H3C SFP-FE-LH40-SM1310 Compatible 100M SFP Module | 100BASE-EX 1310nm 40km Bulk Factory Wholesale | HYTOPTODEVICE

Q: Can HYTOPTODEVICE SFP-FE-LH40-SM1310 100BASE-EX SFP modules run on 10G/40G switch ports with reduced speed?

HYTOPTODEVICE 100BASE-EX modules only work on 100M/1G dual-rate SFP ports with speed adaptation. They cannot run on 10G/40G dedicated ports due to different hardware protocols. Our calibrated modules ensure stable low-speed operation on H3C enterprise switches.

Q: Why do third-party SFP modules trigger “Unsupported Transceiver” alarms on H3C devices?

Generic transceivers trigger “Unsupported Transceiver” alarms due to mismatched EEPROM data. HYTOPTODEVICE SFP-FE-LH40-SM1310 modules use H3C-tailored firmware to pass official authentication, achieving zero-alarm and zero-log plug-and-play performance for batch deployment.

Q: Is cross-speed communication achievable between 100BASE-EX and 1000BASE-EX SFP transceivers?

100BASE-EX and 1000BASE-EX modules cannot communicate directly. Both link ends must match in speed and duplex mode to avoid negotiation failure and flapping. HYTOPTODEVICE recommends unified specification deployment for stable long-distance fiber links.

Q: Can HYTOPTODEVICE SFP-FE-LH40-SM1310 modules deliver reliable full 40km long-distance transmission?

Yes. HYTOPTODEVICE SFP-FE-LH40-SM1310 transceivers support stable full 40km transmission on standard single-mode fiber. Each module passes long-distance aging testing with reserved power margin, eliminating packet loss risks for enterprise WAN and cross-building projects.

Q: Does short-distance testing under 1km pose risks for HYTOPTODEVICE 100BASE-EX 40km SFP transceivers?

Short-distance testing under 1km poses high receiver overload risks. Our 100BASE-EX modules feature -8~-2dBm Tx power, -32dBm sensitivity and -8dBm overload threshold. Built for 40km long-haul loss compensation, its high output power easily exceeds receiver saturation in zero-loss short links, causing signal distortion or permanent module burnout. For short-range debugging within 1km, a 5-10dB optical attenuator is mandatory to protect the receiver and ensure stable link status.

Q: Can H3C SFP-FE-LH40-SM1310 compatible 100BASE-EX modules work with multimode fiber (MMF)?

No. 100BASE-EX is a dedicated single-mode SFP module. Multimode fiber brings excessive attenuation and link failure. Always deploy standard G.652/G.657 single-mode fiber to ensure 40km long-distance network stability.

Q: What fiber connector type is standard for HYTOPTODEVICE 100BASE-EX 40km SFP deployment?

This module adopts standard Duplex LC connectors for all formal deployments. It ensures low optical reflectance and stable signal transmission for 40km long-distance single-mode fiber links, meeting mainstream enterprise cabling standards.

Q: What is the standard transmit power range of HYTOPTODEVICE SFP-FE-LH40-SM1310 SFP transceivers?

HYTOPTODEVICE 100BASE-EX modules feature factory-standard Tx power of -8~-2dBm. Optimized for 40km single-mode transmission, the power range balances long-haul loss compensation and short-link overload control for stable enterprise networking.

Q: What receiver sensitivity can users expect from our 100BASE-EX 40km optical transceivers?

Our 100BASE-EX SFP modules deliver -32dBm high receiver sensitivity. The high-performance PIN receiver captures weak signals effectively in 40km long-distance links, reducing bit errors and ensuring stable remote network operation.

Q: How to calculate the accurate optical power budget and safe link attenuation for HYTOPTODEVICE 100BASE-EX 40km SFP links?

This HYTOPTODEVICE 100BASE-EX module provides a 24dB power budget, calculated as max Tx (-8dBm) minus min Rx sensitivity (-32dBm). At 1310nm, standard single-mode fiber attenuates ~0.35dB/km. Total link loss (fiber + splice + connector) must stay below 24dB. Reserve 3–5dB safety margin in formal projects to avoid bit errors and receiver overload.

