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.
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.
