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DWDM-SFP-4056-120-C
1000BASE-DWDM SFP 1540.56nm 120KM Cisco Compatible
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Ten years serving buyers who audit their vendors. From federal agencies to 20,000+ enterprise clients worldwide.
DWDM-SFP-4056-120-C is a high-performance SFP transceiver engineered for DWDM applications, offering a reliable 1G data rate with an LC connector interface. It is designed to deliver extended-range transmission over single-mode fiber for distances up to 120 km, supporting Ethernet protocols in high-demand environments.
Optimized for data centers, enterprise networks, and telecom infrastructures, this compact SFP module meets rigorous form factor and physical dimension standards while ensuring broad compatibility with leading vendors such as Cisco, Juniper, Huawei, and Arista. Its robust design and precise engineering make it an ideal solution for modern optical network deployments.
DWDM-SFP-4056-120-C price is is available on request. Get immediate quote.
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| DWDM-SFP-4056-120-C |  DWDM-SFP-5092-C |  DWDM-SFP-3898-C |  DWDM-SFP-4532-120-C |  DWDM-SFP-5172-120-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 10G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1550 ± 5nm | 1550 nm | 1550 nm | 1558 nm |
| Transmission Distance | Extended-Range | Long-Range | Long-Range | Extended-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 120 km | 80 km | 80 km | 120 km | 80 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet, SONET | Ethernet | Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Fiber |
| 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, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | DWDM-SFP-4056-120-C | DWDM-SFP-5092-C | DWDM-SFP-3898-C | DWDM-SFP-4532-120-C | DWDM-SFP-5172-120-C |
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.
Superior 1540.56nm precision over 120KM. Identified immediately by Cisco routers. Meets all rigorous ISP requirements for stability.
Great long-distance reach. Professional stability for our fiber backbone. Consistent high performance with zero packet loss.
Excellent integrity for 120KM spans. Essential for fiber expansion, offering consistent power and easy switch integration.
Dependable 1540.56nm optics. Low latency and consistent signal power. Solid choice for ultra-long-haul regional data transport.
Tough DWDM transceivers. Wavelength 1540.56nm is stable, ensuring our 120KM mux-demux setup runs without errors.
Outstanding value. Delivers high-end performance and full Cisco compatibility. A staple for our professional networking inventory.
The DWDM-SFP-4056-120-C is fully Cisco compatible and has been validated to operate seamlessly in Cisco switches and routers without any firmware modifications.
This SFP module operates at a precise wavelength of 1540.56 nm (Channel 56) for dense wavelength division multiplexing applications.
The DWDM-SFP-4056-120-C supports single-span transmission up to 120 km over standard single-mode fiber (SMF-28).
Use standard G.652 single-mode fiber with LC connectors to achieve optimal performance and minimal insertion loss.
This SFP module supports a nominal data rate of 1.25 Gbps, fully compliant with the 1000BASE-DWDM specification.
Yes, the module supports hot plugging, allowing insertion or removal without powering down your network equipment.
Simply insert the module into an available SFP slot until it clicks, then verify link status via your switch’s CLI or web interface.
The module is rated for commercial (0 °C to 70 °C) and industrial (–40 °C to 85 °C) temperature ranges, ensuring reliable performance.
Yes, it comes with a minimum one-year limited warranty covering manufacturing defects and premature failure.
DWDM uses tighter channel spacing (0.8 nm) for higher channel density, while CWDM uses wider spacing (20 nm) for cost-effective, low-density applications.
The MTBF is rated at over 1,000,000 hours, ensuring long-term reliability in critical network environments.
It is validated on Cisco Catalyst 2960, 3750, 3850, 4500, 6500 series switches and ISR/ASR routers.
Verify correct wavelength alignment, inspect fiber connectors for dirt or damage, and confirm sufficient optical power budgets via CLI diagnostics.
Yes, it integrates seamlessly with standard DWDM MUX/DEMUX units and ROADMs designed for C-band channels.
This module is available through authorized network equipment distributors and online partners offering genuine, Cisco-compatible optics.
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