Chapter 2. CPU Features & Specifications
GFK-2222AD April 2018 79
2.2.4 CPU315 and CPU320/CRU320
Figure 27: IC695CPU320 Front View
Serial Ports CPU315, CPU320 & CRU320
Each CPU has two independent, on-board serial ports, accessed by connectors on the front of the
module. COM1 and COM2 provide serial interfaces to external devices. Either port can be used for
firmware upgrades. For serial port pin assignments, electrical isolation, and details on serial
communications, refer to Chapter 5.
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