General Description:
The AT444A is an Analog and Digital I/O Board with 4 Opto-Isolated Inputs, 4
Form-A Relays, 4 buffered 10-bit Analog Inputs, removable terminals, on-board
manual switch override of relays and RS485 Serial Port.
Download: | ||
AT444ACPU.pdf | Schematic - CPU | |
AT444AAIN.pdf | Schematic - Analog | |
AT444ADIO.pdf | Schematic - Digital I/O | |
AT444ASS.pdf | Schematic-Jumpers/Physical |
Click on this image of the AT444A for a larger photograph: