# Integration Requirements

To use the diagnosis tool EC-Lyser with a customer application, some modifications have to be done during integration of the EC-Master. The task is to integrate and start the Remote API Server system within the custom application, which provides a socket based uplink, which later on is connected by the
EC-Lyser.

![Remote Access Service (RAS) architecture showing a client application connecting over TCP/IP to a remote EC-Master server that controls an EtherCAT network](../Media/RAS.PNG)

An example on how to integrate the Remote API Server within the application is given with the example application EcMasterDemo, which in case is pre-configured to listen for EC-Lyser on TCP Port 6000 when command line parameter [`EcMasterDemo -sp`](gettingstarted_running-demo.html.md#cmdoption-EcMasterDemo-sp) is given.

To clarify the steps which are needed within a custom application, a developer may use the following pseudo-code segment as a point of start. The Remote API Server library `EcMasterRasServer.lib` (or respectively `EcMasterRasServer.a`) must be linked.