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Corporations can create intracity integrated networks to improve on local networks. Guidelines are given for financing, planning, and designing such a corporate metropolitan network. The network can readily take advantage of new technologies while providing better services at a lower cost.

AT THE CORE OF THE MAC-VAX NETWORK Savvy MIS managers at VAX sites can welcome the Macintosh II with open arms and a tap onto Ethernet. Fortunately for these managers, […]

SATELLITES OFFER TELCOS A CHOICE SATELLITE technology has progressed from a means for baseball broadcasts and remote telephony to a prime method for corporate data distribution. Indeed, the flexibility of [...]

Implementation, testing, and monitoring of system ... monitor bit error rate ... system overlays present analog system permitting minimum installation costs.

A state machine handles back-end processing for clustered networks When a packet-switching integrated digital network (IDN), such as one conforming with CCITT Recommendation X.25, interfaces with a time-division-multiplexed (TDM) IDN, [...]

Fiber-optic transmitters and receivers enhance data-link performance Off-the-shelf fiber-optic transmitter and receiver modules provide designers with a cost-effective way to significantly improve data-link transmission performance. Available in matched sets or [...]

Everything is rosy for this interconnect Red Rose Systems Inc. was growing like a weed when its parent decided to look for a flexible communications system to handle voice and […]

With the recent explosion in the number of Internet subscribers and the growing demand for high-speed delivery of quality graphics and full-motion video comes an increased need for higher bandwidth […]

As clock speed increases, interconnection between processors for a large cluster of work-stations becomes increasingly difficult with conventional coax cables. Optical transmission is an important alternative for such systems and […]

A practical guide to using ISDN technology to develop a local loop special services transmission system Voice and data on a single twisted pair has been the rallying cry among […]

The trench digging may be spotty so far. But operators are connecting customers at blinding speed in some Asian markets. 'When' and 'Where' have superseded 'If' as the central questions [...]

If you doubt that a government agency can reinvent itself, keep an eye on the Commerce Department's National Technical Information Service. The fee-for-service agency is poised to become the central […]

Synchronous optical network (Sonet) rings are used to distribute broadband information. Sonet ring architectures can be path-switched, two-fiber-line switched or four-fiber-line switched. These present significant differences in cost-effectiveness, future expandability and management. A discussion of the options and their particular strengths in specific applications is provided.

The Army has begun installing the Defense Department's first metropolitan area network at Foret Monmouth, N.J. The Army MAN will link LANs located in different parts of a 1,365-acre area […]

Jack L. Finley figures it costs about $1.40 a month for a General Services Administration employee to send electronic messages to colleagues anywhere in the country. 'Our per workstation, per […]