Avaya Media Processing Server Series System (Software Release 2.1) Instrukcja Użytkownika Strona 27

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Avaya MPS Architectural Overview
# P0602477 Ver: 3.1.11 Page 27
Network Interface Controller (NIC) or Hub-NIC
Each VRC in the system contains either two NICs (primary and secondary) or a single
Hub-NIC. The Hub-NIC plugs into the NIC slot in back of the VRC, and contains two
network hubs for the chassis Ethernet. It is generally used only in single chassis
systems. In multiple chassis systems, two NICs are used. In this case a midplane board
is installed over the backplane connector of the NIC slot, effectively splitting the slot
and providing separate connectors for each NIC. The two connectors on the midplane
board are logically assigned to slot 7 (primary) and slot 8 (secondary) for addressing.
The NICs have additional functionality such as system monitor capabilities, watchdog
timer, and alarm drivers, and can interface from the intra-chassis Pulse Code
Modulation (PCM) highways to a fiber optic Asynchronous Transfer Mode (ATM)
switching fabric. The NICs receive power from any installed power supply that is on.
NIC Hub-NIC
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