Elo Touch Solutions ET3202L User Manual page 19

Audio
Audio from the touchmonitor Line In, touchmonitor HDMI, touchmonitor DisplayPort, computer
module Line In, or computer module HDMI or DisplayPort ports can be played over the
touchmonitors internal speakers. See the "Audio Source" OSD parameter for details. When
headphones are plugged into the headphone output jack, the internal speakers turn off and
audio is played over the headphones.
Volume and muting of the speaker and headphone outputs are controlled by the OSD.
MDC or DDC/CI Functionality (For Remote Monitor
Applications)
The touchmonitor has the ability to allow remote access from a host application. This is done
through the use of either the VESA Display Data Channel Command Interface (DDC/CI) or the
Multiple Display Control command sets. Users can communicate with the monitor through
either of these protocols. The host application can send a variety of different commands which
will be executed on the IDS 02 touchmonitor. For detailed information regarding the command
set, refer to the application note available here.
GPIO Functionality (General Purpose Input Output)
The touchmonitor has the ability to accommodate GPIO functionality. The connector is located
near the AC power socket on the IO port of the monitor. There are four pins and they are
configured in the following set up:
Electrical Ratings:
Max Voltage: 5V
Max Current: 200mA
1x input (TTL), 1x output (TTL)
1. GND
2. 5VDC Power output
3. GPIO1 input
4. GPIO2 output
User Manual: Interactive Digital Signage
SW602296 Rev A, Page 19 of 39