Runco LS-10I User Manual

In addition to using the LS-10i remote control unit, there are three methods of controlling 
the projector externally: 

• Using a serial (RS-232) link to send ASCII commands and receive responses to those 

commands.

• Using discrete infrared (IR) codes to program a third-party remote control unit.

• Using an HDMI connection to send Consumer Electronics Control (CEC) commands 

from a BD player or other source component that supports CEC. 

The following sections describe these methods. 

The LS-10i uses a simple text-based control protocol to take requests from control 
devices and to provide responses to such devices. This section describes how to send 
control messages over a serial link between the LS-10i and an automation/control system 
or a PC running terminal emulation software.

To interface the LS-10i with a home theater automation/control system or a PC running 
terminal emulation software:

1. Connect it to your control system or PC as shown in Figure 3-13. 

2. Start a terminal session on your PC using a terminal-emulation program, such as 

HyperTerminal. 

3. Configure the RS-232 controller or PC serial port as follows: 38400 bps, no parity, 8 

data bits, 1 stop bit and no flow control. 

4. Type

 ky or op followed by a command from among those listed in Table 6-1 or 

Table 6-2 and press 

<Enter>. For example, to change the aspect ratio to Letterbox, 

type 

op aspect = 1<Enter>. 

Serial commands to the LS-10i take the following form:

• Commands are in ASCII format.

• Spaces and tabs can be used to improve readability and are ignored by the projector.  

• All commands must end with a carriage return (ASCII hex 0D) to signify that the 

projector can now read and execute the command.

• Commands are not case-sensitive.

The LS-10i supports two types of commands: key commands and operation commands.  
Key commands mimic pressing a button on the remote control. Operation commands tell 
the projector exactly what to do.

All commands start with 2 letters:

ky for key commands.

op for operations commands.