| Computer Desktop Encyclopedia: 1-Meg Modem |
A data access device from Nortel Networks that provides up to 960 Kbps downstream and 120 Kbps upstream over a standard telephone line. It uses 10Base-T Ethernet to connect to the computer, while an RJ-11 passthrough allows a phone, fax or analog modem to use the line simultaneously.
Download Computer Desktop Encyclopedia to your iPhone/iTouch
| 5min Related Video: 1-Meg Modem |
| Wikipedia: 1-Meg Modem |
The 1-Meg Modem in telecommunications was[1] a DSL modem created by Nortel which conforms to the ADSL Lite standard.[2] The 1-Meg Modem was the first xDSL modem to gain approval and registration under FCC Part 68 Rules.[3]
Contents |
The 1-Meg Modem can be deployed up to 18,000 feet (5,500 m) from the central office providing a downstream rate of 960 kilobits per second (kbit/s) and a maximum upstream rate of 120 kbit/s over 24 gauge wire. The second generation could achieve a transfer rate of 1280 kbit/s downstream and 320 kbit/s upstream.[4] Unlike most ADSL modems which use ATM virtual circuits to carry data the 1-Meg Modem uses Ethernet which makes the product easy for most residential users to install themselves but ill suited for applications that require quality of service to be enforced. At the telephone company switch the installation was relatively simple provided the switch was a Nortel DMS Switch.[5] The customer's line card must be swapped with a line card that supported the 1-Meg Modem and also a card must be added to the drawer that would manage all data from the 1-Meg Modem cards in the drawer.
At the time the modem was released telephone companies were fearing competition from cable modems however current DSL technology was too costly for wide deployment. By October 1998 Nortel claimed more than $1 billion in sales which, in their words, had "the potential for more than one million end-user lines." [6] It was originally tested at Northern Illinois University dormitories and worked well even though the school's wiring was relatively old.[7][8]
 |
This computer network-related article is a stub. You can help Wikipedia by expanding it. |
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
 | Nortel |
 | Why is an ADSL modem not a true modem? Read answer... |
| What is a null modem? Read answer... |
| What is a modem connected to? Read answer... |
 | Which modem uses a telephone modem? |
| What is the fastest Modem? |
| What does a modem mean? |
Copyrights:
 |
 | Computer Desktop Encyclopedia. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher. © 1981-2010 The Computer Language Company Inc. All rights reserved. Read more |
 |
| Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "1-Meg Modem". Read more |
