Cisco DWDM-SFP10G-59.79 10G SFP+ Transceiver Module
The Cisco DWDM-SFP10G-59.79 is a fixed-wavelength 10G SFP+ transceiver engineered for dense wavelength division multiplexing (DWDM) transport in enterprise and service provider networks. This DWDM SFP+ module integrates WDM capability directly into Cisco 10 Gigabit Ethernet switches and routers, enabling high-capacity optical networking without external equipment. Operating at 1559.79nm on a 100-GHz ITU channel, it supports OTN data rates and delivers reliable, non-tunable wavelength performance across demanding network environments.
Ideal for network architects deploying multi-wavelength optical infrastructure, this module combines compact form factor with enterprise-grade reliability. With a commercial operating temperature range of 0–70°C and minimal 1.5W power consumption, the DWDM-SFP10G-59.79 maximizes network density while reducing operational costs.
Key Features
- Fixed-wavelength 10GBASE-DWDM optical transceiver at 1559.79nm
- 100-GHz ITU channel spacing for dense wavelength multiplexing
- Non-tunable wavelength design ensures wavelength stability and reliability
- OTN data rate support for advanced optical networking
- Compact SFP+ form factor integrates directly into Cisco switches and routers
- Commercial operating temperature: 0–70°C
- Low power consumption: maximum 1.5W
- 40 available ITU wavelengths across the DWDM-SFP10G suite
Technical Specifications
| Specification |
Value |
| Manufacturer |
Cisco |
| Part Number |
DWDM-SFP10G-59.79 |
| Product Type |
DWDM SFP+ Transceiver Module |
| Wavelength |
1559.79 nm |
| Channel Spacing |
100 GHz (ITU) |
| Data Rate |
10 Gigabit Ethernet (OTN) |
| Wavelength Type |
Fixed, Non-tunable |
| Operating Temperature |
0–70°C (Commercial) |
| Power Consumption |
1.5 W (Maximum) |
| Form Factor |
SFP+ (Small Form-Factor Pluggable) |
| Available Wavelengths in Suite |
40 ITU 100-GHz channels |
Frequently Asked Questions
What is a DWDM SFP+ transceiver and how does it work?
A DWDM SFP+ transceiver is a compact optical module that transmits and receives 10 Gigabit Ethernet signals over a single fiber strand at a specific wavelength. Dense wavelength division multiplexing (DWDM) allows multiple wavelengths to travel simultaneously on the same fiber, dramatically increasing network capacity. The Cisco DWDM-SFP10G-59.79 operates at 1559.79nm, one of 40 standardized ITU channels, enabling seamless integration into multi-wavelength optical networks.
Is the DWDM-SFP10G-59.79 compatible with Cisco switches and routers?
Yes. The DWDM-SFP10G-59.79 is designed as a fixed-wavelength module for Cisco 10 Gigabit Ethernet switches and routers with SFP+ ports. Its compact SFP+ form factor allows direct insertion into compatible Cisco platforms, enabling immediate DWDM transport capability without additional hardware or external multiplexers.
What does 100-GHz channel spacing mean for DWDM networks?
100-GHz channel spacing refers to the frequency separation between adjacent ITU wavelengths in a DWDM system. This standardized spacing allows 40 distinct wavelengths to be packed densely across the C-band spectrum. The DWDM-SFP10G-59.79 operates on one of these 40 channels, ensuring compatibility with other 100-GHz DWDM equipment and maximizing fiber utilization in high-capacity networks.
What are the power and thermal specifications for this module?
The Cisco DWDM-SFP10G-59.79 consumes a maximum of 1.5W and operates reliably across a commercial temperature range of 0–70°C. This low power profile reduces cooling requirements and operational expenses, while the wide temperature range ensures stable performance in diverse data center and network environments.
