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The Generic SFP1G-ZX-55-I Compatible LINK-PP module is a high-performance industrial SFP transceiver module designed for 1.25Gbps Gigabit Ethernet and Fiber Channel long-haul backbone networks. Operating at a 1550nm wavelength over single-mode fiber, it features a duplex LC interface, supports up to 80km transmission, and includes integrated digital diagnostic monitoring for optimized network management.
| Generic Part Number | SFP1G-ZX-55-I | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1550nm | Max Cable Distance | 80km |
| Connector | Duplex LC | Media | SMF |
| Transmitter Type |
DFB | Receiver Type |
PIN |
| TX Power | 0 to +5dBm | RX Power | -26 to -1dBm |
| Receiver Sensitivity | -26dBm | DOM Support | Yes |
| Operating Temperature Range |
-40 to 85°C | Protocols |
SFF-8472 MSA Compliant, IEEE 802.3ah-2004 |
This optical transceiver offers exceptional reliability with its industrial-grade wide temperature tolerance, operating flawlessly from -40°C to +85°C. Its integrated DFB laser provides high dispersion tolerance, combined with an advanced optical receiver to ensure robust signal integrity and stable data transmission across long-distance networks.
Engineered as a hot-pluggable Small Form-factor Pluggable transceiver, this module strictly complies with the SFP MSA agreement and IEEE 802.3ah specifications, delivering a cost-effective solution for high-speed fiber-optic communication infrastructures.
Tailored for automation control systems and industrial networking, this module provides seamless, continuous 1.25G fiber connectivity, guaranteeing real-time, low-latency transmission for critical data and control signals in harsh operating environments.
Utilizing a 1550nm center wavelength, the module leverages the lowest attenuation characteristics of single-mode fiber. Combined with advanced laser technology, it suppresses chromatic dispersion to maintain optimal signal quality over extended link distances.
Delivering an extensive reach of up to 80 kilometers, this SFP transceiver is perfectly suited for regional backbone architectures, remote monitoring systems, and long-range link extensions without requiring expensive intermediate repeater equipment.
Equipped with a standardized duplex LC optical connector, the module offers a compact form factor, precise alignment, and easy push-pull installation, supporting high-density port configurations while significantly minimizing connection loss.
Featuring built-in Digital Optical Monitoring compliant with SFF-8472, the module enables network administrators to perform real-time tracking of critical operating metrics, including internal temperature, supply voltage, laser bias, and optical power.
This LINK-PP transceiver complies with major international regulatory standards, ensuring full RoHS environmental compliance and meeting Class 1 laser safety standards for safe network operations.
Every single shipped module undergoes an exhaustive quality assurance testing process, including full-temperature aging and thorough optical parameter validation, ensuring flawless field performance and zero-defect deployment.
Manufactured in state-of-the-art facilities certified to ISO9001 quality and ISO14001 environmental management systems, this transceiver guarantees consistent manufacturing quality and high long-term operational reliability.
The module undergoes rigorous interoperability matrix testing to ensure seamless compatibility and immediate plug-and-play functionality across a wide range of major enterprise and industrial host equipment.
Our multi-stage technical testing process comprehensively validates each transceiver's hardware performance under challenging conditions to guarantee ultimate system stability.
Measures center wavelength and side-mode suppression ratio to guarantee precise long-haul optical performance.
Evaluates optical transmitter signal quality, ensuring high extinction ratios and low waveform jitter.
Conducts full-load traffic testing to confirm error-free data transmission without packet drop issues.
Validates stable optical characteristics during thermal cycling from -40°C up to +85°C.
We utilize optimized warehouse workflows and robust transit solutions to ensure your optical modules arrive safely and on schedule.
Individual anti-static ESD bags protect sensitive components from electrical discharge.
Custom cushioned blisters and heavy-duty outer boxes absorb severe transport impacts.
Large stock levels ensure rapid verification and immediate dispatch of standard orders.
Partnered with premier international couriers to guarantee fast, worldwide door-to-door delivery.
For deployment, align the module with the host SFP slot and slide it in firmly. Connect the duplex LC single-mode fiber patch cord. For short-distance testing, install an optical attenuator to prevent receiver damage.
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Professional technical guidance to help customers select the most suitable SFP1G-ZX-55-I modules based on network architecture and application requirements.
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
Find quick answers to frequently asked technical questions regarding the Generic SFP1G-ZX-55-I Compatible LINK-PP industrial SFP transceiver module.
Compatible | Generic | Generic | Generic | Generic | Generic | Generic |
Data Rate (Max) | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps |
Wavelength | 1550nm | 1550nm | 1550nm | 1550nm | 1310nm | 1310nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 80km | 160km | 120km | 100km | 40km | 10km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
TX Power | 0 to +5dBm | 0 to +5dBm | 0 to +5dBm | 0 to +5dBm | -5 to 0dBm | -9 to 0dBm |
Receiver Sensitivity | -26dBm | -32dBm | -28dBm | -28dBm | -23 to -1dBm | -23dBm |
Operating Temperature | -40 to 85°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | -40 to 85°C | -40 to 85°C |
Vendor Name | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | DFB | DFB | DFB | DFB | DFB | FP |
Receiver Type | PIN | APD | PIN | PIN | PIN | PIN |
DOM Support | Yes | Yes | Yes | Yes | Yes | Yes |
Protocols | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: Hey, we run a mix of Juniper and Arista switches in our core network. Will this 1.25G SFP module work natively without throwing unapproved transceiver errors? By N***g on 2026-04-09
A: Absolutely! This module is strictly SFF-8472 MSA compliant and fully compatible with major OEM brands like Juniper, Arista, Cisco, and Mikrotik. It’s true plug-and-play, so your equipment will recognize it instantly without any "unsupported transceiver" warnings. By admin on 2026-04-09
Q: We need to install these in outdoor telecom cabinets where winters get brutal. Does this module actually hold up to sub-zero temperatures? By D***l on 2026-03-08
A: Yes, this is a genuine industrial-grade optical transceiver. It is purpose-built to operate reliably in harsh outdoor and non-climate-controlled environments, supporting an extreme temperature range from -40°C to +85°C (-40°F to 185°F) with zero signal degradation. By admin on 2026-03-08
Q: Just to confirm before ordering, what kind of fiber patch cables do I need to connect this 80km link? By A***r on 2025-10-19
A: You will need Single-Mode Fiber (SMF) patch cables terminated with Duplex LC connectors. Since the module transmits at a 1550nm center wavelength, standard 9/125µm SMF is perfectly optimized for your 80km long-haul transmission. By admin on 2025-10-19
Q: Does this transceiver support real-time monitoring? Our network engineers need to track optical power and temp remotely. By S***s on 2025-07-20
A: Yes, it features built-in Digital Optical Monitoring (DOM / DDM) fully compliant with IEEE 802.3ah and SFF-8472 protocols. Your datacenter operations team can seamlessly monitor real-time metrics like Tx/Rx power, internal temperature, and laser bias right through your switch's management interface. By admin on 2025-07-20
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