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Introduction
VBrick WM Appliance Admin Guide 15
WM encoder and an MPEG-4 decoder in the same appliance. In general, encoders are installed in
Slot1; decoders are installed in Slot2. WM encoders, if present, are always installed in Slot1.
Archiver and Recorder Functionality
Archiver/Recorder functionality may be different in mixed model appliances depending on
how the slots are populated. In other words, the behavior of the device in a given slot may
change depending on what combination of appliances are installed. See Figure 6 below and
note the following distinctions:
•An archiver only records from an associated encoder. For example, a WM Archiver is
associated with a specific WM encoder.
•A recorder is not associated with any encoder. It independently records one stream at a
time from an encoder, a decoder, or from the network.
• On MPEG-4 appliances, there is no archiving or recording.
Figure 6. Archiver/Recorder Functionality
Note VBrick WM, MPEG-2, and MPEG-4 appliances all run the same codebase. The
configurable options and user interface vary according to the type of appliance (e.g.
MPEG-2, MPEG-4, etc.) on which the code is installed.