System architecture 19
Network/Peripheral configuration
The allocation of peripheral equipment to the network loop determines the
traffic handling capability of the switching network. The lower the number
of terminations, the higher the loop traffic capacity. The quantity and type
of terminal assignments are allocated to optimize the traffic handling
capabilities of the switching network.
A universal PE bus structure permits any mix of PE card types to be located
in a PE module. Provisioning of PE cards and their associated density
(number of ports) determines the network loop to PE module configuration.
Complete modularity permits voice and data modules to be segregated so
that the specific traffic patterns of one may be met without impeding the
other.
Enhanced Network Configurations
For peripheral equipment housed in NT8D13 PE modules, network capacity
may be allocated in single lcop mode and dual loop mode. In single-loop
mode, one peripheral equipment module is connected to one network loop,
yielding a maximum concentration of 160 terminations to 30 time slots. In
dual loop mode, half of the PE cards in a module use one loop, and the other
half use another loop, yielding two maximum concentrations of 80
terminations to 30 time slots.
System overview 553-3001-100
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