User's Manual Part 2

164 APCD-LM043-8.0 (DRAFT C)
10: Maintaining the Network
Cleaning the Equipment
WARNING!
Make sure you follow ESD precautions when you touch and
clean CCU and EUM components.
When cleaning CCU and EUM components:
• Use dry, static-free cloths to wipe dust from the devices.
• Make sure you do not disconnect any cables or wires when cleaning.
Checking the CCU Shelf Cooling Fans
WARNING!
Exercise caution when you are in close proximity to the CCU
Shelf cooling fans. Disconnect AC power to the fans prior to
handling.
Verify that the cooling fans in the CCU Shelf are rotating freely and at a high speed when
connected to the power supply to ensure proper cooling of the CCUs.