The Cisco ONS 15310-CL SONET Multiservice Platform is an economical, 1-rack unit (1RU)-high delivery platform optimized for use as the last network element, at the customer location (CL), in a service provider's network or for use as an end node in enterprise or campus environments. The Cisco ONS 15310-CL interoperates with and takes advantage of the proven technology pioneered by the Cisco ONS 15454, the industry's leading multiservice optical transport platform.This Cisco ONS 15310 customer-located DC chassis subassembly includes 2 DC power connectors and 19/23-in. rack mount brackets.