Automatic Aspect Ratio Conversion
– The 7900 supports WSS (Wide Screen
Signaling), AFD (Active Format Description) to mark or identify the aspect ratio of the
video content. These flags are generated at the output of the module and read at the
module input. This allows the up and down conversion process to adapt automatically to
material that is already in letterbox or pillarbox form in order to produce the most appro-
priate conversion.
Audio Submodule Options
– Audio is automatically delayed as needed to compensate
for the video processing in the 7900 when an audio submodule is installed. For complete
audio processing, choose from three different audio submodules that plug onto the main
circuit board.
The 8415 is an 8-channel audio submodule with AES I/O that provides management of
embedded audio in the processing path, or supports audio embedding /disembedding
alongside the video processing elements. Embedded audio is safely bypassed around the
video frame store with the lip sync preserved. Level adjustments and channel shuffling
are accessed through the built-in audio mixer. All audio processing is performed at full
24-bit resolution by a digital signal processor (DSP).
The 7610 audio submodule provides carriage of up to eight channels of embedded audio
through the format conversion process. Embedded audio in the input signal is delayed to
match the video delay and preserve lip sync. The delayed content is reinserted in the
video output. No level adjustment or channel swapping is provided.
The 7615 audio submodule also provides processing for signals with eight channels of
embedded audio. It offers the same processing and AES I/O as the 8415, plus the ability to
decode Dolby-E signals.
Configuration And Control
The on-board CPU can monitor and report module ID information (slot location, software
version and board revision), power status, and ancillary data status to the optional frame
System Control module. This information can be accessed by the user or set to register an
alarm if desired using the remote control options available.
Power is derived from the ± 12 volt frame power. It is regulated to the re5 volts
for the module by on-board regulator. The module is fused with a resettable fuse device.
If the fuse opens due to an overcurrent condition, the module will lose power. After pulling
the module, the fuse will reset automatically requiring no replacement fuse.
The 7900 can be configured locally or controlled and configured remotely with Avenue
Touch Screens, Express Panels, or Avenue PC Software. Alarm generators, configurable
user levels, module lock out, and customizable Virtual Modules are just some of the tools
included in the Avenue Control system.
Modules at software version 2.2.0 or later support SNMP (Simple Network Management
Protocol) monitoring. For each applicable signal processing module, module, signal, and
reference status are reported. For complete details on using SNMP monitoring, refer to
the
Avenue System Overview
in the manual that accompanies each frame.
Model 7900 HD Up/Down/Cross Converter
7900-5
