Cisco 15216-FLD-4-36.6 Asy,optic,4chs Fixed OAD Module 1536.61

Overview
The Cisco Asy optic 4chs Fixed OAD Module 1536.61 (part number 15216-FLD-4-36.6) is a high-performance optical transceiver designed for carrier grade routers and switches. It provides four parallel channels of fixed optical attenuation, enabling precise signal level control in dense wavelength division multiplexing (DWDM) environments. This module is engineered for reliability, low latency and easy integration into Cisco platforms that support the 1536.61 form factor.

Key Features

• Four independent optical attenuation channels for fine-tuned power management
• Fixed attenuation design eliminates the need for manual adjustments
• Compact 1536.61 form factor fits standard Cisco chassis
• Supports wavelengths from 1520 nm to 1565 nm for CWDM and DWDM applications
• Low insertion loss and high return loss for optimal signal integrity
• Plug-and-play installation with hot-swap capability

Technical Specifications

• Module type: Fixed Optical Attenuation Device (OAD)
• Channels: 4
• Wavelength range: 1520 nm - 1565 nm
• Attenuation per channel: 0.5 dB steps up to 30 dB
• Insertion loss: less than 0.5 dB
• Return loss: greater than 55 dB
• Operating temperature: 0 deg to 70 deg C
• Power consumption: less than 1.5 W
• Connector type: LC duplex
• Compliance: RoHS, FCC Part 15 Class B

Applications

• Long haul and metro optical transport networks
• Data center interconnects requiring precise power balancing
• Carrier Ethernet and IP/MPLS backbone deployments
• Fiber to the home (FTTH) aggregation points
• Network scaling projects where additional attenuation channels are needed without adding separate devices

By integrating the Cisco 15216-FLD-4-36.6 OAD module, network operators can achieve consistent optical performance, reduce manual tuning effort, and maintain high availability across critical transport links.