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  | Table   | ||
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  | MGC | Description | 
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  | Functional  | The Functional Modules, also known as cards, perform  | 
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  | Modules  | the various audio, video, and data processing functions  | 
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  | for the MGC unit. Both the   | 
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  | use the same functional modules.Any module can be  | 
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  | inserted into any slot and servicing can be performed  | 
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  | while the system is in operation. The   | 
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  | contain up to 16 Functional Modules and the   | 
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  | contain up to 8 Functional Modules.  | 
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  | Input/Output (I/O)  | Input/Output (I/O) Cards connect the Functional Modules  | 
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  | Cards  | to external systems and networks.  | 
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