Cisco GLC-LH-SMD 1PGLC-LH-SMD= 1Gbps Single-Mode GBIC SFP Transceiver Module, 1310nm Long-Haul, Digital Optical Monitoring, LC Connector, Enterprise Fiber Network Module | 30-1299-03

000BASE-LH Gigabit Fiber Standard — Full 1Gbps data rate over single-mode fiber for enterprise backbone and uplink applications
Long-Haul 10km Reach — Single-mode fiber transmission up to 10 kilometers for campus, multi-building, and inter-facility network links
1310nm Wavelength — Industry-standard optical wavelength for single-mode long-haul fiber transmission
Digital Optical Monitoring (DOM) — Real-time diagnostics including temperature, voltage, TX power, and RX power for proactive network management
GBIC / SFP Form Factor — Industry-standard Small Form-Factor Pluggable module compatible with Cisco SFP-equipped switches and routers
Cisco Validated & Authenticated — Genuine Cisco hardware with full IOS compatibility and Cisco Smart Licensing support
LC Duplex Connector — Standard LC fiber connector interface for straightforward fiber patch cable termination
Hot-Pluggable Design — Install and replace without powering down network equipment for minimal maintenance disruption
Low Power Consumption — Energy-efficient transceiver design for reduced heat output in high-density switch deployments
Single-Mode Fiber Optimized — Engineered specifically for OS1/OS2 single-mode fiber cable infrastructure

Why This Product Stands Out
The Cisco GLC-LH-SMD= occupies an irreplaceable position in enterprise fiber networking — as the genuine Cisco-validated, IOS-compatible, DOM-equipped SFP transceiver for 10km single-mode long-haul links, it is the only module that delivers full Cisco platform support, complete diagnostic visibility, and the confidence of Cisco's manufacturing quality and warranty coverage simultaneously. For organizations operating Cisco network infrastructure where uptime, supportability, and TAC assistance are non-negotiable requirements, the GLC-LH-SMD= is not simply the preferred choice — it is the only fully supported and validated option for long-haul single-mode fiber connectivity within the Cisco ecosystem.