SS61ET1 Is Huawei OptiX 2500 Ethernet Interface Board
Huawei OptiX 2500 Ethernet Interface Board SS61ET1 Overview
10 M/100 M Ethernet Interface Board ET1/ET1S
The SS61ET1 board is the 10M/100M Ethernet service access processing board.
It accesses eight 10M/100M Ethernet services and conducts long distance transmission of the Ethernet data packets through the 1 to 48 E1s (each board can provide 48 E1s at most). The ET1 board can be inserted in slots IU1–IU4, and IU9–IU12.
The ET1S is the enhanced ET1 board. The Layer 2 switching function is added to the ET1S board. Thus, the board supports transparent transmission, convergence and Layer 2 switching of Ethernet services.
The ET1/ET1S board must work together with the Ethernet service interface board (EMT8/ EMF8/EMF4).
The following takes the ET1 as an example to describe the ET1/ET1S. Their differences are listed in notes.