HYTOPTODEVICE supplies factory-direct H3C SFP-FE-LH40-SM1310 compatible SFP modules. This 100BASE-EX 1310nm 40km single-mode transceiver supports DDM monitoring, delivering stable 100Mbps long-distance fiber links for H3C network deployment, bulk wholesale and enterprise large-scale procurement.

NO.	Brand	Compatible P/N	Transceiver Type
1	Cisco	GLC-FE-100EX	SFP-MM31-2LD
2	H3C	SFP-FE-LH40-SM1310	SFP-M31-10LD
3	HPE（H3C）	JD090A	SFP-M55-80LD
4	Juniper	EX-SFP-1FE-LX40K	SFP-M55-1BLD
5	Brocade	E1MG-100FX-LR-OM	SFP-M55-1CLD
6	Dell	GP-SFP2-1E-C
7	Extreme Networks	MGBIC-LX-40
8	Foundry Networks	E1MG-100FX-LR

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Description

Bulk Wholesale H3C SFP-FE-LH40-SM1310 Compatible 100BASE-EX SFP Module, 1310nm 40km SMF Factory Supply | HYTOPTODEVICE

Product Overview

HYTOPTODEVICE H3C SFP-FE-LH40-SM1310 compatible SFP is a hot-swappable transceiver for H3C network systems. It adopts professional FP laser + PIN receiver solution, operating at 1310nm wavelength. It stably supports up to 40km transmission over standard single-mode fiber via Duplex LC connectors, fully matching H3C official electrical and optical specifications.

Every module undergoes independent individual testing to ensure full compatibility with H3C switches, routers, servers and network interface cards (NICs). With low power consumption and plug-and-play design, it fits ISP fast Ethernet links, enterprise LAN/SAN and data center network deployment, serving as a reliable bulk replacement solution for enterprise network upgrades and engineering projects.

Key Technical Specifications

H3C Compatible	SFP-FE-LH40-SM1310	Vendor Name	HYTOPTODEVICE
Form Factor	SFP	Max Data Rate	100Mbps
Wavelength	1310nm	Max Distance	40KM
Connector	Duplex LC	Transmitter Type	FP 1310nm
Cable Type	SMF	Receiver Type	PIN
TX Power	-8~-2dBm	Receiver Sensitivity	< -32.0dBm
Power Consumption	≤1W	Receiver Overload	-8.0dBm
Protocols	IEEE802.3ab, GR-468, MSA Compliant	Operation Temperature	0 to 70°C (32 to 158°F)

For detailed technical specifications, please refer to the Datasheet

Usage Guidelines & Best Practices

Fiber & Port Matching

Use standard G.652.D duplex single-mode fiber (SMF) with LC-PC/UPC connectors. Multimode fiber is not supported and will fail to reach 40km. Ensure the SFP port supports 100Mbps mode before insertion.
Installation & Hot-Swap Rules

Supports MSA-compliant hot-swapping. Insert/remove gently without powering down the device. Keep dust caps on unused LC ports and avoid frequent re-plugging.
Link Loss Budget

Offers a 24dB link budget for 40km reach (including connectors/splices). If link flapping occurs, inspect and clean optical interfaces.
Operating Environment

Commercial grade: 0°C to 70°C in indoor environments. Keep away from extreme heat, moisture, and dust for long-term stability.
Real-Time Monitoring (DDM)

Use integrated SFF-8472 DDM to monitor Tx/Rx power, temperature, and voltage in real time to prevent sudden outages.
Optical Attenuation (Crucial)

Never direct-connect! Since Tx reaches up to -2 dBm, install a 5–10 dB inline attenuator at the Rx port during lab/short-link testing to keep input power below -8 dBm and prevent receiver burnout.

For detailed operation instructions, please refer to the User Guide.

Full Compatibility List & Supported Network Hardware

1. Supported Hardware & Firmware

This SFP-FE-LH40-SM1310 compatible SFP uses tuned firmware matching H3C authentication rules. It supports plug-and-play, zero-alarm and zero-log operation on mainstream H3C switches, routers and firewalls, ideal for long-distance network deployment and batch module replacement.

H3C S5120 / S5560 / S6520 Series Enterprise Switches, Servers & NICs
H3C MSR Series Enterprise Routers & Security Gateways
H3C Intelligent Access & Aggregation Layer Network Devices
All H3C equipment with 100M/1G dual-rate SFP ports supporting 100BASE-EX standard

2. Multi-Brand Cross Compatibility

This SFP Module complies with universal MSA standards for stable multi-brand interoperation. Custom firmware is available for mixed-vendor network SFP Module bulk deployment and procurement

3. Free Value-Added Services

We offer exclusive free value-added services for all sfp modules to reduce your project deployment and maintenance costs.

Custom firmware for multi-device compatibility
Free sample testing before bulk orders
Complete test reports for project acceptance
Strict batch consistency quality control
Cost-effective wholesale for large-scale deployment

Free custom EEPROM programming for special and legacy network environments

Primary Application Scenarios

Cross-building, campus and enterprise 100Mbps long-distance fiber links
Enterprise WAN remote interconnection and branch office network deployment
Legacy H3C fast Ethernet network renovation and batch module replacement
ISP fast Ethernet links, enterprise LAN/SAN and data center optical networking
Long-distance structured cabling for enterprises and system integrator bulk supply

Connectivity Solutions(Applications)

Deploy paired H3C compatible SFP Module with G.652.D single-mode fiber to establish stable 40km 100Mbps point-to-point links for campus and enterprise network construction.

The Core Feature

1. Low-Power Data Center Efficient Connectivity

With ultra-low power consumption below 1W, this 100BASE-EX SFP Module provides stable, cost-effective Fast Ethernet connectivity. It is an economical solution for enterprise LAN, SAN and data center Ethernet applications.

cost-effective 100BASE-EX 40KM replacement module,factory direct SFP transceiver bulk supply

2.Verified Host Interoperability for Devices

Every module is fully tested on target H3C switches for reliable interoperability. Custom EEPROM firmware matches official specs, enabling plug-and-play operation with zero alarms and zero logs to cut on-site maintenance costs.Specific Compatibility Video available upon request.

3.Rigorous Testing, Uncompromising Reliability

100% factory full testing ensures consistent batch quality. It is a high-cost-performance replacement for enterprise long-distance network bulk procurement and upgrade projects.

HYTOPTODEVICE MSA Compliant Replacement 100BASE-EX SFP Optical Transceiver Full Tested

FAQ

Q1: Can HYTOPTODEVICE SFP-FE-LH40-SM1310 100BASE-EX SFP modules run on 10G/40G switch ports with reduced speed?

A: HYTOPTODEVICE 100BASE-EX modules only work on 100M/1G dual-rate SFP ports with speed adaptation. They cannot run on 10G/40G dedicated ports due to different hardware protocols. Our calibrated modules ensure stable low-speed operation on H3C enterprise switches.

Q2: Why do third-party SFP modules trigger “Unsupported Transceiver” alarms on H3C devices?

A: Generic transceivers trigger “Unsupported Transceiver” alarms due to mismatched EEPROM data. HYTOPTODEVICE SFP-FE-LH40-SM1310 modules use H3C-tailored firmware to pass official authentication, achieving zero-alarm and zero-log plug-and-play performance for batch deployment.

Q3: Is cross-speed communication achievable between 100BASE-EX and 1000BASE-EX SFP transceivers?

A: 100BASE-EX and 1000BASE-EX modules cannot communicate directly. Both link ends must match in speed and duplex mode to avoid negotiation failure and flapping. HYTOPTODEVICE recommends unified specification deployment for stable long-distance fiber links.

Q4: Can HYTOPTODEVICE SFP-FE-LH40-SM1310 modules deliver reliable full 40km long-distance transmission?

A: Yes. HYTOPTODEVICE SFP-FE-LH40-SM1310 transceivers support stable full 40km transmission on standard single-mode fiber. Each module passes long-distance aging testing with reserved power margin, eliminating packet loss risks for enterprise WAN and cross-building projects.

Q5: Does short-distance testing under 1km pose risks for HYTOPTODEVICE 100BASE-EX 40km SFP transceivers?

A: Short-distance testing under 1km poses high receiver overload risks. Our 100BASE-EX modules feature -8~-2dBm Tx power, -32dBm sensitivity and -8dBm overload threshold. Built for 40km long-haul loss compensation, its high output power easily exceeds receiver saturation in zero-loss short links, causing signal distortion or permanent module burnout. For short-range debugging within 1km, a 5-10dB optical attenuator is mandatory to protect the receiver and ensure stable link status.

Q6: Can H3C SFP-FE-LH40-SM1310 compatible 100BASE-EX modules work with multimode fiber (MMF)?

A: No. 100BASE-EX is a dedicated single-mode SFP module. Multimode fiber brings excessive attenuation and link failure. Always deploy standard G.652/G.657 single-mode fiber to ensure 40km long-distance network stability.

Q7: What fiber connector type is standard for HYTOPTODEVICE 100BASE-EX 40km SFP deployment?

A: This module adopts standard Duplex LC connectors for all formal deployments. It ensures low optical reflectance and stable signal transmission for 40km long-distance single-mode fiber links, meeting mainstream enterprise cabling standards.

Q8: What is the standard transmit power range of HYTOPTODEVICE SFP-FE-LH40-SM1310 SFP transceivers?

A: HYTOPTODEVICE 100BASE-EX modules feature factory-standard Tx power of -8~-2dBm. Optimized for 40km single-mode transmission, the power range balances long-haul loss compensation and short-link overload control for stable enterprise networking.

Q9: What receiver sensitivity can users expect from our 100BASE-EX 40km optical transceivers?

A: Our 100BASE-EX SFP modules deliver -32dBm high receiver sensitivity. The high-performance PIN receiver captures weak signals effectively in 40km long-distance links, reducing bit errors and ensuring stable remote network operation.

Q10: How to calculate the accurate optical power budget and safe link attenuation for HYTOPTODEVICE 100BASE-EX 40km SFP links?

A: This HYTOPTODEVICE 100BASE-EX module provides a 24dB power budget, calculated as max Tx (-8dBm) minus min Rx sensitivity (-32dBm). At 1310nm, standard single-mode fiber attenuates ~0.35dB/km. Total link loss (fiber + splice + connector) must stay below 24dB. Reserve 3–5dB safety margin in formal projects to avoid bit errors and receiver overload.

Q11: Why do network bit errors and packet loss occur despite normal optical power readings?

A: Normal optical power with packet loss usually stems from port negotiation mismatch, dirty interfaces, poor fiber quality or electromagnetic interference. Not module quality issues. Fix port speed/duplex manually and clean ports to resolve abnormal network errors efficiently.

Q12: What are the core differences between 100BASE-EX (40km) and 100BASE-ZX (80km) SFP modules?

A: The primary differences between 100BASE-EX and 100BASE-ZX lie in transmission distance and laser type. Our 100BASE-EX modules adopt FP/DFB laser with 1310nm wavelength, supporting stable transmission up to 40km for campus and urban cross-building networking. By contrast, 100BASE-ZX modules adopt high-power DFB lasers and 1550nm low-attenuation wavelength, enabling ultra-long transmission up to 80km for cross-city and long-distance WAN networking.

Packaging & Custom OEM Solutions

Each sfp module is individually sealed in ESD-safe anti-static packaging and ready for immediate shipment. For high-volume distributors, wholesalers, and system integrators, we offer flexible OEM programs—including custom logos, private labeling, and branded packaging—to help you build and protect your own brand.

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.

Up to 70% cost savings vs OEM, transparent pricing & flexible bulk rates, supported quality returns
100% real-device compatible with Cisco, Huawei,Dell,Juniper, and Arista
ISO 9001:2015 Shenzhen factory, full lineup: 1.25G/10G/25G/40G/100G/200G/400G/800G/1.6T transceivers
Ample stock, fast global DHL/FedEx shipping in 3–5 working days
Free pre-sales engineering support for custom EEPROM & private label firmware
Real switch test videos available for pre-purchase review; inspection & shipping videos provided per order

“Phenomenal performance. We deployed 200 HYTOPTODEVICE SFP modules to replace Cisco OEMs in our backbone network. Result? Zero compatibility issues and a 60% reduction in costs. Highly recommended for mission-critical networks."— Senior Network Engineer, Regional Telecom, Australia

Quality Certification & Compliance

At HYTOPTODEVICE, our quality commitment is backed by industry-standard validations. From fiber optical transceiver manufacturing to final visual inspection, from IQC、IPQC、FQC to OQC, 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.