The Cisco / GLC-LX-SM-RGD / Industrial Transceiver Module Single Mode Gigabit is a genuine Cisco rugged industrial-grade SFP transceiver module engineered for mission-critical Gigabit Ethernet deployments in extreme temperature environments. It is a 1000BASE-LX/LH SFP compatible with the IEEE 802.3z 1000BASE-LX standard, supporting both single-mode and multimode fibre Optcore — delivering reliable optical connectivity in factory floors, outdoor cabinets, transportation infrastructure, utility plants, and any environment where standard commercial transceivers simply cannot survive. Furthermore, the GLC-LX-SM-RGD operates across an extended industrial temperature range of -40°C to +85°C (-40°F to +185°F) Optcore, far exceeding the 0°C to 70°C limit of standard commercial SFP modules. Consequently, this transceiver stays fully operational through extreme cold, intense heat, and rapid thermal cycling without performance degradation.
Optical Performance & Fibre Compatibility
The module uses a 1310 nm wavelength with a transmit power range of -3 to -9.5 dBm and a receive sensitivity range of -3 to -20 dBm. Optcore Additionally, it achieves a maximum transmission distance of 10 km over G.652 single-mode fibre (SMF), or up to 550 m over 62.5 µm multimode fibre (MMF) Optcore — giving network architects flexibility to deploy it across both new SMF runs and existing MMF infrastructure. The maximum channel insertion loss is 2.4 dB on any MMF and 6 dB on G.652 SMF. Optcore Moreover, the duplex LC connector accepts standard fibre patch cables, making integration straightforward in any structured cabling environment.
Platform Compatibility & Standards Compliance
The Cisco / GLC-LX-SM-RGD integrates seamlessly with the full range of Cisco Catalyst, Nexus, ISR, and Industrial Ethernet switch platforms. It complies with the SFP Multi-Source Agreement (SFF-8472 MSA) and IEEE 802.3z, ensuring full interoperability across Cisco-certified infrastructure. Additionally, the module carries CE and RoHS certification, meeting all relevant European safety and environmental standards. Note that this model does not support Digital Optical Monitoring (DOM) — administrators requiring real-time optical diagnostics should consider the GLC-LX-SM-RGD with DOM capability instead. Whether you are deploying Gigabit Ethernet across a manufacturing plant, outdoor substation, transportation network, or extreme-climate data environment, the Cisco / GLC-LX-SM-RGD / Industrial Transceiver Module Single Mode Gigabit delivers the optical performance, industrial durability, and Cisco platform compatibility your critical infrastructure demands. To check availability, check our stock. For full official specifications, visit the Cisco SFP Modules official datasheet page.
Key Features:
- Industrial Temperature Range: -40°C to +85°C — Operates reliably across extreme temperature environments far beyond the limits of standard commercial SFP modules — ideal for outdoor, factory, and utility deployments
- 10 km SMF / 550 m MMF Dual-Fibre Compatibility — Achieves 10 km over G.652 single-mode fibre and 550 m over 62.5 µm multimode fibre, supporting both new SMF runs and existing MMF cabling infrastructure
- 1310 nm Wavelength — 1000BASE-LX/LH — Fully compliant with IEEE 802.3z 1000BASE-LX standard, delivering stable 1.25 Gbps Gigabit Ethernet over duplex LC fibre connections
- Hot-Pluggable SFP — Duplex LC Connector — Standard SFP MSA form factor with duplex LC connector for seamless integration into Cisco Catalyst, Nexus, ISR, and Industrial Ethernet platforms
- CE & RoHS Certified — Genuine Cisco — Original Cisco module meeting all European safety and environmental compliance standards, fully validated for Cisco platform firmware recognition and warranty preservation
| Feature | Specification / Detail |
|---|---|
| Brand | Cisco Systems, Inc. |
| Part Number | GLC-LX-SM-RGD |
| Product Type | Industrial Rugged SFP Transceiver Module |
| Standard | IEEE 802.3z 1000BASE-LX / LH |
| Data Rate | 1.25 Gbps (Gigabit Ethernet) |
| Wavelength | 1310 nm (1270–1355 nm range) |
| Fibre Type — SMF | G.652 Single-Mode Fibre — 10 km max |
| Fibre Type — MMF | 62.5 µm MMF — 550 m max |
| Connector | Duplex LC |
| Transmit Power Range | -3 to -9.5 dBm |
| Receive Power Range | -3 to -20 dBm |
| Max Insertion Loss (SMF) | 6 dB (G.652 SMF) |
| Max Insertion Loss (MMF) | 2.4 dB (any MMF) |
| Optical Budget | ≥ 15 dB (guaranteed minimum) |
| Digital Optical Monitoring | Not supported (DOM — No) |
| Form Factor | SFP (Small Form-factor Pluggable) — Hot-pluggable |
| Operating Temperature | -40°C to +85°C (Industrial Rugged) |
| Storage Temperature | -40°C to +85°C |
| Compatible Platforms | Cisco Catalyst, Nexus, ISR, Industrial Ethernet switches |
| Standards Compliance | IEEE 802.3z, SFP MSA (SFF-8472) |
| Certifications | CE, RoHS |
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