MSB Technology The Select DAC User Manual page 11

Powerbase - 12 Volt Remote Trigger
This powerbase is equipped with a remote trigger for use with other MSB products. The trigger uses
a 3 pin mini jack. When any MSB product is turned off, the other products connected will also turn
off and vice-versa. This trigger can also be used with other products. Products may use this trigger
differently, so you may need to rewire a cable or use an interface relay. The connector is wired as
shown. If you connect "signal" to "ground", all MSB products will turn off. If you connect "signal" to "12
V" or leave it open, all MSB products will turn on.