Marantz PMD371 user guide

PMD371

RS-232 Serial Control

Professional 5 Disc CD Changer

Owners Manual

As found on pages 26-27 of the PMD371
User’s Guide.

English

1

The unit can receive external control signals by
connecting a straight cable on the market to the D-sub 9
pin connector for RS232C external control.

❖ Pin Assignment of the Connector

❖ RS232C Physical Specification

❖ 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)

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

The unit can identify following commands on next
page.

External Control (Serial Interface)
RS232C

Operations

1NC
2RX
3TX
4NC
5 GND
6NC
7NC
8NC
9NC

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

RS232C

15

69

[2] [0] [5] [3]

32h 30h 35h 33h 0dh

[2] [0] [1] [0] [4] [0] [8]

32h 30h 31h 30h 34h 30h 38h 0dh

CR code

5 byte

CR code

8 byte