D-1

Appendix D

About the COM Port Accelerator

*The Microkey Switchboard7 Comm Port Accelerator, when installed on a PC with a 16550 UART-based serial port, will provide a reliable and consistent throughput of 115 Kbps to your Netopia ISDN Modem. For Windows 3.1 and 3.11 users wishing to achieve even higher serial port speeds, Switchboard7 will reliably provide 230 Kbps throughput when a 16650 UART-based serial COM port is present.

Microkey Communications Systems, Inc., a Vancouver, BC based software vendor specializes in the area of data communications. Microkey has developed a family of applications that leverage the untapped potential of ISDN Customer Premise Equipment.

Microkey recognized the importance of providing enhanced serial port performance for the majority of users who wish to use serially attached, high-speed communication devices. The Windows device drivers, and device drivers from other third parties, are not capable of sustaining a high enough throughput to consistently drive these external devices at their maximum performance levels.

The Switchboard is comprised of three components:

s7comm.drv

replaces comm.drv

s7vdc.386

replaces *vdc(vcd.386)

s7combuf.386

replaces *commbuf(commbuf.386)

*This information is provided by Microkey Communications Systems, Inc. Phone: (212) 779-1898

WWW Site: www.microkey.com

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Farallon Communications 612, 412 manual Appendix D About the COM Port Accelerator