User manual INFOCUS LP600 - Setup Instruction

RS-232 Setup Instructions Communication Configuration Baud Rate Data Bits Parity Stop Bits Flow Control Emulation Required Cable Null Modem Cable ­ female to female 9-pin serial Cable Pinouts InFocus projectors use the basic form of RS-232 functionality. Following are the required pinouts. Note that the cables commonly available at local computer or electronic stores meet these requirements. Function No Connection Received Data (RxD) Transmitted Data (TxD) No Connection Signal Ground (GND) No Connection No Connection No Connection No Connection Pin 1 2 3 4 5 6 7 8 9 Pin 1 3 2 4 5 6 7 8 9 Function No Connection Received Data (RxD) Transmitted Data (TxD) No Connection Signal Ground (GND) No Connection No Connection No Connection No Connection 19,200bps 8 None 1 None VT100 Three pins need to be terminated: ground, send and receive (5, 3, and 2 respectively). Control Software You can use any one of a variety of available RS-232 programs to control a projector. Hyperterminal, for example, comes with all versions of Microsoft Windows. Also consider Look RS232 (available at www.lookrs232.com/). Some programs will allow you to assign RS-232 strings to hot keys or buttons. Companies such as Crestron (www.crestron.com) and AMX (www.amx.com) make RS-232 control boxes that make it easier to control your projector. Command Format All InFocus projectors use ASCII format command format. All commands consist of 3 alpha characters followed by a request and all enclosed by parentheses. The request can be a read request (indicated by a "?") or a write request (indicated by 1 to 4 ASCII digits). A read request will report information to you, such as lamp hours. A write request is to tell the projector to change a setting. Command Examples A read request example: Command to request Brightness setting is (BRT?) ( starts the command BRT denotes the brightness command ? denotes the read request ) ends the command The response would appear as (0-22, 10), where 0-22 is the brightness range of the projector. 10 is the current brightness setting Here are some other examples. To interpret the responses, you may need to refer to the actual list of commands. Function Lamp Hours Aspect Ratio Vertical Keystone Command (LMP?) (ARZ?) (DKC?) Response (0-32767, 250) (0-4, 1) (53-203, 60) Description 250 lamp hours 16:9 aspect ratio Vertical keystone set to 60 A write request example: Command to change Brightness setting to level 10 is (BRT10) ( starts the command BRT denotes the brightness command 10 denotes the write request ) ends the command 2 Some commands have ranges, while others are absolute. If a number greater than the maximum range is received, it is automatically set to the maximum number for that function. If a command is received that is not understood, a "?" is returned. With absolute settings, "0" is off, 1-9999 is on. Here are some other examples. Refer to the projector's command list for other commands. Function Aspect Ratio Flip the image for ceiling projection Power up Power down Command (ARX2) (CEL1) Response Sets the aspect ratio to 4:3 Enable ceiling projection mode. Flips image. Powers up the projector. Powers the projector down. (PWR1) (PWR2) NOTE To assure the projector can process a command, wait 3 seconds before entering the next command. Error Conditions Not all commands are supported for all projectors. If an unsupported command is issued, the command will be ignored. If a command is received that is not understood, a ? character will be returned indicating the command was not understood. Below is a list of common errors. Function Aspect Ratio Flip the image Command (ARZ2)A (CEILING1) Response ? ? Reason Too many characters Too many characters. Improper command. Invalid value. Too many 9s. Power Up (PWR99999) ? Most programs do not require a line feed after a command. Using a line feed, may cause the projector to respond with a "?" indicating an invalid command. Commands should respond within seconds of entering a command. If it does not, then there may issues with your connection, syntax or RS-232 software. Limitations The CLI cannot respond to commands coming in at a high-rate. Therefore, a delay must occur between commands to ensure that the command gets properly executed. To assure the projector can process a command, wait 3 seconds before entering the next command. Some commands may only be valid when the projector is receiving an active computer or video signal. If a setting is not an active feature in the menu, the CLI command will not work. For example: aspect ratio, color and tint are functions that require an active source. 3