RB Series Response Pads

Accessory Connector Features, in Plain English

The Accessory Connector on the back of the RB Series response pads provides up to six highly configurable I/O (input/output) lines that can be used to send a signal to an external device or to accept input from external sources.

Note: Many of the features described below require custom programming and are not supported in SuperLab.

The Technical Details

The RB Series response pads sport an Accessory Connector that can be configured in many ways and entirely via software. It can function in one of two modes: Reflective or General Purpose.

When in Reflective Mode, the pins on the Accessory Connector reflect the status of the response pad's push buttons. The following options are offered:

Reflective Mode	When a Push Button is Pressed...
Continuous	...the corresponding pin on the Accessory Connector goes high and stays high until the push button is released.
Single Pulse Mode	...a single pulse is sent on the corresponding pin. The pulse's duration can be adjusted. This mode works well with products from Neuroscan and Brain Products GmbH.
Double Pulse Mode	...a pulse is sent on the corresponding pin; when the push button is released, a second pulse is sent.

Two additional features are available when in Reflective Mode:

A pin on the Accessory Connector provides an "OR" output. It goes high when any push button is pressed.
The logic of the output pins can be set to active high or active low.

When in General Purpose Mode, the Accessory Connector can be used for general purpose input/output (I/O) operations.

Any I/O lines can be used for either input or output.
Lines selected for input can be pulled high or pulled low, entirely via software -- no exterior resistors needed.

For input lines, inputs are time stamped.