B.3  Cleaning 
Clean the exterior metallic surfaces of the ESP300 with water damp 
but not wet lint-free cloth. Clean external cable surfaces with alcohol, 
using a clean, lint-free cloth. 
WARNING 
CAUTION 
Do not expose connectors, fans, LEDs, or switches to alcohol or 
water. 
 
 
 
 
 
 
 
 
 
 
 
Power-down all equipment before cleaning. 
 
 
 
 
 
Appendix B – Trouble-Shooting and Maintenance    B-5