Cisco 1000BASE-EX SFP Transceiver Module for SMF
GLC-EX-SMD Cisco 1000BASE-EX SFP Transceiver
The Cisco 1000BASE-EX SFP operates on standard single-mode fiber-optic link spans of up to 40 km in length. A 5-dB inline optical attenuator should be inserted between the fiber-optic cable and the receiving port on the SFP at each end of the link for back-to-back connectivity.
Manufacturers Part Number: GLC-EX-SMD=