Cisco Threat Grid M5 Maintenance Manual page 5

Maintenance and Upgrades
Trouble Power supply health monitoring notifies you if the power supply loses power or malfunctions so that redundancy
is lost. Check the power supply cables to make sure they are functioning. If they are and errors are still
occurring, replace the power supply.
Before you begin
Take note of the following warnings:
Warning
Statement 1018 Supply Circuit
To reduce risk of electric shock and fire, take care when connecting units to the supply circuit so that wiring
is not overloaded.
Warning Statement 1019 Main Disconnecting Device
The plug-socket combination must be accessible at all times, because it serves as the main disconnecting
device.
Warning
Statement 1024 Ground Conductor
This equipment must be grounded. To reduce the risk of electric shock, never defeat the ground conductor or
operate the equipment in the absence of a suitably installed ground conductor. Contact the appropriate electrical
inspection authority or an electrician if you are uncertain that suitable grounding is available.
Warning
Statement 1030 Equipment Installation
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1073 No User-Serviceable Parts
There are no serviceable parts inside. To avoid risk of electric shock, do not open.
Warning
Statement 1074 Comply with Local and National Electrical Codes
To reduce risk of electric shock or fire, installation of the equipment must comply with local and national
electrical codes.
Step 1 Remove the power supply:
Remove and Replace a Power Supply
Maintenance and Upgrades
5