Polycom RS-232 manual Command List, Miscellaneous Commands

Models: RS-232

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It is also possible to use the wildcard character ('*') to specify ranges of crosspoints with the matrix commands. The only restriction is that you can only use a wildcard to specify the input or output, but not both simultaneously. Thus you could specify all the inputs going to a specific output (one column) or the value of an input to all of the outputs (one row), but not the entire matrix. One example of using a wildcard for an integer matrix command would be ' S04MGAINSG,*,0 '. This will set all the crosspoints in the signal generator row of the main matrix to 0 dB. Thus, the signal generator will be added to all of the outputs of the main matrix with a gain of 0 dB. In this case a status message will be generated that looks like ' S04MGAINSG,*,ääääääääää '. The binary representation used here is the same method described in Section 6.3.

You can also use the wildcard character to set the crosspoints of a row or column individually. For example, 'S04MGAIN1,*,äzzzxxxxxx' sets the crosspoints of input 1 to 0 dB for output 1, -10 dB for outputs A, B and T, and -12 dB for outputs R1, P, and W-Z. In this case, the EF2211 will respoind with a status message of 'S04MGAIN1,*,äzzzxxxxxx'.

Queries using the '?' character work in the usual manner. For example, ' S04MGAIN1,A,? ' might

return ' S04MGAIN1,A,-6 ', while ' S04MGAIN1,*,? ' might return ' S04MGAIN2,*,ääääääääää '.

Boolean matrix commands work as you would expect. They use the characters '0', '1', and '2' as described in Section 6.1. Here are some examples.

' S04MMUTE1,A,1 ' mutes crosspoint (1, A) of the main matrix. In other words, the signal at input 1 will not be heard on output A A status message will be generated of the form '

S04MMUTE1,A,1 '.

'S04MMUTEA,*,1110000000' sets the mutes for input A of the main matrix. The signal path from input A to outputs 1, A, and B is muted, while the signal path from input A to outputs T, R1, P, and W-Z is unmuted. The EF2211 will respond with a status message of 'S04MMUTEA,*,1110000000'.

'S04MMUTEA,*,2' toggles the mutes for input A of the main matrix. If this command follows after the command in the above example, the EF2211 will respond with a status message of 'S04MMUTEA,*,0001111111'.

'S04MMUTEA,*,?' queries the status of the mutes for input A of the main matrix. If this command follows after the commands in the above examples, the EF2211 will respond with a status message of 'S04MMUTEA,*,0001111111'.

6.5. Miscellaneous Commands

Miscellaneous commands are those that don't fall under any of the other categories. See the description of a given command for specific details on how it operates.

7. Command List

The following table is a list of the commands recognized by the EF2211 Detailed descriptions of each command are given in the next section.

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Polycom RS-232 manual Command List, Miscellaneous Commands

RS-232 specifications

Polycom RS-232 is a key interface utilized in various communication and audiovisual systems, enabling effective integration between different devices. This technology employs a standard serial communication protocol that allows for robust control and communication, particularly in environments that require sophisticated audiovisual setups.

One of the main features of Polycom RS-232 is its ability to facilitate point-to-point communication over distances of up to 50 feet without the need for a repeater. This long-range connectivity is essential in large conference rooms and auditoriums where devices are often spread out over considerable distances. The serial connection is often more reliable than wireless options, which can be susceptible to interference.

Another notable characteristic is its versatile compatibility with a range of devices, including cameras, projectors, and interface panels. This allows users to control multiple devices from a single point, streamlining the operation of complex setups. The straightforward nature of RS-232 commands simplifies integration, which is a significant benefit for both installers and end-users.

Polycom RS-232 also supports various baud rates, giving users the flexibility to optimize communication speed based on their requirements. This adaptability ensures that users can achieve the desired performance, whether they are managing basic functions like power and volume control or more complex commands for switching video sources or adjusting settings.

The technology also features error-checking capabilities, which contribute to its reliability in communication. This reduces the likelihood of issues during operations, ensuring that commands are correctly received and executed. Additionally, its structured protocol aids in diagnosing and troubleshooting, making it easier to manage any issues that arise.

With its robust nature and proven reliability, Polycom RS-232 remains a pivotal technology in the realm of audiovisual communications. Its combination of long-range capabilities, compatibility, flexibility, and reliability makes it an essential tool for enhancing the efficiency of modern communication environments. As technology continues to evolve, the importance of dependable interfaces like Polycom RS-232 cannot be overstated, ensuring seamless integration and operation of sophisticated communication systems. Whether used in educational institutions, corporate environments, or event venues, Polycom RS-232 guarantees a streamlined experience in device management and control.