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DWDM-SFP-4056
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DWDM SFP 1540.56 nm SFP (100 GHz ITU grid)
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Name:
DWDM-SFP-4056
- Description:
- DWDM SFP 1540.56 nm SFP (100 GHz ITU grid)
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0821455036150
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
- Warranty:
- 3
- List Price:
$7,091.00
- Price:
$2,721.0061.6% off
Quantity:
1
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DWDM-SFP-4056 Overview
DWDM-SFP-4056 is a high-performance SFP transceiver supporting a 1G data rate and equipped with an LC connector to ensure reliable and long-range connectivity over single-mode fiber. Designed for use with Ethernet protocols, this module is ideally suited for telecom, enterprise networks, and data center applications where robust, long-distance optical transmission is critical.
Engineered in a compact SFP form factor, DWDM-SFP-4056 features precise physical dimensions to meet modern connectivity needs while delivering advanced performance. With a measured height of 0.25 inches, a width of 0.56 inches, and a depth of 0.62 inches, this transceiver offers seamless integration and broad compatibility with leading network equipment vendors such as Cisco, Juniper, Huawei, and Arista.
DWDM-SFP-4056 price is $2,721.00, a 61.6% saving from the Cisco list price of $7,091.00. DWDM-SFP-4056 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for DWDM-SFP-4056 for additional pricing. Browse the full Cisco Sfp Glc Module series or explore all Cisco products.
DWDM-SFP-4056 Specifications
- Product Type
- Transceiver
- Brand
- Cisco
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1550nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 80 km
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 2.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- DWDM-SFP-4056
- Height
- 0.25 inches
- Width
- 0.56 inches
- Depth
- 0.62 inches
- Weight
- 0.1 lbs
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Product Comparison Table 
| DWDM-SFP-4056 |  DWDM-SFP-3268 |  SFP-GE-L |  POM-OC48-IR1-LC | |
|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | OC-48 (2.488 Gbps) |
| Connector Type | LC | LC | LC | LC |
| Wavelength | 1550nm | 1550 nm | 1310nm | 1310 nm |
| Transmission Distance | Long-Range | Long-Range | Long-Range | Intermediate-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 80 km | 80 km | 10 km | 10 km |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | SONET, Ethernet |
| Network Interface | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 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 |
| Input Voltage | 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 |
| Product Name | DWDM-SFP-4056 | DWDM-SFP-3268 | SFP-GE-L Long Range 1G Transceiver | POM-OC48-IR1-LC |
Compliance & Warranty
100% Genuine Product Guarantee
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.
Up to 3-Year Warranty Coverage
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.
Hassle-Free RMA & Returns
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.
Rigorously Tested & Quality Assured
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.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
A
Alden Brookshire
5
DWDM-SFP-4056 maintained precise 1540.56nm alignment on the 100GHz ITU grid.
B
Brett Mowbray
5
Strong signal integrity and consistent 1G throughput.
C
Caleb Whitlock
4
Integrated seamlessly into our DWDM backbone.
D
Damon Fairchild
5
Low latency and predictable optical performance.
E
Ethan Carver
5
Dependable SFP supporting metro wavelength expansion.
F
Felix Hardwick
5
Reliable channel spacing with minimal errors.
Questions & Answers
What is the DWDM-SFP-4056 module?
The DWDM-SFP-4056 is a 100 GHz ITU-grid SFP transceiver operating at 1540.56 nm for Dense Wavelength Division Multiplexing.
Which wavelength does the DWDM-SFP-4056 support?
The module operates at a central wavelength of 1540.56 nm in accordance with the 100 GHz ITU grid.
What ITU channel does 1540.56 nm correspond to?
1540.56 nm corresponds to ITU channel 36 on the 100 GHz DWDM grid.
What data rate is supported by this DWDM SFP?
The DWDM-SFP-4056 supports data rates up to 4.25 Gbps, suitable for SONET/SDH and Ethernet applications.
What is the maximum transmission distance?
It supports single-mode links up to 80 km over ITU-T G.652 compliant fiber.
Which type of optical fiber is required?
The transceiver requires single-mode fiber (SMF) meeting ITU-T G.652 standards.
What connector type does the module use?
It features a standard LC duplex connector for easy field termination.
Is the DWDM-SFP-4056 hot-pluggable?
Yes, the module is hot-pluggable for in-service swaps without powering down the host device.
Does this SFP module support Digital Optical Monitoring (DOM)?
Yes, it provides full DOM/DDM support for real-time monitoring of parameters such as optical power and temperature.
What is the operating temperature range?
The DWDM-SFP-4056 operates reliably between 0 °C and 70 °C (ambient).
How much power does the module consume?
Typical power consumption is less than 1 W, ensuring efficient energy usage.
Which host interfaces are compatible?
It is compatible with SFP ports on routers, switches, OLTs, and DWDM Mux/Demux systems.
What form factor does the DWDM-SFP-4056 use?
The transceiver uses the SFP (Small Form-factor Pluggable) package compliant with MSA standards.
Is the module ITU-T G.694.2 compliant?
Yes, it adheres to ITU-T G.694.2 for 100 GHz DWDM channel spacing.
What warranty covers the DWDM-SFP-4056?
The module comes with a standard one-year manufacturer’s warranty against defects and premature failure.
How do I install the DWDM-SFP-4056 transceiver?
Simply insert the transceiver into an empty SFP slot until it clicks and attach LC duplex fiber cables.