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2-2SectionInstallation
16
2-2-4 Precautions in Handling the Board
• Turn OFF the power supply to the CPU Unit before mounting or removing the
Board.
• Turn OFF the power supply to the CPU Unit before before connecting or dis-
connecting Board connectors or wiring.
• Separate the port connector lines from the high-tension or power lines to re-
duce external noise.
• Leave the port cover attached when not using a communications port.
Port cover