Cpu Communication Ports - GE B30 Instruction Manual

CHAPTER 3: INSTALLATION WIRING

3.3.9 CPU communication ports

3.3.9.1 Overview
There is a rear RS485 communication port on the CPU module. The CPU module does not require a surge ground
connection.
Figure 3-31: CPU module communications wiring
3
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL 3-33