CPOS interface application scenarios
CPOS E1/T1 interfaces are typically used to aggregate E1 and T1 lines, as shown in Figure 4.
High-speed CPOS interfaces are typically used to aggregate E3 or T3 lines, as shown in Figure 5.
In actual applications, the connection between low-end devices and the CPOS interfaces might span more than one transmission network and might require relay. This is similar to the scenario where low-end devices are connected to a high-end device through one or multiple leased lines.
Figure 4: CPOS E1/T1 interface application scenario
Figure 5: High-speed CPOS interface application scenario
