OPTOMA H31 - Manual

A user manual for an infrared-controlled device system, this guide covers the RS-232 communication protocol for hardware interaction alongside a structured command reference for remote operations. The document outlines how to manage basic functions–such as power and media navigation–and OSD settings (e.g., brightness adjustments) via IR signals or direct commands. It also details auto-status checks for picture state management and lamp status inquiries, with some commands restricted to specific product lines like MP models.

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H31 - RS232 Command List

Interface
Hardware : 3 wires RS-232C
Baud Rate: 9600
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control: None

Command Sequence

Write

Basic Protocol

Header:

‘*’

Address Code:

‘0’ fixed

Command Code:

ASCII Text

Data:

Fixed 3 digits

Terminator Code:

Carriage Return

Command Sequence

Read

Basic Protocol

Header

‘*’

Address Code

‘0’ fixed

Command Code

ASCII Text

Data

‘?’ fixed

Terminator Code

Carriage Return

Acknowledgement

Basic Protocol

Return Status

Receive OK

Invalid Command

Transmit OK

Transmit Ok

Data response

As Write Command

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