Active filters
Simple device
Common features
Serial ports
RS-232
RS-485
Converter type
Simple device
Differences
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Serial ports
Optic fiber types
I/O
RS-422
Duplex zipcord
Isolated input
ATC-105
 
ATC-106
 
 
ATC-106N
 
 
 
ATC-107
 
ATC-107N
 
 
ATC-108N
 
 
I-7520
 
 
I-7520A
 
I-7520AR
 
I-7520R
 
 
I-7520U
 
 
STD1918H
 
 
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