We, the Manufacturer or our representatives may use your personal information to contact you to offer support for your design activity and for other related purposes. Modem companies quickly incorporated v. While it would have been possible to use some of these pins for the sort of command-switching they needed the “ready” indications, for example, would have sufficed Heatherington instead came up with the idea of using a rarely seen sequence of characters for this duty. When this was received from the computer, the modem would switch from data to command mode. The new design, housed in an extruded aluminum case sized to allow a standard desktop telephone to rest on top, was announced in April If need be the user can set the default to either K56Flex or V.

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Of course it was entirely possible that the computer would send this sequence for other reasons, for example, the sequence might be contained within a text file describing how modems worked.

Through 30 dial-ups the Accura consistently achieved a 44K connection, no more, no less. I searched for a fix at the Hayes tech support archive without success.

Hayes Accura V.90/K56Flex Internal and External Data/Fax Modems

After dialing their local Internet service providerthe user could “call out” at high speed to services around the world, so the need for long-distance data calls was generally eliminated. The Accura 56K loaded web pages much more crisply than the average They then split their line into the Accura and Optima brands, offering the Accura as a low-cost model, although the hqyes sets were not that different between the two lines.


However Express 96 both was late to market and lacked error correctionmaking it far less attractive than its competition. The widespread introduction of ADSL and cable modems in the mids repeatedly drove the company in Chapter 11 protection before being liquidated in Along with the driver issue, the test Accura external also has a tendency to keep the red “CD Carrier Detect ” LED lit even though the modem was clearly off-line.

Although powerful, the internal moddm was commercially impractical.

Hayes Technical Support: ACCURA V/V 56K External

Heatherington retired from what was then a large company in This just goes to show you what these modems can do under the right conditions! The name referred to the way the modems could “ping-pong” the single high-speed link between the two ends on demand, in a fashion similar to the USR and Telebit protocols. Ahyes up now Username Password Remember Me.

Modem companies quickly incorporated v. Add to a parts list. This smart modem approach dramatically simplified and automated operation.

Not only did it require special driver software, but a different hardware design was needed for every computer busincluding Apple II, S, TRS mocem, and others. Save to an existing parts list Save to a new parts list.

Hayes left the Georgia Institute of Technology in the mids to work at an early data communications company, National Data Corp, a company that handled electronic money transfers and credit card authorizations. Do avoid the internal version of the Accura modem until I find out whether its driver problem is unique to my test unit. The foregoing nodem relates to product sold on, or after, the date shown below.

HAY Hayes Microcomputer Prods | ACCURA 56K MODEM EXT. | | RS Components

Installation of the external Accura went fairly smoothly. Log in Don’t have an account? A number of manufacturers banded together and introduced the Time Independent Escape Sequenceor TIES, but it was not as robust as Heatherington’s system and never became very successful. They remained a major vendor throughout the s, periodically introducing models with higher throughput.


hayee In the end, only two non-modem devices were added to the line. Another confuses the original Smartmodem with the later V-Series modems, reversing the introduction dates and features.

As speeds increased with the introduction of V.

By clicking the accept button below, you agree to the following terms. Hayes’s slow entry into the high-speed market led to a fracturing of the command set. What was needed was a single modem that could do it all; connect directly to the phone, answer incoming calls, dial numbers to initiate outgoing calls, and hang up when the call was complete. The Accura modems are set to auto-detect either standard and adjust themselves accordingly.

Hayes Microcomputer Products

This could be addressed in internal modems that plugged directly into the computer’s motherboard. By using this site, you agree to the Terms of Use and Privacy Policy. In this case it could be safely assumed that the sequence was being sent nodem by a user, as opposed to being buried in the middle of a data stream.