Command ID #7: Miscellaneous Commands

Function:

These commands have the same function regardless of media type.

However, their effect is dependent on current state of the unit.

Command ID #8: Menu Navigation Commands

Usage:

These commands can be used to navigate the unit’s menus. Note that available menus are highly dependent on media type and state of the unit.

Command ID #9: Poll Status Command

Function:

This command will request the return of the status byte from the unit. See RS-232 specifications for format and meaning of the status byte.

Usage:

This command can be used to retrieve basic information about the current status of the unit.

RS232-Interface Usage Details –

The RS-232 interface has a first-in-first-out (FIFO) buffer which will allow 15 full-length commands to be received in direct succession. Commands are executed in the order

in which they are received with approximately a ½ second delay between each command.

After a command is executed, it is removed from the buffer, making room to receive another command. If the buffer is full, any command received is ignored.

For consistent results, no more than 15 commands should be sent in direct succession. If a longer string of commands is necessary, a minimum of ½ second delay should be added before sending additional commands.

Example for sending a long string of commands: [Command 1]

[Command 2] [Command 3]

.

.

[Command 15 ] [Delay ½ sec] [Command 16 ] [Delay ½ sec] [Command 17 ] [Delay ½ sec]

At most, it will take approximately 10 seconds for the RS-232 interface to

execute all of the commands stored in a full command buffer. Overloaded buffers can cause the unit to freeze with respect to RS-232 commands. If this occurs the unit must be rebooted.

Data errors can occur in asynchronous data transmission. Parity checking is not supported in the interface and unexpected operation can occur due to data errors. However, invalid commands are ignored. For this reason, using the IR equivalent command should be avoided if possible because the RS-232 interface will perform no error checking on the data to be sent via the IR data bus.

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Bel Canto Design PL-1A manual RS232-Interface Usage Details
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PL-1, PL-1A specifications

Bel Canto Design has long been synonymous with high-performance audio equipment, and its PL-1A and PL-1 models are no exception. These preamplifiers stand out in the world of high-fidelity audio for their refined technology, elegant design, and exceptional sound quality.

The Bel Canto PL-1A is a state-of-the-art digital preamplifier that caters to audiophiles demanding precision and versatility. It features a fully balanced signal path, which helps to minimize noise and distortion, ensuring that the music signal remains pure and unaltered. The PL-1A employs advanced digital signal processing technology, which not only enhances the audio performance but also provides a range of connectivity options to accommodate various audio sources.

One of the standout features of the PL-1A is its high-resolution asynchronous USB input, allowing users to connect their computers or digital audio players seamlessly. This input supports high sample rates, making it ideal for high-definition audio formats. Additionally, it includes multiple digital inputs such as coaxial and optical, along with analog inputs, providing flexibility for integrating different audio components.

The PL-1A also comes with an intuitive user interface, making it easy to navigate through the various settings and options. The remote control allows users to adjust volume levels, select inputs, and control other features without the need to get up from their listening position, enhancing the overall convenience.

The design of the PL-1A is not just functionally excellent but also visually appealing. Its sleek chassis is made of high-quality materials, giving it a premium look and feel that complements any audio setup. The attention to detail in both the design and craftsmanship ensures that it not only performs exceptionally well but also stands the test of time.

On the other hand, the Bel Canto PL-1 serves as a more traditional analog preamplifier, offering a warm, rich sound that many audiophiles crave. It features a robust power supply, low-noise circuits, and high-quality components that contribute to its stellar audio performance. The PL-1 is designed for both vinyl enthusiasts and digital audio lovers, providing inputs for turntables as well as digital sources.

Both models embody Bel Canto Design’s commitment to quality, innovation, and state-of-the-art audio technologies, making them ideal choices for anyone looking to elevate their listening experience. With their advanced features, aesthetic appeal, and superior sound quality, the Bel Canto PL-1A and PL-1 preamplifiers promise to satisfy even the most discerning audiophiles.
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