Modem and AT commands, GSM data communication

•Transfer data and access the Internet or an intranet with a PC, PDA or handheld device connected via Bluetooth wireless technology, infrared or cable.

•Data and voice

•Maintain a data connection, for example, a con- stant connection to an e-mail system when con- ducting a voice call.

•Provide settings

•Receive GPRS configuration settings from the provider over the air, OTA, making manual con- figuration unnecessary.

•User controlled settings

White Paper Z600

•Take advantage of full user control in the data connections menu, establishing multiple descriptions and accessing advanced settings for GPRS.

Interruption of GPRS data account

When the user is browsing with a Z600 the GPRS connection will be automatically disconnected when an incoming call is received. This is the default behaviour. However, it is possible for opera- tors to customize the phone in such a way as to ensure that the user is asked if they wish to remain connected when an incoming call is received.

Modem and AT commands

The Z600 contains a complete GSM/GPRS modem. This provides data and e-mail communi- cation, as well as Internet/intranet access, for a connected PC, PDA or handheld device. Once the PC/PDA is connected to the phone using a cable, Bluetooth wireless technology or infrared, and the appropriate software is installed, the modem in the phone works in a similar way to a PC Card modem, or an external modem.

In the Z600, AT commands are used for:

•controlling the data communication between the PC and the remote service

•configuring and requesting settings and behav- iours in the phone, from a connected PC or PDA

GSM data communication

The built-in data capability turns the phone into a modem when connected to a PC/PDA. The Z600 offers the user data connection anytime, anywhere, unmatched by fixed telephone networks. Each GSM channel is divided into eight repeating time slots. A normal GSM voice or data call is circuit switched, and only one time slot is used for each call. The data speed is therefore limited to 9,600 bps.

High Speed Data gives a faster speed

High Speed Data (HSCSD) increases speeds for circuit switched data by allowing the phone to use a coding scheme with a high capacity, and to use two time slots for receiving data. The download speed is increased to up to 28,800 bps. The speed for sending data is limited to 14,400 bps. The data rate can be increased several times by the use of

rate adaption, interworking with ISDN. This also provides additional features, such as quick call set- up capability.

GPRS enables constant connection and high speed

With GPRS, the connection is maintained “con- stantly”, and data is transmitted in packets. Pricing of GPRS can be dependent on the actual use of bandwidth, which means very low cost when no data is sent or received, while the phone remains connected. When transmitting large amounts of data, bandwidth can be increased automatically to allow faster transmission speed, up to 85,600 bps download speed.

32	September 2003

Z600 specifications

The Tannoy Z600 is a remarkable loudspeaker that embodies the company’s commitment to high-performance audio, blending classic craftsmanship with innovative technologies. Designed for both professional and home listening environments, the Z600 serves as an exemplary model in Tannoy’s extensive range of audio solutions.

One of the standout features of the Z600 is its dual-concentric driver design. This technology has been a hallmark of Tannoy's engineering for decades, ensuring that sound is emitted from a single point source. This results in an incredibly coherent soundstage with exceptional imaging, allowing listeners to experience audio with a sense of depth and clarity that is often absent in traditional speaker designs.

The Z600 further enhances its audio reproduction capabilities through the use of high-quality drivers. It houses a 6.5-inch bass driver paired with a 1-inch high-frequency driver. The combination enables the speaker to handle a wide frequency range, delivering rich bass tones while maintaining crystal clear highs. The speaker's crossover design is meticulously crafted to ensure seamless integration between the bass and treble drivers, which contributes to a balanced and natural sound signature.

Equipped with a robust MDF cabinet, the Z600 is designed to minimize unwanted resonances and provide a solid base for sound reproduction. The cabinet's architecture is complemented by a stylish finish, available in various veneers, allowing it to blend well with any modern or classic décor.

Installation options are versatile, featuring bi-wiring capabilities that enhance the speaker's performance. This feature allows for separate connections to the bass and treble drivers, optimizing audio quality and enabling advanced customization based on user preference.

Another notable characteristic of the Tannoy Z600 is its wide dispersion pattern. This attribute ensures that sound remains consistent and clear even when listening from different positions in the room. This makes the Z600 an excellent choice for both casual listening and critical monitoring in professional setups.

With its combination of innovative technologies, premium materials, and expert craftsmanship, the Tannoy Z600 stands out as a top-tier choice for audio enthusiasts. Whether for home entertainment or studio monitoring, it offers a listening experience that is both engaging and immersive, making it a worthy addition to any audio system.