Lexicon Lexicon BD-30 Blu-ray Disc Player RS-232 Control Protocol, RS-232 Pin Configuration

Appendix Lexicon

Lexicon BD-30 Blu-ray Disc Player RS-232 Control Protocol

The Lexicon BD-30Blu-ray Disc Player can be ordered with an RS-232 option for wired remote control. The RS-232C port is configured as a DCE device using a female 9-pin D-Sub type connector.

RS-232 Pin Configuration:

The pin out of the BD-30 RS-232C port is as follows:

Pin	Signal
2	TXD
3	RXD
5	GND

This pin configuration allows a PC running a serial terminal program (such as Hyper Terminal) to communicate with the player using a straight-through DB9 9-pin RS-232 serial cable. Do NOT use a “Null-Modem” type cable for PC connection. For connection to a remote control system, please refer to the documentation that comes with the remote control system.

Communication Settings:

The RS-232 control port of the Lexicon BD-30 uses the following communications settings:

Baud Rate: 9600

Data Bits: 8

Parity: None

Stop Bit: 1

Flow Control: None

Command Structure:

Each command starts with a # sign (ASCII 0x23), followed by a

3-character command code. If there are any parameters for the command, the parameters are given in text format, separated by a space (ASCII 0x20) from the command code. The # character (ASCII 0x23) must never appear in the parameters. A carriage return (ASCII 0x0d) indicates the end of the command. Each command must not exceed 25 bytes including the start of command and end of command bytes.

The illustration of the command structure is as follows:

<Command> = <Start of Command><CommandCode> [<sp><Parameters>]<End of Command>

<Start of Command> = #, ASCII 0x23 <Command Code> = <byte><byte><byte> <sp> = space, ASCII 0x20 <Parameters> = command-specific

<End of Command> = CR, ASCII 0x0d

Response Structure:

Upon receiving a command, the player shall try to execute the command and send back a response. The response starts with an “@” sign (ASCII 0x23), followed by a result code, either “OK” or “ER”. If there are any parameters or additional message, the parameters or message is given in text format, separated by a space (ASCII 0x20) from the result code. The @ character (ASCII 0x40) must never appear in the parameters or message. A carriage return (ASCII 0x0d) indicates the end of response. Each response must not exceed 25 bytes including the start of response and the end of response bytes.

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