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Long-Reach 1000BASE-ZX 1550nm sfp module DFB, Duplex LC, up to 80 km sfp module
Short Product Highlights
- 1G Long-Reach SFP for SMF — 1550 nm, up to 80 km.
- Duplex LC connector with DFB laser and DOM diagnostics.
- Hot-pluggable, +3.3V, MSA-compatible — OEM replacement for GLC-ZX-SM.
1. Product Description
1550nm SFP module,This is a Cisco-compatible 1.25 Gb/s SFP transceiver implementing the 1000BASE-ZX standard. It utilizes a 1550 nm DFB transmitter and a duplex LC connector to achieve extended reach over single-mode fiber, commonly rated for distances up to 80 km. The module supports Digital Diagnostics Monitoring (DOM/DDM) via an I²C interface, complies with the SFP MSA, and operates on a single +3.3V power supply with low power consumption. Its hot-swappable nature makes it a direct replacement for OEM modules in switches and routers requiring long-haul Gigabit Ethernet connectivity.
2. Key Features
- Long-Reach Connectivity: Designed for single-mode fiber links with a typical transmission distance of up to 80 km, ideal for backbone and metro applications.
- 1550 nm DFB Laser: Features a high-performance Distributed Feedback (DFB) laser transmitter for stable and reliable signal integrity over long hauls.
- Digital Diagnostics Monitoring (DDM): Provides real-time monitoring of temperature, optical power, and other key parameters, as defined by the SFF-8472 standard.
- Hot-Pluggable SFP Form Factor: MSA-compliant design allows for easy installation and removal without powering down the host equipment.
- Low Power Consumption: Operates on a single +3.3V supply with typical power dissipation under 1 Watt.
- Extended Temperature Options: Available in both commercial and extended/industrial temperature variants to suit various operating environments.
3. Product Specification Table
| Parameter | Typical Value / Note |
|---|---|
| Compatible Model | GLC-ZX-SM (Cisco compatible), often sold as SFP1G-ZX-55 or similar. |
| Standards | IEEE 802.3z (1000BASE-ZX) / SFP MSA |
| Data Rate | 1.25 Gb/s (Gigabit Ethernet) |
| Wavelength (Tx) | 1550 nm |
| Max. Reach | Up to 80 km on 9/125 µm Single-Mode Fiber (SMF) |
| Connector | Duplex LC (UPC) |
| Optical Budget | Tx Power: ~ -5 to 0 dBm; Receiver Sensitivity: ≤ -24 dBm |
| Power Supply | +3.3 V |
| Power Dissipation | Typically < 1 W |
| Diagnostics | Digital Diagnostics Monitoring (DOM/DDM), SFF-8472 compliant |
| Operating Temperature | Commercial: 0°C to +70°C; Extended/Industrial variants available (e.g., -40°C to +85°C) |
| Form Factor | Hot-pluggable SFP |
4. Typical Use Scenarios / Recommended Applications
- Long-Haul Uplinks: Connecting Points of Presence (POPs) or central offices to aggregation nodes in campus and metro backbone networks.
- ISP and Carrier Backbones: Used in service provider networks for backbone links and traffic aggregation requiring 1550 nm single-mode technology.
- Data Center & Telecom Sites: A cost-effective, compatible replacement for legacy 1G long-reach ports in various networking equipment.
- Test Labs & Spare Parts: Ideal for lab environments and as field service spares for technicians needing reliable, hot-swappable modules.
5.Quality Certifications
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