CS/CR hardware flow control

 

Typical Host

 

PMD351

 

 

 

RTS send

 

CS out

Not Busy

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Normal)

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Busy

H

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Timing chart

RTS

CTS

RxD

TxD

Control commands:

The control command packets have a data length of 7~10 bytes. ASCII codes from 0x00 to 0x7f are used to receive serial data. At the transmission end, take steps to convert the ASCII codes into HEX data to set the data in the data packets. CR (0x0d) is added as the data packet delimiter.

Example: Reception Time command (ASCII code @12011)

@

1

2

0

1

1

CR

0x40 0x31 0x32 0x30 0x31 0x31 0x0d

When transmitting commands consecutively, put more than 100ms blank between commands.

Status data transmission:

The status data packets have a fixed data length of 8 bytes. ASCII codes from 0x00 to 0x7f are used to transmit serial data. For this reason, the ASCII codes are converted into HEX data before the data is set in the data packets and transmitted. CR (0x0d) is added as the data packet delimiter.

Example: Transmission "Power ON" (ASCII code @120PRON)

@

1

 

2

 

0

 

P

 

R

O

 

N

 

CR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0x40

0x31

 

0x32

 

0x30

 

0x50

 

0x57

0X4f

 

0x4e

 

0x0d

RC-5 CODES

If you have a remote control Model RC30, (not sup- plied – available from Marantz Professional) this unit receives the codes listed in the table below from the infrared remote control sensor 11 on the front of the unit.

Remote control codes (RC-5)

Command

 

Code

 

 

 

 

 

 

CD Player

Tape Deck

0

 

2000

1800

1

 

2001

1801

2

 

2002

1802

3

 

2003

1803

4

 

2004

1804

5

 

2005

1805

6

 

2006

1806

7

 

2007

1807

8

 

2008

1808

9

 

2009

1809

Time

 

2011

 

Recall

 

2015

 

Repeat

 

2029

 

Next

 

2032

1832

Previous

 

2033

1833

Pitch Reset

 

2037

 

Pitch Up Start

 

2038

 

Pitch Up Stop

 

203801

 

Pitch Down Start

 

2039

 

Pitch Down Stop

 

203901

 

Program/Memo

 

2041

1841

AMS

 

2043

1843

Open/Close

 

2045

 

Pause

 

2048

 

Clear

 

2049

 

Fast Backward Start

 

2050

1850

Fast Backward Stop

 

205001

 

Fast Forward Start

 

2052

1852

Fast Forward Stop

 

205201

 

Play

 

2053

1853

Stop

 

2054

1854

A-B

 

2059

 

Direction

 

 

1847

REC Mute

 

 

1842

REC

 

 

1855

ENGLISH

- 21 -

Page 21
Image 21
Marantz PMD351 manual Control commands, Status data transmission, RC-5 Codes

PMD351 specifications

The Marantz PMD351 is a compact, high-performance portable audio recorder that has made a significant mark in the industry with its blend of advanced technology and user-friendly features. Designed predominantly for field recording, the PMD351 is an ideal choice for journalists, musicians, and sound engineers seeking a reliable solution for capturing high-quality audio on the go.

One of the standout features of the Marantz PMD351 is its dual-format recording capability. It supports both WAV and MP3 formats, allowing users to select the audio quality that best fits their needs and storage requirements. With the ability to record in WAV format at 24-bit/96 kHz, the PMD351 captures sound with remarkable clarity and detail, making it suitable for professional-grade applications.

The device is equipped with dual XLR/TRS inputs, which provide versatile connectivity options for various microphones and instruments. This flexibility allows users to capture sound from different sources with ease. Additionally, the PMD351 includes phantom power support, making it compatible with condenser microphones that require external power, further expanding its recording capabilities.

An easy-to-read color LCD screen is a key characteristic of the PMD351, offering clear visibility of recording status, levels, and file management. The intuitive user interface allows for quick navigation through menus and settings, which is particularly beneficial during live recording sessions where time is of the essence.

The PMD351 also boasts onboard features such as an integrated limiter and low-cut filter, which help to mitigate distortion and reduce unwanted low-frequency noise, respectively. This ensures that recordings maintain a professional quality even in challenging acoustic environments.

For added convenience, the Marantz PMD351 is powered by either AA batteries or an external power supply, giving users the flexibility to record for extended periods without interruption. The lightweight and portable design makes it easy to carry, enabling users to take it anywhere and capture high-quality audio whenever and wherever necessary.

In conclusion, the Marantz PMD351 is a feature-rich portable audio recorder that excels in both performance and usability. With its dual-format recording capabilities, versatile connectivity options, and innovative onboard features, it is an essential tool for anyone looking to achieve outstanding audio quality in a wide range of settings. Whether used in journalism, music production, or field research, the PMD351 stands out as a reliable and effective recording solution.