Technical Description
queuing and can be configured, per node, to use 1–8 of the queues. Which
queue to use for untagged packets can be configured per port and direction.
3.7.4.1.4 High Speed
This block provides a Point-to-Point connection to other PIUs via the High
speed Bus.
3.7.4.1.5 Control and Supervision
This block interfaces the PCI bus and handles control and supervision. Its main
functions are to collect alarms, control settings and tests.
The block communicates with the NPU over the PCI bus.
3.7.4.1.6 SPI
This block interfaces the SPI bus and handles equipment status. Failure is
indicated by LED’s on the front of the unit.
3.7.4.1.7 Power
This block interfaces the Power bus and provides secondary voltages for the
unit. All plug-in units have a standard power module providing electronic soft
start and short circuit protection, filter function, low voltage protection, DC/DC
converter and a pre-charge function.
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12/221 02-CSH 109 32/1-V1 Uen A 2008-03-14
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