Cisco 15516-DWDM8-RED ITU-200 GHz 9x9 Red Mux/Demux

Overview
The Cisco 15516-DWDM8-RED ITU-200 GHz 9x9 Red Mux/Demux is a high performance dense wavelength division multiplexing (DWDM) component designed for carrier grade optical networks. It provides precise multiplexing and demultiplexing of nine optical channels across a 200 GHz ITU grid, enabling efficient use of fiber infrastructure while maintaining low insertion loss and high isolation. This red-coded unit is engineered for robust operation in harsh environments and is ideal for metro, regional and long haul deployments where bandwidth scalability and reliability are critical.

Key Features

• Supports 9 channels on a 200 GHz ITU grid for flexible network planning
• Low insertion loss typically less than 1.5 dB per channel
• High channel isolation greater than 30 dB to minimize crosstalk
• Red color coding for easy identification and inventory management
• Compact 2U rack-mountable form factor for space constrained installations
• Operates over a wide temperature range from -40 deg C to +85 deg C
• Compatible with Cisco optical platform ecosystem and standard industry connectors

Technical Specifications

• Model/Part Number: 15516-DWDM8-RED
• Channel Count: 9
• Channel Spacing: 200 GHz (ITU grid)
• Wavelength Range: 1525 nm to 1565 nm (C band)
• Insertion Loss: < 1.5 dB typical
• Isolation: > 30 dB
• Polarization Dependent Loss: < 0.2 dB
• Return Loss: > 30 dB
• Connector Type: FC/APC
• Operating Temperature: -40 deg C to +85 deg C
• Power Consumption: None (passive device)

Applications

• Metro Ethernet and carrier Ethernet aggregation
• Optical transport network (OTN) node expansion
• Regional and long haul fiber link densification
• Network scaling for data center interconnects
• Hybrid DWDM/WDM deployments in service provider networks
• Infrastructure upgrades where space and power efficiency are priorities

By integrating the Cisco 15516-DWDM8-RED into your optical network, you gain a reliable, low-loss solution that maximizes fiber capacity while simplifying management and maintenance. Its proven performance and Cisco quality assurance make it a smart choice for any operator looking to future-proof their transport architecture.