Sony RS-232C User Manual 2
Specifications and Main Features
- There is a serial RS-232C communication protocol between the amplifier and the host controller.
- Baud Rate: 9600 bps
- Data Bits: 8 bits
- Parity: No
- Stop Bits: 1
- Response Time: The time taken to respond for command receipt is less than 500 ms.
- Command structure: STX + BC + PDC + CMD + Data1 + … + DataN+ CS
- Acknowledgment codes: ACK (0xFD), NACK (0xFE).
- Command categories: The commands include Amplifier, Sound Adaptor, Audio Tuner.
- The codes refer to the implementation of Product code: Several defined commands and operational codes.
- Control Commands: Power ON/OFF, Volume Control, Select source inputs, Control mute.
- Available Features: Control for multi-zone, Control for trigger12V, Status request.
- Error Handling: The command could not be executed and the command failed and a response code was returned which was NO-EXECUTABLE and NO-FUNCTION.
Frequently Asked Questions
Q: What is the baud rate for the RS-232C communication protocol?
A: The communication protocol uses a baud rate of 9600 bps.
Q: What is the nature of the voice amplification device's feedback?
A: The amplifier provides feedback in the form of ACK (0xFD) or NACK (0xFE).
Q: In respect to the received commands, what is the maximum management time for an amplifier to issue a message?
A: Amplifier has a time limit of 500ms within which it must respond to a given command.
Q: Am I right to say that the amplifier is able to send status updates even if the host controller has not requested one.
A: As put across by the host controller, the messages are not transmitted unless requested which includes the amplifier.
Q: What commands can be executed when the amplifier is powered off?
A: The able to under this command are limited to power on and status request commands.
Q: What is the procedure to follow in case a command is not able to be executed?
A: The result in this case as previously stated would be either of the following NO-EXECUTABLE or NO-FUNCTION code this then becomes the command response.
Q: What is the number of bits of information used in the communication protocol?
A: This management system has its distinct 8 bits communication system.
Q: For the given protocol, are there commands for volume control and mute for the amplifier?
A: Indeed all commands applicable to the protocol for volume control and mutes are part of the specification.
User Manual
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