The Cisco ONS 15327 increases the efficiency of bandwidth delivery and management in optical transport networks. Like the larger Cisco ONS 15454, the ONS 15327 is a SONET add/drop multiplexer that offers service aggregation and high-bandwidth transport of voice and data traffic on a single platform. This smaller platform makes the ONS 15327 cost-effective and space-efficient when the full capability of the ONS 15454 is not required, while still enabling users to easily manage services and quickly increase capacity without disrupting service. Therefore, the ONS 15327 is ideal for extending the edge of the optical network to the customer premise.Standard equipment includes wall mount cabinet integrated with rectifier, power distribution box, cable management and accessories; ONS 15327 shelf assembly including fan tray assembly.