Overview

This is the Interface Manual for the Sony SRP-X700P Digital Powered Mixer. This protocol is designed to control the SRP-X700P Digital Powered Mixer from an externally connected computer. Read this manual together with Operating Instructions.

Caution

The material contained in this manual consists of information that is the property of Sony Corporation and is intended solely for use by the purchasers of the equipment described in this manual.

Sony Corporation expressly prohibits the duplication of any portion of this manual or the use thereof for any purpose other than the operation or maintenance of the equipment described in this manual without the express written permission of Sony Corporation.

Numeric expression and nomenclature of character

The numeric values followed by [H] indicate the hexadecimal numbers. Other numeric values are the decimal values. The characters surrounded by apostrophes (‘ ’) indicate the hexadecimal numbers converted the by the ASCII code.

Connecting Computer

Connect the COM port of a computer to the REMOTE RS-232C terminal of the SRP-X700P Digital Powered Mixer. The REMOTE RS-232C terminal of the SRP-X700P Digital Powered Mixer has the following specifications.

Terminal shape

: D-SUB 9-pins, male, inch-sized screws

 

 

 

 

 

Electrical specifications

: Conforms to the RS-232C standard

 

 

 

 

 

Connection

:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin No.

Name

 

 

 

 

 

 

 

 

 

 

1 2 3 4 5

 

 

1

 

F.G

 

 

2

RXD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

TXD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

DTR

6

7

8

9

 

 

 

 

 

 

 

5

GND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

DSR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

 

RTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

 

CTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

OPEN

 

 

 

 

 

 

 

 

 

 

 

 

 

SRP-X700P

 

 

Computer COM port

 

REMOTE RS-232C terminal

(for D-SUB 9-pins male connector)

 

 

Name

Pin No.

Pin No.

 

Name

 

 

RXD

2

 

 

3

 

 

TXD

 

 

 

 

 

 

 

 

TXD

3

 

 

2

 

 

RXD

 

 

 

 

 

 

 

 

GND

5

 

 

5

 

 

GND

 

 

 

 

 

 

Communication Format

The communication format is described below.

Baud rate

: 9600 bps

Communication mode

: Half-duplex start stop system (asynchronous)

Data length

: 8 bits

Parity

: Odd

Stop bit

: 1 bit

Flow control

: None

– 4 –

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Image 4
Sony RS-232C manual Rxd Txd Dtr Gnd, CTS Open

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.