The alarm relay wires connect external alarm-reporting devices to the RED and YELLOW relay contacts on the craft interface.
The terminal blocks that plug into the alarm relay contacts are supplied with the services gateway. The terminal blocks accept wire of any gauge between 28-AWG and 14-AWG (0.08 and 2.08 mm2). Use the wire gauge appropriate for the external device you are connecting.
Figure 41: Alarm Relay Contacts