Command Descriptions

Format

:

Integer KL

Explanation

:

The command enables/disables the remote control, the external switch

including power control functin, mouse and accessing to the front panel buttons. The default value is 0 (OFF) thus the player is unlocked.

If the key lock switch is set to 1, all buttons (front panel including power and remote control) external switch control including power control and mouse control are disabled. Use this setting for a PC-controlled player to lessen interference from outside sources such as remote control units.

If the key lock switch is set to 2, only the tray open button/key is disabled and the OP command no longer controls the tray. Thus, after powering off the player, the locked tray protects the disc from unauthorized personnel.

Argument

Function

0

Unlock

1

Locks all keys include power

2

Locks only tray open

Execution :

 

 

 

Command String

Status Return

DVD-V7200

 

 

 

 

 

1KL<CR>

R<CR>

Key Lock ON

 

OKL<CR>

R<CR>

Key Lock OFF (unlocked)

 

2KL<CR>

R<CR>

Tray Open Lock ON

5.37Stack Group Set (DVD)

Function : Set Stack Group (Video Blackboard Stack or Barcode/Command Stack)

Format : Integer GP

Explanation : The command sets the stack group (Video Blackboard Stack or Barcode/Command Stack) for execution or access. It is added in conjunction with the BS (BARCODE/COMMAND STACK PLAY) or the VS (VIDEO BLACKBOARD DISPLAY) command (see following sections).

1 to 300, decimal system integer number is used in its argument.

5.38Barcode /Command Stack Play (DVD)

Function

:

Execute Barcode/Command Stack from specific step

Format

:

Integer BS

Explanation

:

The command executes the Barcode/Command stack group from

specific step after the GP command specifies the group number.

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Image 41
Pioneer RS-232C manual Stack Group Set DVD, Barcode /Command Stack Play DVD

RS-232C specifications

The Pioneer RS-232C is a significant component in the realm of communication technology, especially known for its application in serial communications. Initially introduced in the 1960s as part of the EIA-232 standard, RS-232C has evolved through various iterations to become a foundational interface for connecting data communication equipment (DCE) with data terminal equipment (DTE). This article outlines its main features, technologies, and characteristics.

One of the hallmark features of RS-232C is its ability to facilitate point-to-point communication. It allows for a direct link between two devices, making it suitable for a variety of applications, including modems, printers, computers, and other peripherals. The RS-232C interface typically uses a 25-pin connector, although a 9-pin variant is also common in many modern devices. This interface is based on serial communications, where bits are sent sequentially over a single channel, leveraging fewer wires compared to parallel communication methods.

In terms of technology, RS-232C operates primarily at voltage levels of +12V to -12V, which provide the necessary signaling for data transmission. The standard supports baud rates ranging from 300 to 115200 bps, accommodating various data transfer speeds depending on the needs of the hardware involved. RS-232C defines various electrical characteristics and timing requirements, ensuring robust performance over relatively short distances, typically up to 15 meters, depending on the baud rate.

Another essential aspect of the RS-232C standard is its use of asynchronous communication, allowing devices to transmit data without having to synchronize their clocks. Each data packet typically consists of a start bit, a predefined number of data bits (usually 7 or 8), an optional parity bit for error-checking, and one or more stop bits. This method allows for error detection and ensures data integrity during transmission.

Despite its age, the RS-232C interface remains relevant, especially in industrial applications, instrumentation, and legacy systems. Its simplicity, low cost, and widespread acceptance make it a versatile choice for connecting various devices, even in a world increasingly dominated by USB and other modern interfaces.

In conclusion, the Pioneer RS-232C is a remarkable testament to the enduring nature of serial communication technology. Its straightforward design, reliability, and ease of integration continue to make it a staple in numerous applications, underscoring its significance in the landscape of data communication.