The trigger port (black and blue banana jacks) can be used to connect to third-party timing devices to either receive or send timing impulses. These are a pair of standard 4mm banana plugs.
Devices used to record impulses should normally open and close the circuit to create the trigger, the impulse must be LOW for a duration of at least 1ms (0.001s). If recording multiple consecutive triggers, then the impulses must be 10ms apart (0.01s).
The trigger port cannot be used to connect a Loop Cable for timing.
| Blue | Black | |
| Polarity | + (Positive) | - (Negative) or GND |
