Cisco X2-10GB-SR Ethernet Optical Transceiver Overview The Cisco 10GBASE X2 modules (Figure 1) offer customers a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications. в—Џ Main features of Cisco 10GBASE X2 modules include: в—Џ Support 10GBASE Ethernet. в—Џ Hot-swappable input/output device plugs into an Ethernet X2 port of a Cisco switch or router to link the port with the network. в—Џ Provides flexibility of interface choice. в—ЏSupports pay-as-you-populate model. в—Џ 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. в—Џ Has optical interoperability with respective 10GBASE Xenpak, 10GBASE XFP and 10GBASE SFP+ modules on the same link. в—Џ The Cisco 10GBASE-SR Module supports a link length of 26m on standard FDDI grade MMF. Using 2000 MHz*km MMF (OM3), up to 300m link lengths are possible. Using 4700 MHz*km MMF (OM4), up to 400m link lengths are possible. X2 Port Cabling Specifications Cisco X2 Wavelength (nm) Cable Type Core Size (Microns) Modal Bandwidth (MHz*km) Cable Distance* Cisco X2-10GB-CX4 - CX4 (copper) - - 15m Cisco X2-10GB-T - CAT6A/CAT7 (copper) - - 100m Cisco X2-10GB-SR 850 MMF 62.5 62.5 50.0 50.0 50.0 50.0 160 (FDDI-grade) 200 (OM1) 400 500 (OM2) 2000 (OM3) 4700 (OM4) 26m 33m 66m 82m 300m 400m Cisco X2-10GB-LRM 1310 MMF 62.5 50.0 50.0 500 400 500 220m 100m 220m SMF G.652 - 300m Cisco X2-10GB-LX4 1310 MMF 62.5 50.0 50.0 500 400 500 300m 240m 300m Cisco X2-10GB-LR 1310 SMF G.652 - 10 km Cisco X2-10GB-ER** 1550 SMF G.652 - 40 km***