Are the high-speed interface cards on the NE20 and the NE20E interchangeable?
The high-speed cards (HICs) on the NE20E and the NE20 are of the same type, but the forwarding cards are different. The forwarding card of the NE20E is a big white connector without metal shielded cover; the forwarding card of the NE20 is a flat connector with a metal shielded cover.
Therefore, only the low-speed cards on the NE20E and the NE20 are interchangeable.
Note: The NE20 only supports the ATM module of the FIC; for the HIC and slot on the NE20/20E, refer to the case SC0000343831.