AOC IN1710, IN1222, IN1510 Using RS-232 Control, Communication Protocol, Baud Rate Selection

16

USING RS-232 CONTROL

The IN1222/IN1510 and IN1422/IN1710 include an 9-pin REMOTE CONTROL port which will accept serial commands from a control system, computer serial port, or any other device capable of sending out serial ASCII commands at compatible baud rates. All switching, adjustment, and set-up parameters can be controlled using RS-232 commands. A few functions cannot be accomplished from the front control panel and are available only through RS-232 control:

Audio Mute

Audio Bass and Treble Control

Comprehensive Control of Individual Contrast Filter Settings and Coring Settings Horizontal Picture Centering (non-doubling mode only)

Saving the settings from one input to other selected inputs Changing the RS-232 Baud Rate

Changing the command codes (delimiters)

Getting Firmware Information on the Microcontroller

Details on the commands above, and a complete listing of RS-232 codes is included on pages 18 & 19.

COMMUNICATION PROTOCOL

8 data bits

1 stop bit

No parity check

1200 baud (factory default setting)

BAUD RATE SELECTION

The IN1222 / IN1510 / IN1422 / IN1710 have a factory default baud rate of 1200 and can communicate at baud rates from 1200 up to 19200. Baud rates can only be changed and saved via RS-232 commands (see page 18).

The units revert back to a baud rate of 1200 each time the power is turned off. If the unit will be turned on and off frequently and the control system is going to use one of the higher baud rates, then the "SAVE0" command (save global settings) should be used to save the appropriate baud rate and command code settings. Once the settings have been saved this way, the unit will recall the new baud rate and command codes at power up.

IIN1222 / IN1422 / IN1510 / IN1710 OPERATIONS MANUAL - REV. 2 12/04/99 ©1994 - INLINE, INC.