Active filters
Simple device
Common features
Serial ports
RS-232
RS-422
Converter type
Simple device
Differences
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Serial ports
I/O
RS-485
Isolated input
ATC-101
 
 
ATC-105
ATC-107
ATC-107N
 
ATC-108N
 
I-7520A
I-7520AR
STD1918H
 
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