GLC-ZX-SMD Genuine Cisco GLC-ZX-SMD Long Distance Transceiver

Cisco GLC-ZX-SMD - Overview

The GLC-ZX-SMD is the DOM-enabled version of the GLC-ZX-SM. DOM (Digital Optical Monitoring) allows real-time monitoring of optical parameters such as transmit/receive power, temperature, voltage, and laser bias current. This makes it especially useful in long-haul deployments where proactive monitoring is critical.

🔧 Key Specifications

• Form Factor: SFP (hot-swappable)
• Standard: IEEE 802.3z 1000BASE-ZX compliant
• Wavelength: 1550 nm (long-haul laser)
• Connector: Duplex LC
• Fiber Type: Single-mode fiber (SMF)
• Reach:
  • Up to 70 km on standard SMF
  • Up to 100 km on premium or dispersion-shifted SMF
• Data Rate: 1 Gbps line rate
• DOM Support: Yes (monitors optical health in real time)
• Compatibility: Supported across Cisco Catalyst, Nexus, and MDS platforms
• Hot-Swappable: Yes, without disrupting system operation

🧩 Ideal Use Cases

• Service provider backbones requiring long-distance Gigabit Ethernet links
• Enterprise or campus networks interconnecting remote sites over metro or regional distances
• Data center interconnects (DCI) where proactive monitoring is essential
• Environments needing DOM for troubleshooting and predictive maintenance