Product manual

DE285 HD Caption Decoder/VANC Monitor

Appendices

Appendix A GPI/GPO

The following picture shows the 25-pin GPIO connector on the rear

panel.

The GPI inputs are on pins 17-24, with a common ground on pin 25.

Each switch is ON when connected to the common ground, and OFF

when open or ﬂoating.

The GPO outputs are on pins 1-16. Each pair of successive pins forms a

switch that is ON when closed and OFF when open.

A1. GPI

A1.1. Layout Scrolling

Pins 17 and 18 can be used for layout scrolling to change the current

active layout. Pin 17 scrolls "left" or to the previous layout. Pin 18

scrolls "right" or to the next layout.