Infocus XGA multimedia projector LP930 User Manual download pdf (Page 68)

RS232 Terminal Specifications

Communication configuration

To control the projector from an LCD control panel or terminal

software, connect a null modem type RS232 cable and set your

computer’s serial port settings to match this communication con-

figuration:

Here are the pinouts of the RS232 connector (outputs and inputs

are relative to the projector):

Command format

All commands consist of 3 alpha characters followed by a

request, all enclosed in 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 format: (AAA?) where

( starts the command

AAA denotes the command

? denotes the read request

)ends the command

Setting Value

Bits per second 19,200

Data bits 8

Parity None

Stop bits 1

Flow control None

Emulation VT100

1. Not used 6. Not used

2. Receive data

(input)

7. Ready to

send (output)

3. Transmit (output) 8. Not used

4. Not used 9. Not used

5. Ground

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Infocus XGA multimedia projector LP930 User Manual Page 68