Optoma EH501 Manual 

Function List RS232 Pin Assignments D-Sub 9 pin (from the projector side) 1 1 CD 2 RXD 3 TXD 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI (from the cable side) C1 COLOR C2 1 Black 1 2 Brown 3 3 Red 2 4 Orange 6 5 Yellow 5 6 Green 4 7 Blue 8 8 Purple 7 9 White 9 SHELL DW SHELL ...

Note � To also include AMX beacon signal in RS232 protocol � In basic terms, AMX controllers will issue a poll periodically to detect 3rd party devices connected to the RS232 port (in this case Optoma). The poll is "AMX" in ASCII followed by a carriage return 'r'. � There is a after all ASCII commands. � 0D is ...

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IR ~XX400 0 7E 30 30 34 30 30 20 30 0D 3D�2D 3D ~XX400 1 7E 30 30 34 30 30 20 31 0D L ~XX400 2 7E 30 30 34 30 30 20 32 0D R ~XX405 0 7E 30 30 34 30 35 20 30 0D 3D Format Auto ~XX405 1 7E 30 30 34 30 35 20 31 0D SBS ~XX405 2 7E 30 30 34 30 35 20 32 0D Top and Bottom ~XX405 3 7E 30 30 34 30 35 20 33 0D Frame ...

Off ~XX455 1 7E 30 30 34 35 35 20 31 0D On ~XX456 0 7E 30 30 34 35 36 20 30 0D PJLink Off ~XX456 1 7E 30 30 34 35 36 20 31 0D On ~XX457 0 7E 30 30 34 35 37 20 30 0D AMX Device Discovery Off ~XX457 1 7E 30 30 34 35 37 20 31 0D On ~XX458 0 7E 30 30 34 35 38 20 30 0D Telnet Off ~XX458 1 7E 30 30 34 35 38 20 3 ...

Volume + ~XX140 19 7E 30 30 31 34 30 20 31 39 0D Brightness ~XX140 20 7E 30 30 31 34 30 20 32 30 0D Menu ~XX140 21 7E 30 30 31 34 30 20 32 31 0D Zoom ~XX140 47 7E 30 30 31 34 30 20 34 37 0D Source --------------------------------------------------------------------------------------------------------------------- ...