The right side of the Tecla Shield

Switch Ports (1 and 2): The Tecla Shield has two dual switch 1/8” or 3.5mm stereo ports labelled 1 and 2.

Wheelchair Port: This provides access to up to four switch inputs through a DSub, 9-pin (also known as DB9) connector. The wheelchair port is compatible with directional controls on standard powered wheelchair Environmental Control Unit (ECU) modules, as well as other multiple switch devices such as joysticks. This is where you connect your ECU or joystick to the Tecla Shield.