Rockwell Automation 198x Modular DeviceNet Starter Auxiliary I/O - Manual (Page 15)

Installation 2-2
Publication 198-UM001B-EN-P September 2001
Electrostatic Discharge
Remove Power
IMPORTANT
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch bus connector pins. Follow these
guidelines when you handle the module.
• Touch a grounded object to discharge static potential.
• Do not touch the bus connector or connector pins.
• Do not touch circuit components inside the module.
IMPORTANT
Remove power before removing or inserting a module in the I/O
line-up. When you remove or insert a module with power applied, an
electrical arc may occur. An electrical arc can cause personal injury or
property damage by:
• Sending an erroneous signal to your system’s field devices
• Causing damage to the product
Electrical arcing causes excessive wear on module contacts Worn
contacts may create electrical resistance.