| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | GLC-EX-SMD | |
| 2 | Alcatel-Lucent | SFP-GIG-LH40 | |
| 3 | NVIDIA/Mellanox | MFE1P00-EX-CM | |
| 4 | Arista Networks | SFP-1G-EX-40 | |
| 5 | Juniper Networks | SFP-1GE-EX-40 | |
| 6 | Huawei | S-SFP-GE-LH40-SM1310 | |
| 7 | Brocade | E1MG-EX-40 | |
| 8 | H3C | SFP-GE-LH40-SM1310 |
| H3C Compatible | SFP-GE-LH40-SM1310 | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm | Max Distance | 40km |
| Connector | Duplex LC | Transmitter Type | 1310nm DFB |
| Cable Type | SMF | Receiver Type | PIN |
| TX Power | -5.0~0dBm | Receiver Sensitivity | < -23.0dBm |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | Operation Temperature | 0 to 70°C (32 to 158°F) |
Full Compatibility List and Supported Devices of Fiber Optic Transceiver
One of the biggest advantages of third-party optical transceiver is their strong brand compatibility,which helps enterprises cut hardware costs without sacrificing performance.Our 1G SFP 40km optical transceivers are fully tested and certified to work seamlessly with the following H3C equipments:
S5500 Series: S5500-EI, S5500-SI, S5560-EI, S5560-HI Series
S5100 Series: S5120-EI, S5130-EI, S5130-HI Series
High-Density Chassis Engines: S7500E, S7500E-X, S10500 Series Core Switches
Note: When using this 1G optic in a 10G SFP+ or 25G SFP28 interface slot, use the Comware interface console configuration to hard-code the lane rate matching down to 1G using the speed 1000 command syntax.
MSR Series Routers: MSR 2600, MSR 3600, MSR 5600 Series
SecPath Next-Gen Firewalls: F1000, F5000 Series
Main Application Scenarios of Fiber Connection Module
Enterprise Campus & Ring Aggregation: Connecting separate multi-building campus networks, hospital zones, or regional corporate structures spanned across distances up to 40km.
Smart City & IP Surveillance Backhauls: Pushing high-volume video surveillance feeds or IoT traffic aggregation points from remote municipal fields back into a centralized data center switch ring.
FTTX Service Edge Pipelines: Providing reliable long-haul gigabit links from telecom edge infrastructure devices straight into regional provider routing networks.


Q1: Can I use the H3C SFP-GE-LH40-SM1310 in 10G SFP+ interface ports?
A1: Yes, you can. The SFP-GE-LH40-SM1310 uses a standard 1000BASE-X fiber engine framework that functions within 10G SFP+ cages. To establish a stable connection path under H3C Comware, enter the target interface structure via the CLI and manually drop the line link configuration speed using the command parameter: speed 1000.
Q2: What is the main structural difference between SFP-GE-LX-SM1310 and SFP-GE-LH40-SM1310?
A2: Link distance limits and laser transmission intensity. The standard SFP-GE-LX-SM1310 (LX standard) uses a regular Fabry-Perot laser optimized to clear maximum spans up to 10km. The SFP-GE-LH40-SM1310 uses an amplified, highly stable DFB laser engine capable of extending that exact same data pipeline up to 40km over standard single-mode lines.
Q3: Does this module support multi-mode legacy fiber networks?
A3: No. The SFP-GE-LH40-SM1310 is built strictly for Single-Mode Fiber (SMF). Attempting to pass its highly concentrated, high-power 1310nm laser down a Multi-Mode (OM1/OM2/OM3/OM4) line will generate catastrophic modal dispersion and immediately fail to complete a stable link.
Q4: Do I need an inline optical attenuator when testing this module over short distances?
A4: Yes, an inline attenuator is required for short loops. Because this transceiver uses an amplified transmitter to push data across 40km, its optical launch output is intense. Connecting two LH40 modules directly on a test bench using a short patch cable without a 5dB to 10dB optical attenuator will risk overloading and permanently damaging the delicate photodiode receiver circuit.
Q5: Can this module down-negotiate to Fast Ethernet (100Mbps) speeds?
A5: No. This is a fixed-rate 1G optical module. It does not feature multi-rate downward compatibility for 10M or 100M lines. The remote transceiver on the other side of your fiber run must also be a matching fixed 1Gbps long-haul optic.
Q6: Does this module support digital diagnostic monitoring (DOM) inside H3C Comware?
A6: Yes. The module features complete DOM/DDM integration. You can easily view real-time diagnostic telemetry data (such as exact laser launch strength and receiver power in dBm) inside the H3C console by executing the system query command: display transceiver diagnosis interface.
Q7: What type of fiber connector profile does this module require?
A7: The SFP-GE-LH40-SM1310 features an LC Duplex female connection profile. It pairs directly with standard duplex LC-to-LC Single-Mode fiber patch cords.
Q8: Will using a third-party compatible SFP-GE-LH40-SM1310 void my H3C equipment warranty?
A8: No. Equipment warranties cannot be voided solely because you deploy standard-compliant MSA third-party transceivers. Our compatible modules are pre-written with genuine H3C vendor identification keys so they initialize instantly without generating system syntax errors.
Why Network Engineers Choose HYTOPTODEVICE
HYTOPTODEVICE has supplied over 5000,000 optical transceiver modules to data centers, ISPs, and enterprise networks across 100+ countries since 2011. Every module undergoes a 72-hour burn-in test and full DDM/DOM validation before shipment.
"We replaced 200 Cisco-branded SFPs with HYTOPTODEVICE equivalents across our spine layer — zero compatibility issues, 40% cost reduction."— Network Architect, Tier-2 ISP, Germany
Quality Certification & Compliance
At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final inspection, our processes ensure global compliance and reliability.
We adhere to rigorous standards for our SFP modules and network solutions:
ISO 9001: Certified quality management and production consistency.
CE & FCC: Fully compliant for seamless Global Market Access.
RoHS: Committed to environmental responsibility and hazardous material control.
Proven Reliability: Rigorous testing to reduce compliance risk and ensure safety.
Certified Quality. Global Standards. Guaranteed Performance.






