Cisco SFP-10G-LRM-I Compatible SFP+ 10GBASE-LRM 1310nm 220m DOM Duplex LC/UPC MMF/SMF Optical Transceiver Module (Industrial)

Overview

This is an industrial-grade optical transceiver engineered to be 100% compatible with the Cisco SFP-10G-LRM-I. It is designed for reliable 10 Gigabit Ethernet connectivity in harsh environmental conditions, such as outdoor enclosures, factory floors, and unconditioned network cabinets. Its robust construction ensures stable performance across an extended operating temperature range, making it ideal for mission-critical industrial applications.

Adhering to the 10GBASE-LRM (Long Reach Multimode) standard, this module offers a versatile solution for upgrading existing campus and building backbones to 10G speeds. It uses a 1310nm wavelength to transmit data up to 220 meters over standard OM3/OM4 multi-mode fiber (MMF). A key feature of the LRM standard is its ability to also support legacy OM1/OM2 MMF and even short distances over single-mode fiber (SMF), providing exceptional deployment flexibility.

Key Features

• Fully compatible with systems requiring the Cisco SFP-10G-LRM-I part.
• Industrial Temperature Range (-40°C to 85°C / -40°F to 185°F).
• Compliant with the 10GBASE-LRM Ethernet standard.
• Data transfer rates up to 10.3125 Gbps.
• Reaches up to 220m on OM3/OM4 Multi-Mode Fiber (MMF).
• Also supports legacy MMF (OM1/OM2) and SMF for short distances.
• Standard Duplex LC connector for fiber optic patch cords.
• Features Digital Optical Monitoring (DOM/DDM) for real-time diagnostics.
• Hot-pluggable SFP+ MSA-compliant form factor.

Applications

The SFP-10G-LRM-I compatible transceiver is specifically built for deployment in demanding non-climate-controlled environments. Common applications include industrial automation networks, intelligent transportation systems (ITS), utility substations, public surveillance networks, and telecommunication provider equipment located in outdoor cabinets. Its wide temperature tolerance ensures link reliability where commercial-grade modules would fail.

Specifications

Cross-Platform Compatibility

Engineered for full Cisco compatibility, this industrial module also complies with the SFP+ Multi-Source Agreement (MSA). This ensures interoperability with a wide range of networking equipment from other manufacturers that support industrial-grade 10GBASE-LRM transceivers. Below are common equivalent industrial part numbers from other major vendors:

Advantages

The primary advantage of the industrial SFP+ 10G LRM module is its operational resilience. It guarantees network uptime in extreme heat and cold, reducing service calls and hardware replacements. Furthermore, its support for existing MMF cabling provides a cost-effective upgrade path to 10G without requiring a complete fiber infrastructure overhaul. The unique flexibility to operate over both MMF and SMF simplifies inventory management and network planning for diverse environments.

FAQ (Technical & Product Questions)

1. What does Industrial grade mean for an SFP+ module?

An industrial grade module is designed and tested to operate reliably within a harsh temperature range of -40°C to 85°C (-40°F to 185°F). This is much wider than commercial grade modules (0°C to 70°C) and makes them suitable for outdoor or uncontrolled environments.

2. What is 10GBASE-LRM?

10GBASE-LRM stands for 10 Gigabit Long Reach Multimode. It is an Ethernet standard designed to provide 10Gbps connectivity over legacy and new multi-mode fiber cabling, bridging the distance gap between the shorter-reach 10GBASE-SR and longer-reach single-mode standards.

3. Can this SFP-10G-LRM-I module work with OM1 or OM2 fiber?

Yes, a key benefit of the LRM standard is its compatibility with older fiber types. While it achieves its maximum 220m reach on OM3/OM4, it can still function over shorter distances on legacy OM1 and OM2 fiber, making it excellent for infrastructure upgrades.

4. Can I use the SFP-10G-LRM-I on single-mode fiber (SMF)?

Yes, the 10GBASE-LRM standard uniquely supports operation over short distances of standard single-mode fiber, typically up to 300 meters. This adds significant flexibility if you need to connect to an SMF patch panel in a mixed fiber environment.

5. Is this module compatible with a standard SFP-10G-LRM?

Yes, you can connect this industrial module to a commercial-grade SFP-10G-LRM module at the other end of the fiber link, provided the link itself is within a controlled environment. The communication standard (LRM) is the same.

6. How is this module different from a 10GBASE-SR module?

10GBASE-SR operates at an 850nm wavelength and is designed for shorter distances on MMF. The 10GBASE-LRM module uses a 1310nm wavelength, which allows it to reach longer distances and work effectively over older, lower-bandwidth MMF cabling where SR would fail.

7. Is this module plug-and-play in Cisco equipment?

Absolutely. This transceiver is specifically programmed with Cisco-compatible code, ensuring it is recognized by Cisco switches and routers just like an original part, enabling full functionality without compatibility errors.

8. What is DOM or DDM functionality?

DOM (Digital Optical Monitoring) or DDM (Digital Diagnostic Monitoring) is a feature that allows you to monitor key parameters of the module in real-time. This includes optical output power, input power, temperature, and voltage, which is critical for troubleshooting network issues.