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1559.79nm DWDM SFP ensures precise ITU alignment and stable performance.
DWDM-SFP-5979=
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DWDM SFP 1559.79 NM SFP 100 GHZ ITU GRID
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DWDM-SFP-5979=
- Description:
- DWDM SFP 1559.79 NM SFP 100 GHZ ITU GRID
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- Brand:
- Cisco
- GTIN:
- 816678019196
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DWDM-SFP-5979= Overview
DWDM-SFP-5979= is a DWDM SFP transceiver module engineered for reliable data transmission in high-performance networks. It supports a data rate of 1G using an LC connector and is optimized for long-range communication over single-mode fiber.
This compact SFP form factor transceiver leverages dense wavelength division multiplexing technology to meet the stringent demands of modern data centers, enterprise networks, and telecom environments. It is fully compliant with Ethernet and Fibre Channel protocols, making it an ideal solution for scalable network infrastructures.
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DWDM-SFP-5979= Specifications
- Product Type
- Transceiver
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1550 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 80 km
- Supported Protocols
- Ethernet, Fibre Channel
- Network Interface
- Fiber
- Power Consumption
- 3.5W
- 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-5979=
- Height
- 0.5 inches
- Width
- 0.5 inches
- Depth
- 1.5 inches
- Weight
- 0.1 lbs
DWDM-SFP-5979= Use Case
Long-Haul Data Center Interconnect for Cloud Providers
A global cloud services operator deploys DWDM-SFP-5979 (1559.79 nm, 100 GHz ITU grid) modules on two data centers 120 km apart. By leveraging ITU-compliant wavelength spacing and DWDM amplification, the operator achieves 100 Gbps full-duplex connectivity over a single fiber pair without regeneration. Benefit: 60% lower OPEX through simplified amplified links, sub-1 ms latency for real-time workloads, and seamless capacity scaling to meet dynamic cloud demand.
Metro Ethernet Aggregation for Service Providers
A regional telecom provider uses DWDM-SFP-5979 modules to aggregate multiple 10 GbE customer access rings into a 100 GbE DWDM backbone across a 50 km metro fiber loop. The precise 100 GHz channel spacing enables coexistence of legacy and new wavelengths on the same fiber. Benefit: 8× higher port efficiency, 40% reduction in rack space, and rapid service turn-up—driving accelerated revenue from business and residential Ethernet services.
High-Capacity 5G Small-Cell Backhaul
A mobile network operator implements DWDM-SFP-5979 modules in ROADM nodes to backhaul 5G small-cell clusters distributed over a 30–80 km ring. The 1559.79 nm channel provides a dedicated 100 Gbps wavelength per site, ensuring ultra-low jitter and bandwidth reserve for bursty video traffic. Benefit: Guaranteed SLA performance for ultra-reliable low-latency communications, automated wavelength provisioning, and 25% CAPEX savings by reusing existing DWDM infrastructure.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| DWDM-SFP-5979= |  DWDM-SFP-4772= |  GLC-BX-D= |  DWDM-SFP-4134= |  CWDM-SFP-1570= | |
|---|---|---|---|---|---|
| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 1G | 10G | 1G | 10G | 1G |
| Depth | 1.5 inches | 1.5 inches | N/A | 0.5 inches | 1.65 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Height | 0.5 inches | 0.3 inches | N/A | 0.39 inches | 0.55 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 80km | 10 km | 80 km | 80 km |
| Network Interface | Fiber | Fiber | Fiber | Fiber | Ethernet |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 3.5W | 3.5W | N/A | 3.5W | 3.5W |
| Product Name | DWDM-SFP-5979= | DWDM-SFP-4772= | Cisco GLC-BX-D= | DWDM-SFP-4134= | CWDM-SFP-1570= |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet, Fibre Channel | Ethernet, SONET | Ethernet | Ethernet | Ethernet, Fibre Channel |
| Transmission Distance | Long-Range | Extended-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | 1550 nm | 1550nm | 1490nm (Tx) / 1310nm (Rx) | 1528 nm - 1563 nm | 1570nm |
| Weight | 0.1 lbs | 0.04 lbs | N/A | 0.2 lbs | 0.20 lbs |
| Width | 0.5 inches | 0.8 inches | N/A | 0.66 inches | 0.85 inches |
Reviews & Ratings
S
Selena Carter
4
Low-latency, professional-grade module for metro and enterprise networks.
R
Ronan Frost
4
Reliable under full load with minimal errors.
L
Leona Steele
5
Easy deployment and consistent throughput.
D
Damon Hayes
5
Durable optics ideal for critical backbone applications.
Questions & Answers
What is the central wavelength of the DWDM-SFP-5979=?
The DWDM-SFP-5979= operates at a central wavelength of 1559.79 nm.
What data rate does the DWDM-SFP-5979= support?
It supports serial data rates up to 1.25 Gbps.
Which ITU grid spacing does the module use?
It adheres to the 100 GHz ITU-T dense wavelength-division multiplexing grid.
What connector type is used on the DWDM-SFP-5979=?
It uses a standard LC duplex connector.
What type of fiber is required for this DWDM SFP?
The module is designed for single-mode fiber (SMF) deployments.
How far can the DWDM-SFP-5979= transmit data?
It can transmit up to 80 km over standard SMF without inline amplification.
What is the transmitter output power range?
The transmitter output power ranges from –4 to 0 dBm.
What is the receiver sensitivity of this module?
Receiver sensitivity is rated to –24 dBm maximum.
What is the operating temperature range?
Operating temperature range is 0 to 70 °C (32 to 158 °F).
Is the DWDM-SFP-5979= hot-swappable?
Yes, the module is hot-swappable for rapid field installation.
Which devices is the DWDM-SFP-5979= compatible with?
Compatible with any 100 GHz ITU-T DWDM-enabled SFP port from major networking vendors.
How do I install the DWDM-SFP-5979=?
Insert it into an available SFP slot, secure the latch, and connect LC patch cables to SMF.
What applications is the DWDM-SFP-5979= ideal for?
Ideal for metro, long-haul, data center interconnects and other DWDM applications.
What is the typical power consumption of the module?
Power consumption is typically below 1 W during operation.
What is the wavelength accuracy of the DWDM-SFP-5979=?
Wavelength stability is typically ±0.1 nm over the full operating temperature range.
Does the DWDM-SFP-5979= support Digital Diagnostic Monitoring (DDM)?
Yes, it supports DDM for real-time monitoring of power, temperature, voltage and optical performance.
Which ITU channel corresponds to 1559.79 nm?
1559.79 nm corresponds to ITU channel 59 on the 100 GHz grid.