Huawei S-SFP-GE-LH40-SM1310  Compatible 1000BASE-EX SFP 1310nm 40km DDM Duplex LC/UPC SMF Optical Transceiver Module

The HYTOPTODEVICE Huawei compatible 40km SFP is rigorously tested for compatibility with:

• Huawei S-Series Campus Switches: S2700, S3700, S5700, S5720, S5735, S6700, S6720, S6730 series.

• Huawei CloudEngine (CE) Series: CE5800, CE6800, CE7800, CE12800 series.

• Huawei AR-Series Enterprise Routers: AR1200, AR2200, AR3200, AR6000 series.

• Huawei Quidway NetEngine (NE) Routers: NE20E, NE40E series (SFP uplink ports).

• Inter-Building Fiber Connections: Linking remote office buildings or security stations across a city or large industrial park up to 40km apart.

• Metropolitan Area Networks (MAN): Providing reliable 1.25G fiber uplinks for municipal or regional government networks where standard 10km LX reach is insufficient.

• Carrier Edge Access: Ideal for high-stability fiber handoffs for ISPs requiring a strong 1310nm LH laser in Huawei-based infrastructures.

FAQ for Huawei S-SFP-GE-LH40-SM1310  Compatible SFP Transceiver:

Q1: Will the HYTOPTODEVICE module cause an "unrecognized transceiver" alarm in Huawei VRP? A: No. Our modules are flashed with the correct Huawei EEPROM signatures, ensuring they are identified correctly by the VRP (Versatile Routing Platform) without "unsupported transceiver" logs or port-shutdown issues.

Q2: Does this 40km module support DDM/DOM? A: Absolutely. It features full Digital Diagnostic Monitoring (DDM), allowing you to monitor real-time metrics such as laser temperature, supply voltage, and optical power via the Huawei CLI (e.g., display transceiver interface).

Q3: Can I use this 1G module in a Huawei 10G SFP+ port? A: Yes, most Huawei 10G SFP+ ports support dual-speed auto-negotiation. Simply insert the S-SFP-GE-LH40-SM1310 compatible module, and the port will typically downrate to 1000Mbps.

Q4: Do I need an optical attenuator for short fiber runs? A: Yes. For fiber links shorter than 5km, we recommend using a 10dB LC optical attenuator. This protects the sensitive receiver from being over-saturated by the high-power 1310nm laser used for 40km reach.

Q5: Huawei S-SFP-GE-LH40-SM1310 not working？ A:Follow these quick steps:

1. Check DDM: Run show transceiver detail on the switch. Look for Low Rx Power or faults.

2. Clean & Reseat: Clean the LC fiber connectors and firmly re-seat the SFP module.

3. Verify Fiber: Ensure you are using a single-mode (SMF) patch cable. Check for bends or breaks.

4. Swap Test: If possible, test the SFP in a different port or swap it with a known-working module to isolate the fault.

If DDM shows "Low Tx Power" or "Fault", the module is likely defective and needs replacement

Quality Assurance：Your Trusted Optical Transceiver Source

HYTOPTODEVICE is a vertically integrated manufacturer of high-performance optical transceivers. By controlling core materials at the source, we ensure every SFP module meets the highest standards of reliability and customization.

• Vertical Integration: In-house core material production ensures a stable, self-sufficient supply chain for all optical modules.

• Total Traceability: End-to-end oversight from raw components to final transceiver assembly guarantees 100% controllability.

• Bespoke Solutions: Expert-led R&D provides customized SFP transceiver designs tailored to your specific technical needs.

• 24-Hour Response: Our technical team guarantees a primary response to any inquiry or quality concern within 24 hours.

Carrier-Grade Quality. Factory-Direct Control. Rapid Response.

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,UL & 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.

Rigorous Industrial Product Testing：

   

100% 3rd Party Compatible：

Partial Test Demonstration: