| NO. | Brand | Compatible P/N | Remarks |
| 1 | Cisco | SFP-GE-Z | |
| 2 | Cisco | GLC-ZX-SMD | |
| 3 | Cisco | GLC-ZX-SM-RGD | Industrial Tem |
| 4 | Arista Networks | SFP-1G-EX-80 | |
| 5 | H3C | SFP-GE-LH80-SM1550 | |
| 6 | Juniper | EX-SFP-1GE-LX70 | |
| 7 | Huawei | S-SFP-GE-LH80-SM1550 | |
| 8 | Brocade | E1MG-LHA |
| H3C Compatible | SFP-GE-LH80-SM1550 | Vendor Name | HYTOPTODEVICE |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1550nm | Max Distance | 80km |
| Connector | Duplex LC | Transmitter Type | 1550nm DFB |
| Cable Type | SMF | Receiver Type | PIN |
| TX Power | 0~5dBm | Receiver Sensitivity | < -26.0dBm |
| Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | Operation Temperature | 0°C 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 80km optical transceivers are fully tested and certified to work seamlessly with the H3C Networks equipments:
Managed Campus Platforms: S5120, S5130, S5140, S5500, S5560, S5700 Series
High-Density Core Chassis: S7500, S7500X Modular Chassis Series, S6800 Data Center Series
Note: When introducing this 1G module into 10G SFP+ or 25G SFP28 interface ports, you must enter the interface console configuration and manually force the operating line speed down to match using the command: speed 1000.
MSR Edge Routers: MSR 2600, MSR 3600, MSR 5600 Series
SecPath Hardware Firewalls: SecPath F1000, F5000 Series
Main Application Scenarios of Fiber Connection Module
Metropolitan Area Network (MAN) Ring Interconnects: Bridging geographically isolated municipal offices, regional hospital clusters, or satellite enterprise zones distributed across town lines up to 80km apart.
Smart City & Regional IP Video Transport: Aggregating high-volume video surveillance feeds or regional traffic telemetry arrays from remote roadside locations back to a centralized cloud data center switch matrix.
Data Center Interconnect (DCI) Core Extensions: Creating a secondary, physically isolated 1G control line, out-of-band management loop, or replication channel between primary and backup storage facilities.



Q1: Can the H3C SFP-GE-LH80-SM1550 be used in 10G SFP+ port slots?
A1: Yes, absolutely. The module relies on a native 1000BASE-X fiber protocol framework that 10G SFP+ slots natively support. To initialize the link on an H3C Comware platform, access the interface configuration mode via the CLI and manually drop the line rate using the command: speed 1000.
Q2: Does this 80km module require an inline optical attenuator during installation?
A2: Yes, an inline attenuator is mandatory for short fiber links (under 25-30km). Because this transceiver uses an amplified 1550nm transmitter paired with an extra-sensitive APD receiver to push light through 80km, short-distance testing or short-haul deployment without a 10dB inline optical attenuator will risk overloading and permanently burning out the delicate photodiode receiver circuit.
Q3: What is the main difference between H3C SFP-GE-LH40-SM1310 and SFP-GE-LH80-SM1550? A3: Wavelength, reach, and receiver components. The LH40 module operates at a 1310nm wavelength and is built to clear standard distances up to 40km using a PIN receiver. The LH80 shifts to a 1550nm laser engine (where single-mode glass has significantly lower signal loss) and implements a high-gain APD receiver to stretch the loop up to 80km.
Q4: Can this module operate over legacy Multi-Mode Fiber (MMF) networks?
A4: No. The SFP-GE-LH80-SM1550 is engineered strictly for Single-Mode Fiber (SMF). Its 1550nm laser beam is highly focused; attempting to route it down multi-mode cabling will cause massive modal dispersion, rendering the link completely unusable.
Q5: Can this module down-negotiate to Fast Ethernet (100Mbps) speeds?
A5: No. The SFP-GE-LH80-SM1550 operates strictly as a fixed-rate 1Gbps module. It does not possess multi-rate capability to negotiate down to 10M or 100M speeds. The remote network equipment at the opposing end of your fiber line must also be a fixed 1G 1550nm long-haul optic.
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.






