Modems ( MOdulator/DEModulator, Asynchronous Modems, and 56 Kbps Modems) Definition

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May 17, 2008

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Modems

-- 7 Vendor Reports | 13 Products

ALSO CALLED: MOdulator/DEModulator, Asynchronous Modems, and 56 Kbps Modems
DEFINITION: A modem modulates outgoing digital signals from a computer or other digital device to analog signals for a conventional copper twisted pair telephone line and demodulates the incoming analog signal and converts it to a digital signal for the digital device.

In recent years, the 2400 bits per second modem that could carry e-mail has become obsolete. …
Definition continues below.

Recent Vendor Reports on Modems
SRM-5AC, SRM-6AC sponsored by RAD Data Communications PRODUCT OVERVIEW: Posted: 31 Mar 2005 \| Published: 01 Feb 2005 SUMMARY: The miniature SRM-5AC and SRM-6AC are short range modems connecting full or half duplex asynchronous terminals to computers. TOPICS: Modems

SRM-3A sponsored by RAD Data Communications PRODUCT OVERVIEW: Posted: 31 Mar 2005 \| Published: 01 Feb 2005 SUMMARY: The SRM-3A is an ultra-miniature asynchronous short range modem connecting full duplex asynchronous terminals to computers. TOPICS: Modems

Promitel Carries Other Carriers across the Last Mile sponsored by RAD Data Communications CASE STUDY: Posted: 31 Mar 2005 \| Published: 01 Jan 2002 SUMMARY: Promitel installed an STM-16 SDH backbone network with seven main nodes in Barranquilla and five main nodes in Cartagena. TOPICS: HP OpenView \| Modems \| Multiplexers

SRM-5A, SRM-6A, SRM-6L sponsored by RAD Data Communications PRODUCT OVERVIEW: Posted: 31 Mar 2005 \| Published: 01 Feb 2005 SUMMARY: The miniature SRM-5A, SRM-6A and SRM-6L are asynchronous short range modems connecting full duplex, asynchronous terminals to computers. TOPICS: Modems

FOMi-E3, FOMi-T3 sponsored by RAD Data Communications PRODUCT OVERVIEW: Posted: 30 Mar 2005 \| Published: 01 Feb 2005 SUMMARY: The FOMi-E3 and FOMi-T3 are high speed fiber optic modems that extend the transmission range of electrical E3 or T3 over fiber optic cables FOMi-E3 for E3 rates and FOMi-T3 for T3 rates. TOPICS: Fiber Optic Networks \| Modems

SRM-5SC, SRM-6SC sponsored by RAD Data Communications PRODUCT OVERVIEW: Posted: 30 Mar 2005 \| Published: 01 Feb 2005 SUMMARY: The miniature SRM-5SC and SRM-6SC are short range modems connecting full or half duplex synchronous terminals, controllers and computers in point-to-point or point-to-multipoint applications. TOPICS: Modems

City of Burlington Uses RAD Equipment to Extend T1 Circuits over Fiber Optic Network sponsored by RAD Data Communications CASE STUDY: Posted: 30 Mar 2005 \| Published: 01 Jan 2004 SUMMARY: RAD's Optimux-4T1L units offered Burlington Telecom a simple and low cost way to transport four T1 circuits over a single fiber optic link. TOPICS: Fiber Optic Networks \| Modems \| Multiplexers

MODEMS DEFINITION (continued): … A modem modulates outgoing digital signals from a computer or other digital device to analog signals for a conventional copper twisted pair telephone line and demodulates the incoming analog signal and converts it to a digital signal for the digital device.

In recent years, the 2400 bits per second modem that could carry e-mail has become obsolete. 14.4 Kbps and 28.8 Kbps modems were temporary landing places on the way to the much higher bandwidth devices and carriers of tomorrow. From early 1998, most new personal computers came with 56 Kbps modems. By comparison, using a digital Integrated Services Digital Network adapter instead of a conventional modem, the same telephone wire can now carry up to 128 Kbps. With Digital Subscriber Line (DSL) systems, now being deployed in a number of communities, bandwidth on twisted-pair can be in the megabit range.
Modems definition sponsored by SearchMobileComputing.com, powered by WhatIs.com an online computer dictionary

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