## Event Type
Digital Output

The Digital Output event type is most commonly used for sending event markers to ERP devices, but can be used anytime you need to “talk” to an external device. The supported devices are:

- Measurement Computing PCI-DIO24 I/O card model. Other models from Measurement Computing will probably also work but haven’t been tested.

- RB-x30 response pads (RB-530, RB-730, RB-830, and RB-834)

- Lumina LP-400

- SV-1 Voice Key

All currently shipping Cedrus products include an intelligent Accessory Connector (RJ-45) that provides six I/O lines. By default, the Accessory Connector is set to "reflective" mode, meaning that the six I/O lines reflect the state of the response pad keys or the voice key. To be able to use Digital Output events with the Accessory Connector, click on the Setup button to change the mode:

Once you have selected the device and port, you can select which lines on the port that you want to control. You can select a line either by turning the corresponding checkbox on or off, e.g. AC1 or AC2, or by entering a number for the combination of lines. Click on the Test Now button to have SuperLab control the I/O lines as you have set them up.