or audio DSP output channels such as upmixed and loudness-processed
channels (channel routing to the meters is independent of any other card
routing and does not affect the channels in any way). The two loudness meters
readily allow pre and post-processed loudness processing comparison when
loudness processing is being performed by the card.
The function provides a configurable short term window for tailoring the
measurement to suit various program material conditions.
Control and Data Input/Output Interfaces
GPI Interface
Two independent ground-closure sensing GPI inputs ( GPI 1 and GPI 2 ; each
sharing common ground connection as chassis potential) are available.
Associated with each GPI user control is a selection of one of 64 user-defined
card presets in which GPI activation invokes a card control preset. Because
the GPI closure invokes a user-defined preset, the resulting setup is highly
flexible and totally user-defined. Invoking a user preset to effect a change
involves card setup communication limited only to the items being changed;
the card remains on-line during the setup, and the called preset is rapidly
applied.
GPI triggering can be user selected to consider the activity on discrete GPI
ports, or combinations of logic states considering both GPI inputs. This
flexibility allows multistage, progressive actions to be invoked if desired.
Indication is provided showing whenever a GPI input has been invoked.
GPO Interface
Two independent SPST NO electromechanical non-referenced (floating)
contact pairs (
GPO 1/1 and GPO 2/2 ) are available. A GPO can be invoked by
setting a GPO to be enabled when a card preset is in turn applied (i.e., when a
preset is invoked (either manually or via event-based loading), the GPO is
correspondingly also activated.
Serial (COMM) Ports
The 9901-UDX is equipped with two, 3-wire serial ports ( COM 1 - Serial
Port 1 , COM 2 - Serial Port 2 ). The ports allow serial metadata import and
export between optional Dolby ® encoders and decoders. The ports also
provide for SMPTE 2020 de-embedding to an output port, and provide
RS-485 LTC I/O (when licensed with option
+LTC ).