Optima at
Work
Hayes OPTIMA modems have a number of capabilities that allow
them to service advanced business and data communications
applications. Leased line support, access security with encrypted
passwords, remote configuration and the capability to support
FAX servers all make OPTIMA the right choice for business
applications. 
OPTIMA is also one of the few modems available today which
supports Synchronous communications - indeed OPTIMA not only
supports Synchronous but has a unique "Hayes AutoSync" capability
which allows synchronous communications through a standard
serial PC port without the use of special, expensive Synchronous
adapter devices in the PC.
Synchronous communications involves a series of protocols
that were originally developed to allow remote devices to
communicate with Host systems such as Mainframes and Midrange
systems, maintaining a constant timing e.g. synchronization
between the two at all times. IBM was the principal developer
of synchronous techniques such as BiSync and SDLC (synchronous
data link control) and the protocols themselves are named
after IBM terminal families such as 5250 and 3270. Synchronous
protocols include interactive (3270 or 5250) and batch file
transfer (3770 or 3780).
When used in its basic synchronous mode, OPTIMA functions
as a synchronous modem supporting any of these protocols
when attached to a synchronous port. When used in Hayes AutoSync
mode, OPTIMA attaches to a standard serial port and operates
in conjunction with software solutions from our developers
who provide emulation applications for each of the above
protocols. These applications have been developed for both
DOS and Windows PC environments.
The beauty of the Hayes OPTIMA is that users can perform
common Asynchronous tasks such as Email and Internet as well
as Synchronous functions as such as PC to host/mainframe
communications with the same modem, through the same communications
port with no cable or configuration changes.
The applications stories listed below will give you a feel
for how OPTIMA is used in Synchronous applications:
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