GLC-ZX-SM Overview 1000BASE-ZX SFP for Long-Reach Single-Mode Fibers The 1000BASE-ZX SFP operates on standard single-mode fiber-optic link spans of up to approximately 70 km in length. The SFP provides an optical link budget of 21 dB, but the precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors. When shorter distances of single-mode fiber (SMF) are used, it might be necessary to insert an inline optical attenuator in the link to avoid overloading the receiver. A 10-dB inline optical attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP at each end of the link whenever the fiber-optic cable span loss is less than 8 dB. Product Code: Cisco GLC-ZX-SM Compatible 1000Base-ZX SMF SFP (mini-GBIC) Transceiver Module Connector Type: LC single-mode Type: Fibre Channel / Ethernet 1000Base-ZX Compliant Standards: EN 60825 , EN 60950 , FDA , MSA , RoHS Cabling Type: Ethernet 1000Base-ZX Connectivity Technology: Wired Data Link Protocol: Fibre Channel , Gigabit Ethernet Data Transfer Rate: 1.25 Gbps Features: Digital Diagnostics Monitoring Interface (DDMI) Form Factor: Plug-in module Max Transfer Distance: 49.7 miles Optical Wave Length: 1550 nm Networking Type: SFP (mini-GBIC) transceiver module Our stock support good price C1000-48P-4G-L C9500-NM-8X CAB-SPWR-30CM C1000-48T-4G-L C9800-F-X-K9 C9200L-STACK-KIT WS-C2960X-24TS-LL N9K-C93180YC-FX PWR-C4-950WAC-R WS-C2960X-24PSQ-L N3K-C3172PQ-XL C9200-NM-4G WS-C2960X-24PS-L N2K-C2348UPQ C9200-NM-4X WS-C2960X-48TS-L AIR-AP1832I-H-K9 C9300-NM-4G WS-C2960L-24PS-AP AIR-AP2802I-H-K9 C9300-NM-8X WS-C2960L-16TS-LL C9115AXI-H GLC-LH-SMD WS-C2960L-8TS-LL C9120AXI-H SFP-10G-SR WS-C3560-48FS-S AIR-AP1562I-H-K9 SFP-10G-LR WS-C2960X-24PS-L AIR-AP1562D-H-K9 SFP-10G-SR-S C9200L-48P-4X-E C9800-L-C-K9 SFP-10G-LR-S C9200L-48P-4G-E C9800-L-F-K9 GLC-TE C9200L-24T-4G-E AP505 SFP-H10GB-CU2M C9300-24T-A AP515 MA-CBL-40G-3M C9300-48T-A CP-3905 GLC-LH-SMD= C9300-24S-A CP-7821-K9 ISR4331/K9 C9300-48S-A CP-8832-MIC-WIRED ISR4331/K9 RF C9300-48P-E CS-MIC-TABLE-J FPR2110-ASA-K9 C9300-24P-E AIR-AP3802I-E-K9 FPR2110-ASA-K9 C9300L-24T-4G-E C1111-8P FPR2120-ASA-K9 C9300L-48T-4G-E PWR-C5-125WAC FPR2130-ASA-K9 C9300-NM-8X PWR-C5-1KWAC C9200-NM-4G= C9400-LC-24S PWR-C6-125WAC C9200-NM-4G= C9400-LC-48S STACK-T1-50CM C9200L-24P-4G-CE C9500-24Y4C-A STACK-T1-1M C9200L-24P-4G-CE C9500-48Y4C-A STACK-T1-3M C9200L-48P-4G-E