1. LAN: LAN (10Mbps/100Mbps).
2. RS232: Use RS232 for PC control.
3. IR Output: IR OUT routing follows the video matrix routing, no need to separately control IR matrix.
4. IR Input: IR IN routing follows the video matrix routing, no need to separately control IR matrix.
5. Audio Input: 4x 3-pin Phoenix connectors to input external analog LR audio, users can select this audio to replace the corresponding embedded HDMI audio.
6. Audio Output: 4x 5-pin Phoenix connectors to output balanced LR audio, and 4 mini Toslink jackets to output analog LR audio and digital Spdif audio. The 4 sets of Audio output (LR and Toslink) channels can be independent of video and switched by PC Tool or commands.
7. 110-240VAC: 110-240V AC power input port.
8. GND: Ground the product housing.
9. HDMI Inputs 1-4: HDMI inputs connect HDMI source devices such as a DVD player or gaming console with an HDMI cable.
10. HDMI Outputs 1-4: Connect to the monitor to display the video of the signal source.
11. LCD Panel: Displays the current video selections.
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12. COM: Power LED (also indicates control commands).
13. IR: IR LED.
14. LOCK: Front panel lock/unlock. Press button LOCK, to lock or unlock front buttons. When locked, the Lock LED will be solid.
15. INPUT: Input selection buttons 1-4.
16. OUTPUT: Output selection buttons 1-4.
17. ALL: Set all outputs to the next input selection.
18. SAVE: Save the current matrix setting as a preset.
19. RES: Set the output scaler resolution.
20. RECALL: Set the matrix setting from a saved preset.
21. EDID: Set the EDID options for the next input selection.
22. CLEAR: Cancel the current command function.
23. NEXT: Select the next available option.
24. TAKE: Set the displayed option.
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