Using the concept of the SIMM (Single Inline Multipurpose Module), the
SIO-3 features two RS232 serial channels. By the use of a DC/DC converter and
optocouplers, an isolation barrier of at least 500VDC between digital section
and RS232 section is achieved. This eliminates potential ground loop and RFI
problems caused by compensation ground currents between two digital
equipments. The module can be used on any microprocessor board providing the
local MLX bus-extension. The MLX-bus (MPL local extension) provides an 8-bit
synchronous bus and can be used like any microprocessor peripheral. The
dimensions of the board are very small and the connector is an AMP-standard
As far as possible the technology used is CMOS. The board consumes typically 40mA (no load) from a single 5V supply.
Manuals, Data Sheets, and Press Releases can be found in the MPL Documentation area of this homepage.