The Cisco® ONS 15454 Multiservice Transport Platform (MSTP) provides a comprehensive, intelligent dense wavelength-division multiplexing (DWDM) solution for expanding metropolitan-area (metro) and regional bandwidth.The Cisco ONS 15454 MSTP offers a fully integrated reconfigurable optical add/drop multiplexing (ROADM) solution for delivering any wavelength to any location in a metro or regional network. The ROADM cards are part of the Cisco ONS 15454 MSTP intelligent DWDM architecture engineered to reduce DWDM complexity and speed the deployment of next-generation networking solutions.This unit operates with the 32-channel WSS in C band ROADM nodes to provide access to channels to be dropped locally. Embedded automatic power control mechanisms enable it to interface with different types of DWDM units without requiring external attenuators.