line-card chassis (LCC)
A T640 routing node installed in a routing matrix.
routing matrix
A high capacity, multichassis routing platform that combines multiple T640 routing nodes with a TX Matrix platform switch fabric.
switch-card chassis (SCC)
A TX Matrix platform installed in a routing matrix.
Switch Interface Board (SIB)
On T640 routing nodes and the TX Matrix platform, a switch fabric plane component that forwards packets from a source Packet Forwarding Engine to a destination Packet Forwarding Engine in a routing matrix.
TX Matrix platform
A high-speed centralized switch fabric that connects multiple T640 routing nodes in a routing matrix.