Based on international standards, the X-600 can provide a wide range of user-selectable line lengths. This passive design allows the simultaneous operation of Broadband and POTS (Plain Old Telephone Services), allowing a complete assessment of product performance to be made.
 | Evaluate the performance of ADSL and other broadband modems |
| X-600 is characterized to international standards |
| Passive low-noise design with POTS capability |
| Low-cost for production and development use |
| Available in a range of line types |
| Port for injection of noise and other impairments |
High-speed modems based on such technologies as ADSL represent the leading-edge of access technology over copper loop telephone lines. By using high power carriers, sensitive receivers and powerful DSP hardware and software, it is possible to transmit high bit-rate signals carrying video, data and speech applications. Additionally, it is a normally a requirement that the established conventional telephone services can operate as normal, at the same time, on the same line.
The maximum speed of data that ADSL modems can work at, is primarily set by the characteristics and length of the line, over which the data is sent. As the attenuation in these lines increases, the data throughput will be correspondingly reduced.
Designers and specifiers of ADSL modems will need to be able assess the performance of modems under well-defined conditions.
Manufacturers will need to test products, to ensure that the critical circuitry will operate as the designer intended.
The X-600 has been designed as a low-cost, portable unit suitable for both product evaluation testing and production testing. It is based on international standards and is a completely passive design to give a low-noise solution capable of carrying the feed voltages, currents and signalling which are present in the POTS channel.
A port is also provided for the introduction of well-defined impairments such as white noise.
Summary Technical Specification X-600-4M*
Wire type 0.4mm (ANSI T1.413, ETSI ETR 328)
Length 0 - 5.7km in steps of 300m
Maximum current 127 mA
Maximum Voltage 400V peak
Valid frequency range 0 - 1.1MHz
I/P port for noise etc
. 75 ohm, maximum level 15dBm unbalanced* other wire types are in preparation
* enquiries for custom designs are welcome
Specifications subject to change without notice.To download the X-600 manual go to X-600 Support
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© Electron Parametrics Ltd 2002. This document may be reproduced in whole or in part provided that this copyright notice is reproduced on each copy made.
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