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DWDM-SFP-4931
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DWDM SFP 1549.32nm SFP (100 GHz ITU grid)
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Name:
DWDM-SFP-4931
- Description:
- DWDM SFP 1549.32nm SFP (100 GHz ITU grid)
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 0882658255915
- 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:
$7,174.00
- Price:
$2,654.3963% off
Quantity:
1
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DWDM-SFP-4931 Overview
DWDM-SFP-4931 is a DWDM-enabled SFP transceiver designed for high-performance optical networks. It supports a 10G data rate, uses an LC connector, provides long-range transmission over single-mode fiber, and is engineered to meet the demands of Ethernet, SONET, and other telecom protocols in data centers, enterprise networks, and telecom infrastructures.
DWDM-SFP-4931 features a compact form factor with dimensions optimized for rack-mounted equipment. Its reliable design ensures efficient optical link performance over extended distances, while its strict adherence to industry standards guarantees broad compatibility with leading network equipment manufacturers such as Cisco, Juniper, Huawei, and Arista.
DWDM-SFP-4931 price is $2,654.39, a 63% saving from the Cisco list price of $7,174.00. DWDM-SFP-4931 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for DWDM-SFP-4931 for additional pricing. Browse the full Sfp+ For 3000 Series series or explore all Cisco products.
DWDM-SFP-4931 Specifications
- Product Type
- Transceiver
- Brand
- Cisco
- Form Factor
- SFP
- Data Rate
- 10G
- Connector Type
- LC
- Wavelength
- 1550 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 80 km
- Supported Protocols
- Ethernet, SONET
- Network Interface
- Fiber
- Power Consumption
- 3.6W
- 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-4931
- Height
- 0.16 inches
- Width
- 0.87 inches
- Depth
- 0.94 inches
- Weight
- 0.10 lbs
DWDM-SFP-4931 Use Case
Metro Network Capacity Upgrade with DWDM-SFP-4931 1549.32 nm SFP (100 GHz ITU Grid)
Scenario: An urban metro operator faces bandwidth constraints on existing dark fiber links. Deploying DWDM-SFP-4931 1549.32 nm SFP modules on a 100 GHz ITU grid instantly adds multiple 10 Gbps channels over the same fiber. Benefit: Dramatically increased capacity without new fiber digs, reducing CAPEX by up to 50 % and accelerating new service launches.
High-Performance Data Center Interconnect Using DWDM-SFP-4931 1549.32 nm (100 GHz)
Scenario: A hyperscale data center provider needs reliable 10 Gbps links between sites 80 km apart. Integrating DWDM-SFP-4931 1549.32 nm SFPs on 100 GHz ITU grid simplifies plug-and-play installation, delivers ultra-low latency and high OSNR. Outcome: Scalable DCI with minimal footprint, enhanced redundancy, and reduced OPEX through streamlined optics inventory.
5G Fronthaul Backbone Enhancement via DWDM-SFP-4931 1549.32 nm SFP (100 GHz Grid)
Scenario: A mobile operator upgrades its 5G fronthaul network over legacy metro rings. Deploying DWDM-SFP-4931 1549.32 nm SFPs on a 100 GHz grid transports 10 Gbps per sector seamlessly alongside existing wavelengths. Benefit: Superior spectral efficiency, simplified network management and lower total cost of ownership for high-density 5G deployments.
