Grass Valley PDX 218 - Manual (Page 8)

General Safety Summary
x PDX 218 Instruction Manual
Product Damage Precautions
Use Proper Power
Source
Do not operate this product from a power source that applies more than
the voltage specified.
Provide Proper
Ventilation
To prevent product overheating, provide proper ventilation.
Do Not Operate With
Suspected Failures
If you suspect there is damage to this product, have it inspected by
qualified service personnel.