The E120 router and the E320 router support the ES2-S3 GE-20 IOA. Other E-series routers do not support the ES2-S3 GE-20 IOA.
The ES2-S3 GE-20 IOA pairs with the ES2 10G LM to provide Gigabit Ethernet operation through 20 line interfaces.
The ES2-S3 GE-20 IOA is offered in a full-height size that uses both adapter bays. The IOA is identified by the software as adapter bay 0. For more information about installing IOAs, see the E120 and E320 Hardware Guide.
The IOA can use either fiber-optic or copper SFPs. The IOA accepts up to four pairs (Tx/Rx) of LC-style fiber-optic connectors that support different optical modes and cabling distances.
The ES2-S3 GE-20 IOA does not support port redundancy.