To: Elroy who wrote (2473 ) 1/23/1998 10:50:00 AM From: Scrapps Read Replies (1) | Respond to of 9236
Aren't you the contumacious one Elroy! I don't know if you should be cyber slapped or given aid in you knowledge quest. Now if you don't agree with me that's fine, however I have supported my opinion and position by providing the source which I base it on, SO if you disagree with it, again that's fine, BUT could you provide something to support your opinion...rather than just restating it please? I am very clear as to what you think. Now here is a link for you to look around at, just click on the links on the left of the page. If you don't agree with it, take it up with them or provide something to support your opinion. Here's some information:aware.com Aware's ADSL Transceiver Module is a "plug and play" ADSL transceiver on a 3 inch by 5 inch printed circuit card. It is intended to facilitate the rapid integration of ADSL into data networking and telecommunications equipment. With a serial data interface, the ADSL Transceiver can easily be integrated into a variety of types products for the central office and customer premise ends of the ADSL connection. The standard module is part number AW-910. The AW-910 module contains all of the digital and analog IC components required to implement the ADSL transceiver. The core of the module is the Analog Devices AD20msp910 ADSL chip set, which was co-developed by Analog Devices and Aware. This chip set implements a complete discrete multitone (DMT) based ADSL transceiver as specified in ANSI T1.413. The AW-910 is an ideal way to integrate ADSL into data communications systems. As a ready to use DMT transceiver, it allows our OEM customers to concentrate on developing the overall system and leaves the ADSL piece to Aware. It is ideal for systems that will use multiple xDSL access technologies. The data interface for the ADSL Module consists of two channels; one simplex and one duplex. The simplex channel is designed to operate in the downstream (CO to RT) direction only. This high speed channel carries data at rates up to 8 Mbps. Note that the simplex transmit channel is only present on modules configured for CO. Similarly the simplex receive channel is only present on modules configured for RT. The second channel is a duplex channel, that carries data at rates up to 768 kbps. Both the CO and RT modules have a duplex transmit and receive channel. A synchronous serial port is provided that is used to communicate control and management information between a host system and the module. This access to the chipset on the module is via the ADSP-2183 digital signal processor. This communication uses Aware's message protocol, and provides the user with a mechanism to customize certain functionality and management features onto their products. Specific features of this control interface are: Allows user to specify one to four data rate parameter options per T1.413 Provides single interface for data rate configuration, control, and diagnostic info Rate adaptive control: User can specify min or max data rate, margin, or downstream to upstream ratio Provides user interface for EOC data Provides low speed channel for communication between management processors at both ends of the ADSL link Features Rate adaptive in 32 kbps increments, up to 8 Mbps downstream and 768 kbps upstream Performs all digital signal processing and initialization processing, minimizing the impact on the host system Host port provides a rich set of management information regarding status and performance of the link Provides a parallel interface for software download from the host to the transceiver module, thus enabling rapid and easy code management ÿ Specifications Modulation: Discrete multitone (DMT) Max downstream data rate: 8 Mbps (Rate Adaptive) Max upstream data rate: 768 kbps (Rate Adaptive) Power supply requirements: +3.3V (for digital power) +5V (for analog power) ñ15V (for line driver) Power dissipation: RT: 4.0 watts CO: 4.5 watts Board dimensions: 3 in x 5 in (7.6 cm x 12.7 cm) Operating temperature: 0 to 40 deg C Regulatory compliance: Bellcore GR-1089 FCC part 15 and part 68 UL1950 ----------------------------------------------------------------------------------------------------------------------------------------------------- Aware develops custom software and hardware interfaces for its ADSL chipset which can be used to connect the chipset with PCs, network and central office equipment, and other telephony and data communications devices. The interfaces are custom developed by Aware for OEMs, who seek to incorporate Aware's ADSL technology into their systems. ----------------------------------------------------------------------------------------------------------------------------------------------------- These are platforms that are used by OEMs to assist them in integrating chipsets and/or modules into their systems. The development platforms allow OEMs to isolate the ADSL aspect of their system to a well-known entity. They are also convenient for receiving software upgrades and gathering data for system diagnostic purposes. Overview Aware's ADS-910 ADSL transceiver module development system provides OEMs and system integrators with a platform for evaluating the performance of Aware's AW-910 ADSL transceiver modules. The ADS-910 is a single platform that provides for a wide range of tests, including ADSL line testing and bit error rate testing. The platform includes facilities for interfacing to a serial port on a personal computer for diagnostics, management and data rate provisioning. Aware has been using the ADS-910 for software development and characterization of the AW-910 modules. Customers using the same platform have the benefit of fixed, predictable operation of Aware's AW-910 ADSL transceiver modules. Such a test environment reduces variability during subsequent system integration phases. Applications Bit error rate testing Bit-error-rate testing (BERT) can be easily implemented on Aware's AW-910 modules using the ADS-910. In this configuration, a bit error rate tester (such as the TTC Fireberd 6000) acts as the data terminal equipment (DTE) and the modem pair acts as the data communications equipment (DCE). Testing can be performed in one direction path of the modem pair at a time, or simultaneously in both directions. Host management A 9-pin serial port is provided for asynchronous communication with a host personal computer. This provides the user with an interface to extract status and diagnostic information, and allows the user to implement management and control functions. The ADS-910 is accompanied with PC software that analyzes and displays the desired management information. This information is extracted from the ADSP2183 digital signal processor on the transceiver modules. POTS splitters The ADS-910 is equipped with CO and RT POTS splitters. These POTS splitters allow the user to simultaneously test ADSL data and voice band operations. Features V.35 and TTL data network interface V.35 and TTL bit error rate test interface Provisions for an optional POTS splitter On-board power provisions with external AC adapter Asynchronous host management interface to standard personal computer serial port Full access to Aware firmware/hardware diagnostics ----------------------------------------------------------------------------------------------------------------------------------------------------- Aware currently provides a number of wavelet based image compression products appropriate for use in high quality, bandwidth sensitive applications. Ranging from our general purpose AccuPress for Multimedia to the fingerprint specific WSQ by Aware product, Aware's compression software delivers a high performance, high quality solution in an easy to integrate package. Available as callable libraries, Photoshop plugins and WEB browser plugins, Aware's compression solutions can be quickly and seamlessly integrated into existing applications and systems. EFTS by Aware WSQ by Aware AccuPress for Photoshop AccuPress for Multimedia SeisPact AccuPress for Remote Sensing AccuPress for Radiology Aware's wavelet compression products employ a class of algorithms totally different from those used in ADSL and related xDSL systems. Our wavelet compression technology involves the use of lossy image compression, and is only useful for a select class of data such as digital images and video. As the name lossy suggests, wavelet compression introduces an irretrievable degree of loss into images and video and is unacceptable for general purpose use.