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DWDM-SFP-4931-120-C
1000BASE-DWDM SFP 1549.32nm 120KM Cisco Compatible
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DWDM-SFP-4931-120-C is a DWDM SFP transceiver module designed to deliver 10G data rate performance using LC connectors, making it ideal for long-range fiber communications. This compact module features a standard SFP form factor with industry-standard physical dimensions and is engineered to support high-performance DWDM applications in telecommunications and metro networks.
Optimized for versatile deployments, this transceiver supports Ethernet protocols and single-mode fiber, ensuring reliable data transmission over distances of up to 120 km. Its robust design and operational stability across a wide temperature range make it well-suited for use in data centers, enterprise networks, and telecom infrastructures.
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| DWDM-SFP-4931-120-C |  DWDM-SFP-4373-120-C |  DWDM-SFP-4373-C |  DWDM-SFP-5172-C |  DWDM-SFP-3898-120-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 10G | 1G | 10G | 10G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1550 nm | 1550 nm | 1550 nm | 1550 nm |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 120 km | 80 km | 80 km | 80 km | 120 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| Power Consumption | 1.5 W | 3.6W | 3.5 W | 2.0W | 1.5 W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | DWDM-SFP-4931-120-C | DWDM-SFP-4373-120-C | DWDM-SFP-4373-C | DWDM-SFP-5172-C | DWDM-SFP-3898-120-C |
| Height | 0.3 inches | 0.33 inches | 0.30 inches | 0.65 inches | 0.33 inches |
| Width | 0.6 inches | 0.53 inches | 0.72 inches | 1.1 inches | 2.20 inches |
| Depth | 2.0 inches | 2.00 inches | 3.40 inches | 0.8 inches | 0.47 inches |
| Weight | 0.1 lbs | 0.20 lbs | 0.14 lbs | 0.2 lbs | 0.11 lbs |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Impressive 1549.32nm stability. Recognized immediately by Cisco hardware with flawless signal transport and power over 120KM.
Consistent 120KM performance. Top-tier accuracy makes these a perfect fit for dense DWDM mux setups. Satisfied customer.
Excellent 120KM reach and clarity. Professional stability for mission-critical links. Recommended for long-distance fiber networking.
Dependable 120KM optics. 1549.32nm channel is rock-solid. Seamless Cisco hardware compatibility and easy setup.
High-quality SFP for long-range. Wavelength precision is exactly what we need. Exceptional value and reliability.
Steady 1549.32nm signaling at 120KM. Improved network uptime significantly. Trustworthy solution for extreme distance projects.
The DWDM-SFP-4931-120-C is a 1000BASE-DWDM SFP transceiver operating at 1549.32 nm for single-mode fiber, designed for Cisco-compatible networks and long-haul data transmission up to 120 km.
This 1000BASE-DWDM SFP supports optical transmission distances of up to 120 km over single-mode fiber with a standard DWDM link budget.
The module operates at a precise DWDM wavelength of 1549.32 nm, meeting ITU grid specifications for dense wavelength-division multiplexing.
Yes, the DWDM-SFP-4931-120-C is fully Cisco compatible and interoperable with Cisco switches, routers, and DWDM amplifiers.
The transceiver supports a data rate of 1.25 Gbps for Gigabit Ethernet and other serial applications.
It uses an LC duplex connector, compatible with standard single-mode fiber cabling systems.
Single-mode fiber (SMF) with an ITU-T G.652 or G.655 specification is recommended for optimal 120 km performance.
The module operates reliably between 0 °C and 70 °C (Commercial) or –40 °C to 85 °C (Industrial) depending on the model variant.
Ideal applications include long-haul DWDM networks, metro ring extensions, data center interconnects, and telecommunication backbones.
The DWDM-SFP-4931-120-C consumes less than 1 W of power, ensuring energy-efficient operation.
Yes, the module is hot-swappable and can be installed or removed without powering down your switch or router.
It complies with IEEE 802.3z, SFF-8472, ITU-T G.692/G.693, and RoHS environmental standards.
The module offers an MTBF of over 1,000,000 hours, ensuring high reliability in critical network deployments.
Simply insert the module into a compatible SFP port until it clicks, then verify the link status via your Cisco CLI or management interface.
Yes, the module interoperates with other ITU-grid DWDM channels, enabling dense wavelength-division multiplexing in a single fiber.
The DWDM-SFP-4931-120-C comes with a one-year limited warranty covering defects in materials and workmanship.
United States
