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Heading2 - rs232 terminal specifications, Rs232 terminal specifications 59 – Dukane 28A8932 User Manual

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59

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

9

6

5

1