Chapter 5. Communications
GFK-2222AD
April 2018
195
5.2.4
Serial Port Electrical Isolation
Some serial communication ports are isolated, while others are not, as indicated in the following table:
Family Model
COM1
COM2
COM3
RX3i
CPU310
Non-Isolated
Non-Isolated
N/A
CPU315
Non-Isolated
Non-Isolated
N/A
CPU320/CRU320
Non-Isolated
Non-Isolated
N/A
CPE302/CPE305
Non-Isolated
N/A
N/A
CPE310
Non-Isolated
Non-Isolated
N/A
CPE330
N/A
N/A
N/A
CPE400
Non-Isolated
N/A
N/A
RX7i
CPE010
Optocoupler Isolated
Optocoupler Isolated
Optocoupler Isolated
CPE020/CRE020
Optocoupler Isolated
Optocoupler Isolated
Optocoupler Isolated
CPE030/CRE030
Optocoupler Isolated
Optocoupler Isolated
Optocoupler Isolated
CPE040/CRE040
Optocoupler Isolated
Optocoupler Isolated
Optocoupler Isolated