Heatherington retired from what was then a large company in Like most inventions, the AutoSync technology was developed to address a need – Remote synchronous communications users needed an easier, less complex way of setting up a remote PC-to-host connectivity. As speeds increased with the introduction of V. Misc Sep 13, Hayes was a computer hobbyist, and felt that modems would be highly compelling to users of the new 8-bit computers that would soon be known as home computers. By using standard modem control signals, AutoSync 2 modems are able to “buffer” data as it is transmitted which in turn allows for higher data rates, more reliability, and less re-transmissions. Although powerful, the internal modem was commercially impractical.

Uploader: Tele
Date Added: 27 January 2006
File Size: 15.45 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 24511
Price: Free* [*Free Regsitration Required]

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.

Maximum synchronous speeds of many adapter cards is limited to bps or As early as he started efforts to produce consumer-ready ISDN “modems”, betting the company on ISDN becoming a widespread standard—which was widely believed at the time.

CQ software products install easily in only a few minutes.

Not only did it require special driver software, but a different hardware design was needed for every computer busincluding Apple II, S, TRSand others. 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.

CQ remains the only third-party synchronous software vendor to implement the AutoSync 2 technology to its fullest capabilities. 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.


In the company introduced the Smartmodem Ultra 96which offered both v. As a result of this shift, there was no real need to limit the user to the speed of the long-distance lines, giving the Bell companies flexibility in terms of what to install at the user’s site.

AutoSync: Hayes OPTIMA AutoSync 2 Modems – Software Solutions by CQ

Like most inventions, the AutoSync technology was developed to address a need – Remote synchronous communications users needed an easier, less complex way of setting up a remote PC-to-host connectivity. At the time of its introduction, the modem market was fairly small, and competitors generally ignored the Smartmodem.

However, existing modems were simply too expensive and difficult to use or be practical for most users. Hayes Microcomputer Products was a U.

Since these characters could be sent to the modem using the same two data pins that the port would need anyway, they could be sure that such a system would work on every computer. They then split their line into the Accura and Optima brands, offering the Accura as a low-cost model, although the feature sets were not that different between the two lines. When they moved to the Smartmodemthey simply extended the set further, using the same syntax.

Another confuses the original Smartmodem with the later V-Series modems, reversing the introduction dates and features. There needed to be some way to indicate that the characters flowing out from the computer to the modem were not simply additional data to be sent to the far end, but commands to be acted on. Alternate between synchronous host applications and asynchronous Internet and e-mail communications.

Sirkis acquiesced, and a working prototype was soon complete. Soon there were literally hundreds of similar models on the market, and Rockwell’s competitors also rushed in with similar chipsets of their own.

Today almost all modems use a variant of the Hayes command set.

Hayes Optima 56k External Rs232 Serial Business Modem Fax 5362US Faxmodem

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.


In Hayes effectively abandoned their Express 96 protocol in favor of v. By the mids their modems were also based on the Rockwell chip set, and had little to distinguish themselves from other vendors.

Defunct computer companies of the United States Defunct computer hardware companies Modems Telecommunications equipment vendors Computer companies established in Electronics companies established in Manufacturing companies established in Manufacturing companies disestablished in Companies that filed for Chapter 11 bankruptcy in Companies that filed for Chapter 11 bankruptcy in Software features and compatibility with the host site are limited and vary from manufacturer to manufacturer.

Hayes Technical Support: OPTIMA 56K/V External Business Modem

The market grew rapidly in the mids, and as the Smartmodem was the only truly “universal” modem on the market, Hayes grew to take over much of the market. Requires technical support to configure the adapter card and set the modem for synchronous communications. In this way, the modem could be instructed by the computer to perform various operations, such as hang up the phone or hwyes a number.

All of these survived for some time into the early s. Hayes’ job was to set up modem connections for NDC’s customers. Before the AutoSync technology, remote PC-to-host communications users were required to install and configure numerous hardware components including an internal synchronous adapter card, cable, external synchronous modem, and, in some cases, additional hardware such as a switch box.

Misc by Wayne Cunningham Aug 26, As the modem market expanded, competitors quickly copied the Hayes command set and often the Hayes industrial design as well.