Data Switching Systems

These are a line of data communications switches (Data PBXs) which allow muliple virtual circuits to be established by computers and other devices, with many features and capabilities. The first switch I developed as a private project, and the design was subsequently marketed by a Kanata (Ottawa) based company in which I became a director responsible for the data switches, statistical multiplexors and other related products. Several of the switches won "Editors Choice" awards in PC magazine reviews.


The 1008 is the "pizza box" visible to the lower left. This is essentially my original prototype repackaged into a production board and case. It is a 8 port serial switch with an interactive command processor. Any port can connect to any port, and you can also connect to an "internal process" to configure and monitor the switch.


This are the small units in the middle on the right. The 1080 was a refinement to the 1008 which used better UART devices, fit in a smaller cabinet, and added LEDs to display the status of the ports. With just a firmware change, this hardware becomes a 1070 which is a 7-1 statistical multiplexor.


The flat black unit in the lower right is a 1082, the next generation of the data switch, which features many improvements in both hardware and software. This switch features 8 serial ports, and two bidirectional parallel ports. There is also an internal 2M print buffer/spooler. The RS-232 ports are auto sensing and will self configure to either DTE or DCE configuration.


The "big guy" at the back is a 1032 unit. This began as a 4-slot 32 port device, and was later expanded to the 8-slot 64 port device shown here. This unit features several types of interface cards, both dumb and "smart" serial cards, parallel cards, multiplexor cards, and a "conferencing card" which provided an arbitrated one-to-many broadcast capability.

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Copyright 2012-2019 Dave Dunfield.