The new MSXB 078 digital I/O expansion hardware from Microstar Laboratories, Inc. (Bellevue, WA) combines simultaneous operation on all channels with an isolated ground to protect applications from sources of error. The expansion board provides 16 digital inputs and 16 digital outputs on an HD 62 connector with headers for alternate connectors. Eight rackmounted MSXB 078 boards connected to a single DAP board controlled by a PC give it 128 digital outputs and 128 digital inputs. More digital outputs, up to a total of 1008, can be driven by a single DAP board simply by adding more MSXB 078 boards.

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