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DWDM-SFP-5979-120-C
1000BASE-DWDM SFP 1559.79nm 120KM Cisco Compatible
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DWDM-SFP-5979-120-C is a DWDM SFP transceiver designed to provide reliable 1G data rate operation for extended-range optical communications. This module features an LC connector and utilizes single-mode fiber, making it well suited for long-haul data transmission in telecom and enterprise networks.
Engineered for high-performance applications, DWDM-SFP-5979-120-C supports Ethernet protocols in a compact SFP form factor, with a maximum transmission distance of 120 km at a wavelength centered in the C-band. Its industry-standard design and broad compatibility with major platforms such as Cisco, Juniper, Huawei, and Arista make it ideal for various data center, telecom, and enterprise deployments.
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| DWDM-SFP-5979-120-C |  DWDM-SFP-5655-120-C |  DWDM-SFP-3977-120-C |  DWDM-SFP-3268-C |  DWDM-SFP-5252-120-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Data Rate | 1G | 1G | 1G | 1G | 1G |
| Connector Type | LC | LC | LC | LC | LC |
| Wavelength | 1550 nm | 1530-1565 nm | 1550nm | 1550 nm | 1550 nm |
| Transmission Distance | Extended-Range | Long-Range | Long-Range | Long-Range | Extended-Range |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Max Distance | 120 km | 120 km | 80 km | 80 km | 120 km |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet | Ethernet |
| Network Interface | Fiber | Ethernet | Fiber | Fiber | Fiber |
| Power Consumption | N/A | 2.5 W | N/A | 2.5 W | 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, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista |
| Product Name | DWDM-SFP-5979-120-C | DWDM-SFP-5655-120-C | DWDM-SFP-3977-120-C | DWDM-SFP-3268-C | DWDM-SFP-5252-120-C |
| Height | N/A | 0.35 inches | N/A | 0.25 inches | 0.65 in |
| Width | N/A | 0.87 inches | N/A | 0.60 inches | 0.72 in |
| Depth | N/A | 1.15 inches | N/A | 0.30 inches | 1.00 in |
| Weight | N/A | 0.2 lbs | N/A | 0.06 lbs | 0.05 lbs |
Flawless 1559.79nm performance across 120KM. Wavelength precision is outstanding, making it a perfect fit for our dense DWDM grid. Very satisfied with the stability.
Reliable ultra-long-haul signaling. This Cisco compatible module provides excellent throughput and a strong link budget. A cost-effective alternative for our backbone infrastructure.
Consistent 120KM reach with zero signal degradation. Recognized instantly by our core switches. The 1559.79nm channel is efficient and highly dependable.
Professional 1559.79nm transceivers. Easy deployment and great power levels. A trustworthy solution for expanding our fiber capacity over extreme distances without repeaters.
Superior build quality and performance. These transceivers deliver steady signal integrity and full compatibility for our regional transport network. Outstanding value and reach.
The DWDM-SFP-5979-120-C is a 1000BASE-DWDM SFP transceiver module operating at 1559.79 nm wavelength with a 120 km reach, fully Cisco compatible.
The module operates at a fixed 1559.79 nm wavelength, optimized for dense wavelength division multiplexing (DWDM) networks.
It supports a maximum transmission distance of up to 120 km over single-mode fiber.
Yes. It is fully compatible with Cisco switches and routers that support 1000BASE-DWDM SFP modules.
It works with a wide range of Cisco OEM and third-party switches and routers that accept 1000BASE-DWDM SFP form factors.
The DWDM-SFP-5979-120-C supports a 1.25 Gbps (gigabit Ethernet) data rate.
Yes. The module is hot-swappable, allowing installation or removal without powering down the host device.
It uses a standard LC duplex optical connector for single-mode fiber links.
Typical power consumption is under 1 W, ensuring low energy use in high-density installations.
Yes. It features SFF-8472 compliant DOM, providing real-time monitoring of optical power, temperature, and voltage.
The module operates reliably in a commercial temperature range from 0 °C to 70 °C.
DWDM technology increases fiber capacity by multiplexing multiple wavelengths onto a single fiber strand, enabling scalable bandwidth expansion.
Simply insert the module into an available SFP slot until it clicks; the host device auto-detects and negotiates the link.
It includes a limited lifetime warranty covering manufacturing defects and performance compliance.
Each module ships in an individual ESD-safe tray and protective box to prevent damage during transit.
Use ITU-T compliant MUX/DEMUX, maintain proper link budget, keep connectors clean, and adhere to single-mode fiber specifications.
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