User manual

PS121 Presentation Switcher

PTN Electronics Limited www.PTN-electronics.com

“volume knob”:

a) Adjust the volume, with bar indicator on the screen.

b) Press the surface of knob to mute the audio.

5) Power status LED indicator

6) MIC Mono audio input connector

7) IR sensor

3. Real Panel

1) DVI signal connectors zone: 4 inputs * 1 output

2) Composite video signal connectors zone: 4 inputs * 1 output

3) VGA video connectors zone: 4 inputs * 1 output

4) Three parts of following audio connector zone: (Left to right order: VGA audio, DVI

audio, Composite audio, prog audio )

VGA audio connector: 3.5mm mini jack connector for VGA, 4 inputs * 1 output

DVI audio connector: Balance/unbalance Stereo audio on capture screw connector,

4 inputs * 1 output

Composite video following audio connector: Balance/unbalance Stereo audio on

capture screw connector, 4 inputs * 1 output

Prog audio: Line audio, break away, can mixed with any one of the following audio

and the MIC audio, adjust by Volume selection and adjust front button.

5) RS 232 input: connect to the control device, (see below the “RS232 protocol”)

6) RS 232 & RS485 output: connect to the display device (like projector, LCD displayer,

LED displayer etc.). When you switch PS121, it will send the presupposed RS232 or

RS485 command series. (see below the “RS232 protocol”)

7) Power supply