Runco VX-33i Installation/Operation Manual 63
PRELIMINARY

6.1

RS-232 Connection

and Port Configuration

To interface the VX-33i with a home theater automation/control system or a PC running
terminal emulation software, connect it to your control system or PC as shown in Figure
3-15. Use a null-modem cable.
If you are using a PC to communicate with the VX-33i:
1. Start a terminal session on your PC using a terminal-emulation program, such as
HyperTerminal.
2. Configure the PC serial port as follows: no parity, 8 data bits, 1 stop bit and no flow
control. Set the baud rate to 19200, to match that of the VX-33i RS-232 port.
3. Press <Enter>. You should see a command prompt (>) in the terminal window.
4. Type a command from among those listed in Table 6-1 and press <Enter>.

6.2

Serial Command

Syntax

Commands are in ASCII format and are not case-sensitive; on and ON are equivalent.
For a command that takes no parameters, type the command followed by a carriage
return; for example, to turn on the system, type ON<Enter>.
For a command that takes a parameter, type the command, one or more spaces and
the desired value followed by a carriage return; for example, to switch to the S-Video
input, type SSRC 1<Enter>.
When you enter a valid command, the VX-33i executes it. When you send an on/off,
input selection, aspect ratio or image preset command, the VX-33i also responds with
an acknowledgment on the command line. For example, when you issue the command
SAR 2, the VX-33i responds with Letterbox on the command line.
When you enter a misspelled or otherwise invalid command, the VX-33i ignores it and
responds with Invalid Command on the command line.
When you send a command followed by values outside the valid range for that
command, the VX-33i ignores it and responds with Invalid Parameter on the
command line.
When the VX-33i receives an OFF command, it will not acknowledge or execute any
commands for approximately 90 seconds afterwards. This is to prevent hot re-strikes
of the lamp, which can damage it.
After sending an ON command, allow at least 30 seconds for the projector to warm up
before sending another command.
6. Serial Communications