Cisco 10GBASE X2 and Xenpak Modules

Main features of Cisco 10GBASE X2 modules include:
Support 10GBASE Ethernet.

Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network.

Provides flexibility of interface choice.

Supports "pay-as-you-populate" model.

Supports the Cisco quality identification (ID) feature that enables a Cisco switch or router to identify whether the module is certified and tested by Cisco.

Has optical interoperability with respective 10GBASE Xenpak and 10GBASE XFP modules on the same link.

Either 10G Ethernet or 10G Fibre Channel versions are available. X2 transponders are used in datacom optical links only (not telecom), and they are smaller than old generation XENPAK transponders. Its electrical interface to the host board is also standardized and is called XAUI (4 x 3.125 Gb/s).

POFLink manufactures X2-10G-SR 300m, X2-10G-LR 10km, X2-10G-ER 40km, X2-10G-ZR 80km optical modules. All modules support Digital Optical Monitoring (DOM) function .