Relay is an external security device connected to the system.

The relay can be setup in one of the following statuses:

1. On;
2. Off.

Each executive object like relay is furnished with an executive device, which is a physical device, switched on and off with the relay. The map displays symbols of the following types of executive devices:

1. Light;
2. Acoustic alarm;
3. Lock;
4. No specified type.

To operate the relay, the Operator uses the map (see the Operations with the relay section) or pre-defined macro commands (Run menu in the main control panel).