Technical Documentation
Switching Plane Connections Between the TX Matrix Router and T640 Routers
The switching plane connections between the T640 routers and the TX Matrix router are provided by the fiber-optic array cables that connect the T640-SIBs to the TX-SIBs. Table 1 shows these connections. Each column represents a TX-SIB (TX-SIB-0 through TX-SIB-4), and each cell within a column represents an adapter on that TX-SIB. Each cell specifies the TX-SIB adapter (LCC0 through LCC3) and its connection to a T640-SIB in one of the T640 routers. For example, adapter LCC0 on TX-SIB-0 is connected to T640-SIB-0 in chassis LCC0, adapter LCC1 on TX-SIB-0 is connected to T640-SIB-0 in chassis LCC1, and so on.
The cable connections provided in Table 1 apply to routing matrix configurations using from one through four T640 routers. For example, if you have a single T640 router in your configuration, the connections from each TX-SIB to chassis LCC0 are presented in the first row of the table. If you have two T640 routers in your configuration, the connections from each TX-SIB to chassis LCC0 and LCC1 are presented in the first two rows of the table, and so on.
Table 1: Fiber-Optic Array Cable Connections Between TX-SIBs and T640-SIBs
TX-SIB-0 Adapter and Destination | TX-SIB-1 Adapter and Destination | TX-SIB-2 Adapter and Destination | TX-SIB-3 Adapter and Destination | TX-SIB-4 Adapter and Destination |
|---|---|---|---|---|
LCC0—T640-SIB-0 in LCC0 | LCC0—T640-SIB-1 in LCC0 | LCC0—T640-SIB-2 in LCC0 | LCC0—T640-SIB-3 in LCC0 | LCC0—T640-SIB-4 in LCC0 |
LCC1—T640-SIB-0 in LCC1 | LCC1—T640-SIB-1 in LCC1 | LCC1—T640-SIB-2 in LCC1 | LCC1—T640-SIB-3 in LCC1 | LCC1—T640-SIB-4 in LCC1 |
LCC2—T640-SIB-0 in LCC2 | LCC2—T640-SIB-1 in LCC2 | LCC2—T640-SIB-2 in LCC2 | LCC2—T640-SIB-3 in LCC2 | LCC2—T640-SIB-4 in LCC2 |
LCC3—T640-SIB-0 in LCC3 | LCC3—T640-SIB-1 in LCC3 | LCC3—T640-SIB-2 in LCC3 | LCC3—T640-SIB-3 in LCC3 | LCC3—T640-SIB-4 in LCC3 |
Figure 1 shows the control and switching planes connections between the TX Matrix router and a T640 router. Five switching planes are shown.
 | Note: Because the T640-SIB adapters and fiber-optic array cable connectors extend beyond the rear of the chassis, you need a minimum of 4 inches of clearance in the rear of a T640 router installed in a cabinet. |
Figure 1: Switching Planes Connections
