Power Cube for Cisco IP Phones 7900 series W/O Power Cord (CP-PWR-CUBE3 / CP-PWR-CUBE3=)

Cisco Rugged SFP - SFP (mini-GBIC) transceiver module - GigE - 1000Base-LX, 1000Base-LH - LC/PC - up to 6.2 miles - 1310 nm - for Catalyst ESS9300 Embedded Series

The 1000BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans on any multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable.