Command Reference

Basic Control Commands

The group of the Basic Control Commands contains 12 commands that enable you to perform the basic operations such as changing the sound volume, switching the LINE4 SELECTOR of the SRP-X700P and others.

CONTROL S: 43[H] 52[H] 43[H] 53[H] (‘CRCS’)

This command is used to control an external equipment that is connected to the CONTROL S terminal of the SRP-X700P.

• Packet format

43[H] 52[H] 43[H] 53[H] “parameter” 0D[H]

• Parameter

The parameter consists of the two-byte data in the following order.

byte

Parameter name

 

 

1st

CHANNEL

 

 

2nd

REMOTE COMMAND

 

 

• Channel

Specify the equipment to which you want to send the command.

CHANNEL

 

 

 

LINE 3 INPUT

31[H] ( ‘1’ )

 

 

LINE 4A INPUT

32[H] ( ‘2’ )

 

 

LINE 4B INPUT

33[H] ( ‘3’ )

 

 

LINE 4C INPUT

34[H] ( ‘4’ )

LINE 4D INPUT

35[H] ( ‘5’ )

 

 

LINE 4E INPUT

36[H] ( ‘6’ )

 

 

LINE 4F INPUT

37[H] ( ‘7’ )

LINE 4 INPUT

38[H] ( ‘8’ )

 

 

When LINE 4 INPUT is specified, a remote command is sent to the channel that is currently selected by LINE 4 input.

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Sony RS-232C manual Control S 43H 52H 43H 53H ‘CRCS’, Packet format, Channel
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RS-232C specifications

The Sony RS-232C is a renowned communication standard that has been widely utilized in various electronic devices, enabling serial communication between computers and peripheral devices. This protocol is integral in various applications, including industrial automation, medical equipment, and consumer electronics.

One of the main features of the Sony RS-232C is its simplicity and ease of use. The standard utilizes a basic serial communication method, allowing for asynchronous data transmission. This means that data can be sent one bit at a time over a single channel, ensuring reliable communication over short distances, typically up to 50 feet, although longer distances can be achieved with proper cable management and signal boosters.

The technology behind the RS-232C standard employs voltage levels to represent binary data. Logic level zero is represented by a voltage between -3 to -25 volts, while logic level one is between +3 to +25 volts. This voltage differential is crucial for distinguishing between 'on' and 'off' states in electronic signaling. The standard supports data rates of up to 115.2 kbps, making it suitable for various applications, although it is generally limited in speed when compared to modern communication standards like USB or Ethernet.

In terms of characteristics, the Sony RS-232C supports both full-duplex and half-duplex communication, allowing for simultaneous transmission and reception of data, or one-directional data transfer, respectively. The protocol also includes control signals for flow control, such as RTS (Request to Send) and CTS (Clear to Send), which help manage data transmission and prevent data loss due to buffer overflow.

The RS-232C standard has 25-pin and 9-pin connector configurations, although many devices now utilize the more compact 9-pin DIN format. This legacy standard remains prevalent in industrial settings, as many devices still use RS-232 connections.

Despite the emergence of more advanced communication protocols, the reliability and robustness of the Sony RS-232C ensure that it remains an enduring choice for numerous applications. Its straightforward configuration, coupled with extensive documentation and support, makes it a favorable option for both new installations and the maintenance of legacy systems in various industries. As technology continues to evolve, the RS-232C standard remains a testament to the enduring principles of reliable communication.
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