3025EMC Master Control Switching & Channel Branding
Revision 3.0.3 Page 139
7. EMC OPTIONS
7.1. INTERNAL MEDIA STORE
The 3025EMC comes equipped with an internal media store. This internal media store comes with four
layers for static, animated, time, date, and temperature graphics. The internal media store also stores
audio .wav files. The four layers can be multi-layered; such that multiple graphics can be placed on top
of each other. For support for crawls and dynamic text graphics the +TXT option must be installed. To
increase the number of logo layers from four to 16, the +EMG option must be installed.
The EMC uses two types of memory to take a graphic or audio file to air. The EMC uses playout cache
to take the graphic or audio file to air. This memory is considered to be in-line memory and is similar to
DRAM on a PC. The playout cache temporally stores the graphic to use on air. If the graphic is not on
air, it will remain in the playout cache to be recalled later or until another graphic is called and space is
required on the playout cache. The EMC comes with a default of 2GB of playout cache. This can be
upgraded to 8GB with the factory installed option +PC8G.
The second memory type is compact flash or off-line memory. This is where the graphic and audio files
are stored. Graphic and audio files are loaded onto the compact flash from an external PC running
Overture Suite. The files are then transferred from the compact flash to playout cache when required.
The EMC has a 2GB compact flash which can be upgraded to 8GB with the +CF8G option. For users
requiring larger off-line storage, the +NAS option allows users to mount a network drive onto the EMC.
This network storage is another storage source for the EMC to look for graphic or audio files to load into
playout cache and take to air.
Note: The customer has
to provide the network storage device for the +NAS option.
This device has to support NFSv3 and Windows File sharing.
The graphic file formats that are supported by the EMC are: .PNG, .JPG, .GIF, .TGA, .TIF, .MOV, and
.AVI. The audio file format that is supported is .WAV files. Users use Overture Media Designer import
the files and convert them .EVL (Evertz Vector Logo) file format that is used by the EMC. Users also use
Overture Media Manager to load logos onto the EMC. Please refer to the Overture Suite Users Manual
on details on the creation and management of graphic and audio files on the EMC.
7.1.1. Storage Capacity of Playout Cache
Table 7-1 and Table 7-2 provide storage capacity information in regards to the maximum quantity and
maximum animation values for the available playout cache.
Note: The animation capacity is based on and calculated using 30 frames per second;
however, the 625 standard is calculated using 25 fps.
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