About EMS integrationEdit online The Network Manager EMS integration enables Network Manager to collect topology data from Element Management Systems. About collectorsA collector is a software module that retrieves topology data from a data source, such as an Element Management System (EMS) or a comma-separated value (CSV) file, and makes this data available to the discovery process as a set of XML data. Network Manager can then stitch this data into the discovered topology.Predefined collectorsNetwork Manager ships with a set of default collectors that retrieve device data from a variety of EMSs, including EMSs that manage radio access network (RAN) and Optical devices.Other components of the EMS integrationIn addition to collectors, EMS integration is composed of several components that assist in the collection of topology data.EMS discovery data flowUse this information to understand the steps in an EMS discovery.Parent topic: Configuring EMS discoveries