Digital Data Communications LEVEL ONE FCS-4500 Manual de usuario Pagina 79

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Jamadagni H S DC/V1/2004 8
SPACE DIVISION
z
establish connection
through' galvanic connections
z
once established, contact
remains till disconnection
z
dedicated paths
z
expansion requires
additional "paths"
z
The actual switch is
called a "CROSS POINT"
TIME DIVISION
z
establish connections through data
exchange in a memory
z
contact between two parties at
specific "time-slot"
z
dedicated time-slot
z
Expansion requires additional
"time-slots"
z
The actual switch is called a
"SPEECH MEMORY"
SLOT ALLOTTED #1
SLOT ALLOTTED TO #6
Switching System Architectures
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