English

Operations

External Control (Serial Interface) RS-232C

The unit can receive external control signals and transmit status information by connecting a cross cable on the market to the D-sub 9 pin connector for RS-232C external control.

Pin Assignment of the Connector

 

 

1

NC

RS-232C

2

RX

 

 

5

1

3

TX

4

NC

 

 

 

 

5

GND

 

 

6

NC

 

 

7

NC

9

6

8

NC

 

 

9

NC

RS-232C Physical Specification

Cable

Straight-type

Connector

D-Sub 9 pin

 

(Female type)

Baud rate

9600bps

Data bits

8 bits

Parity

None

Stop bit

1 bit

Flow control

None

 

 

Data Packet

A packet contains data from 5 to 8 bytes in length. In serial communication, ASCII code from 00h to 7fh is used. So the HEX data are converted into ASCII code and set to the data packet. The data packet includes CR code (0dh) at the end.

Example 1: CD Play (Code: 20 53)

[2]

[0]

[5]

[3]

CR code

 

 

32h

30h

35h

33h

0dh

 

 

5 byte

 

 

 

 

 

 

 

 

 

 

Example 2: T.SIZE (Code 20 104 08)

[2]

[0]

[1]

[0]

[4]

[0]

[8]

CR code

 

 

32h

30h

31h

30h

34h

30h

38h

0dh

 

 

8 byte

 

 

 

 

 

 

 

 

 

 

 

 

 

The unit can identify following commands on next page.

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Image 29
Marantz CC4300N External Control Serial Interface RS-232C, Pin Assignment of the Connector, RS-232C Physical Specification