When events are triggered on EXO, A/B interface ports act as switches by sending ON or OFF signals to connected accessories. Ask your Blackline Safety distributor or sales representative for a list of EXO accessories that attach to the A/B interface ports.

You can configure interface ports to activate when EXO triggers a high-gas notification, low-gas notification, text message, or AlertLink message event. If an event is triggered, the port turns ON and any device connected to the port is active. The port turns OFF when the event resolves.

Interface ports can also be configured to apply or remove power from connected accessories when an event occurs. For more information on configuring interface ports, see the Blackline Live Technical User Manual.

Cable requirements

Both of EXO’s A/B interface ports are fitted with a female M12 4 pin receptacle. Electrical cables with a male M12 4 pin plug are required to connect to these ports.

Table 1. Interface port schematic diagram

Female receptacle Pin assignment M12 socket, 4-pos., A-coded, view receptacle side

Table 2. Interface port circuit diagram

Contact assignment of the M12 plug and M12 receptacles