The AT444A
4-Input Analog and Digital I/O Board w/Relays


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:


Please call us at: 513-874-4796

 Contact Information:
 
R.E. Smith,  10330 Chester Road, Cincinnati, Ohio 45215
 513-874-4796 Phone, 513-874-1236 Fax., rs485.com
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