The Cisco DS58-12CE1 Channelized E1 network card is a 12-port E1 interface module designed for the Cisco AS5800 platform, providing twelve channelized E1 connections on a single card. It carries part number 800-02551-03 and is used to expand an AS5800 system with additional E1 circuit interfaces. This card supports standard E1 connectivity for multi-service telecom deployments, enabling multiple E1 links from one chassis.
