Polycom RS-232 manual Redial -- Redial the Last Dialed Phone Number

Models: RS-232

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Example

Description

Status Message

Status messages for all the commands in the preset will

S01PRESETX18 Execute preset number 18. be generated first, followed by the message:

S01PRESETX18

8.137. REDIAL -- Redial the Last Dialed Phone Number

Executing this command causes the Vortex to redial the last number. The last number is defined as all the digits that were dialed since the phone was last taken off-hook. Like the DIAL command, if the

phone is not already off-hook, this command will take it off-hook automatically.

Example

Description

Status Message

S01REDIAL

Redial the last dialed phone number.

S01REDIAL

8.138. REFASGN -- Assign AEC Reference to Input Channel

This command assigns an AEC reference signal (R1 or EF Bus) to an input channel. Only input 1 has echo cancellation, so the command is only valid for that channel. Assigning 1 to the input channel selects AEC Reference 1 (R1). Assigning 3 to an input channel selects the EF Bus Reference. The EF Bus reference is an AEC reference that is placed on the EF Bus by one (and only one) of the linked Vortexes. See the BUSREF command for more information about the EF Bus reference. Assigning

REFASGN a value of 2 is not supported on this device. The value of 2 is only supported on devices that can build a second AEC reference (i.e., the EF2280, EF2241).

Although this command is a channel integer command, the increment and decrement operators (> and <) are not supported for this particular command.

This command is a channel integer command. See Section 6.3 and Section 6.2 for more information

on this type of command. The minimum and maximum values for this command are 1 and 3, respectively.

This command is saved to non-volatile memory only as part of a preset. The state of this command will be restored after power-up only if a preset is saved and that preset is set to be the power-on preset.

Example

S01REFASGN11

S01REFASGN1?

Description

Configure the AEC on input channel 1 to use AEC Reference 1 (R1).

Query which AEC reference is currently being used for the AEC on input channel 1.

Status Message

S01REFASGN11

S01REFASGN1x , where x is either 1, or 3 depending on which AEC reference is currently being used.

8.139. REFGAIN -- Set Reference Output Gain

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Polycom RS-232 manual Redial -- Redial the Last Dialed Phone Number, Refasgn -- Assign AEC Reference to Input Channel

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.