AT Commands

&Tn Self-test commands

These tests can help to isolate problems if you experience periodic data loss or random errors.

&T0 Abort. Stops any test in progress.

&T1 Local analog loop. This test verifies modem operation, as well as the connection between the modem and computer. Any data entered at the local DTE is modulated, then demodulated, and returned to the local DTE. To work properly, the modem must be off-line.

Result Codes:

OK n=0 CONNECT n=1 ERROR Otherwise

&V Display Current Configuration

This command displays the current configuration of the modem. If nonvolatile memory is supported the stored profiles are displayed as well.

&V View profiles.

&W Store current configuration

Saves the current (active) configuration (profile), including S-Registers.

The current configuration comprises a list of storable parameters illustrated in the &V command. These settings are restored to the active configuration upon receiving a Zn command or at power up. Refer to the &V command.

&W Stores the current configuration.

&Zn=x Store telephone number

This command is used to store up to four dialing strings in the modem’s nonvolatile memory for later dialing. The format for the command is &Zn=“stored number” where n is the location 0-3 to which the number should be written. The dial string may contain up to 34 characters. The ATDS=n command dials using the string stored in location n.

Result Codes:

OK n=0, 1, 2, 3 ERROR Otherwise

\Nn Error control mode selection

This command determines the type of error control used by the modem when sending or receiving data.

\N0 Buffer mode. No error control. \N1 Direct mode.

\N2 MNP or disconnect mode. The modem attempts to connect using MNP2-4 error control procedures. If this fails, the modem disconnects.

This is also known as MNP reliable mode.

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User’s Manual

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Toshiba U200 user manual Tn Self-test commands, Display Current Configuration, Store current configuration
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U200 specifications

The Toshiba U200 is a portable laptop that gained recognition for its combination of performance and versatility. Designed for both business professionals and everyday users, this sleek laptop integrates essential features that cater to a diverse range of applications.

One of the standout characteristics of the Toshiba U200 is its robust design, which balances portability with durability. Weighing in at just over 4 pounds, this laptop is easy to carry. Its compact dimensions make it an excellent choice for those who travel frequently, allowing for effortless transportation without compromising performance.

In terms of display, the U200 typically features a 12.1-inch widescreen LCD that delivers vibrant visuals and sharp text. The display supports a resolution that enhances clarity, making it suitable for multi-tasking, presentations, and media consumption. The screen's anti-glare coating helps to reduce reflections, making it usable in various lighting conditions.

Powering the Toshiba U200 is a series of Intel processors, which provide exceptional computing capabilities. Users can expect reliable performance for daily tasks such as web browsing, document editing, and even light multimedia work. The laptop's integration of DDR2 RAM ensures smoother operation, allowing the device to multitask efficiently.

Storage options for the U200 often include a combination of HDD or SSD configurations, offering sufficient space for documents, applications, and media files. Quick access and fast load times can be expected, especially with SSD options, which significantly enhance the overall user experience.

Connectivity is another strong point for the Toshiba U200. It typically comes equipped with multiple USB ports, an HDMI port for high-definition output, and a VGA port, ensuring compatibility with a range of devices and peripherals. Additionally, integrated Wi-Fi capabilities provide seamless internet access, while Bluetooth support allows for connecting wireless accessories conveniently.

Battery life is an essential consideration for mobile users, and the Toshiba U200's long-lasting battery ensures that users can work on the go without constantly needing to plug in. The laptop is engineered for energy efficiency, which helps to extend usage time between charges.

In summary, the Toshiba U200 stands out for its combination of portability, performance, and connectivity features, making it a reliable choice for users who require a functional laptop that fits into their active lifestyle. With a solid build quality and an array of technological advancements, the U200 remains a relevant option in the realm of portable computing.
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