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Product Comparison Table 
| DWDM-SFP-4931 |  DWDM-SFP-5979 | |
|---|---|---|
| Product Type | Transceiver | Transceiver |
| Form Factor | SFP | SFP |
| Data Rate | 10G | 1G |
| Connector Type | LC | LC |
| Wavelength | 1550 nm | 1550 nm |
| Transmission Distance | Long-Range | Long-Range |
| Fiber Type | Single-mode | Single-mode |
| Max Distance | 80 km | 80 km |
| Supported Protocols | Ethernet, SONET | Ethernet, Fibre Channel |
| Network Interface | Fiber | Fiber |
| Power Consumption | 3.6W | 3.5W |
| Operating Temperature | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V |
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | DWDM-SFP-4931 | DWDM-SFP-5979 |
| Height | 0.16 inches | 0.5 inches |
| Width | 0.87 inches | 0.5 inches |
| Depth | 0.94 inches | 1.5 inches |
| Weight | 0.10 lbs | 0.1 lbs |
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
Arden Whitman
5
DWDM SFP 1549.32nm delivers precise wavelength and consistent performance. Ideal for long-distance backbone networks.
C
Celia Monroe
4
Reliable module with minimal signal loss. Integrates seamlessly into enterprise DWDM systems.
D
Donovan Pierce
4
Stable performance under full network load. Excellent choice for metro networks.
F
Fiona Harlow
5
Professional-grade SFP with dependable throughput and low latency.
G
Gideon Frost
5
Durable optics, easy to maintain, performs reliably across dense wavelength networks.
Questions & Answers
What is the DWDM-SFP-4931 module?
The DWDM-SFP-4931 is a 1549.32 nm 100 GHz ITU-grid DWDM SFP transceiver supporting up to 1.25 Gbps over single-mode fiber.
What wavelength does the DWDM-SFP-4931 operate at?
It operates at a fixed wavelength of 1549.32 nm (ITU channel 31) per ITU-T G.694.2 specifications.
What ITU grid spacing does the DWDM-SFP-4931 use?
It uses a 100 GHz channel spacing in full compliance with the ITU-T 100 GHz DWDM wavelength grid.
What data rate is supported by the DWDM-SFP-4931?
The module supports data rates up to 1.25 Gbps, ideal for 1 Gigabit Ethernet and Fibre Channel applications.
What is the maximum transmission distance of the DWDM-SFP-4931?
It reliably transmits up to 80 km over standard single-mode fiber (OS2) without amplification.
Which fiber type is compatible with the DWDM-SFP-4931?
It is compatible with ITU-T G.652 (OS2) single-mode fiber using duplex LC connectors.
What connector type does the DWDM-SFP-4931 use?
The transceiver features a duplex LC connector interface for straightforward fiber attachment.
Is the DWDM-SFP-4931 hot-swappable?
Yes. It adheres to the SFP MSA specification and can be inserted or removed without powering down the host device.
What is the optical transmit power of the DWDM-SFP-4931?
The typical transmit power ranges from –1 dBm to +4 dBm, ensuring stable long-haul performance.
What is the receiver sensitivity of the DWDM-SFP-4931?
Receiver sensitivity is –24 dBm (max), guaranteeing error-free detection over the specified distance.
What operating temperature range does the DWDM-SFP-4931 support?
It supports a commercial operating temperature range of 0 °C to 70 °C (32 °F to 158 °F).
Which industry standards does the DWDM-SFP-4931 comply with?
It complies with ITU-T G.694.2, SFP MSA/SFF-8472, RoHS, Telcordia GR-63/GR-1089, and IEEE 802.3 standards.
Can I use the DWDM-SFP-4931 with DWDM multiplexers and demultiplexers?
Yes. It integrates seamlessly with DWDM MUX/DEMUX systems for efficient multi-channel signal routing.
What laser safety certifications does the DWDM-SFP-4931 have?
The module is certified as a Class 1 laser product under FDA/CDRH and IEC 60825-1 safety regulations.
What warranty and support are offered for the DWDM-SFP-4931?
It includes a one-year limited warranty plus lifetime technical support and advanced replacement options.
Is the DWDM-SFP-4931 compatible with third-party network equipment?
Yes. It is fully interoperable with any switch, router or DWDM platform that supports MSA-compliant SFP modules.
How do I install the DWDM-SFP-4931 module?
Simply insert the module into an SFP slot until it clicks, connect LC fiber cables, then configure the port for 1549.32 nm operation.