APPENDIX B
REMOTELY MANAGING YOUR SYSTEM THROUGH AN RS-232 SERIAL INTERFACE
54 smarttech.com/kb/170549
Serial interface settings
The serial interface of the projector acts as a Data Communications Equipment (DCE) device and
its settings can’t be configured. You must configure your computer’s serial communication program
(such as Microsoft®HyperTerminal) or your room control system’s serial communication settings
with the following values:
Setting Value
Data Rate 19.2 kbps
Data Bits 8
Parity None
Stop Bits 1
Flow Control None
NOTES
l Asynchronous mode is disabled by default in the projector.
l All commands should be in ASCII format. Terminate all commands with a carriage return.
l All responses from the projector are terminated with a command prompt. Wait until you
receive the command prompt indicating that the system is ready for another command
before you proceed.
l The room control feature of the projector is always on.
To configure your computer’s serial interface
1. Turn on your computer, and then start your serial communications program or terminal
emulation program.
2. Connect your computer to the serial connection cable you previously connected to the
control panel.
3. Configure your serial interface settings using the values from the table above, and then press
ENTER.
An “invalid cmd= ? for help” message appears, and the “>” character appears as a command
prompt on the following line.
IMPORTANT
If no message appears or if an error message appears, your serial interface configuration
is not correct. Repeat step 3.
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