APC SYMMETRA 990 - Manual (Page 7)

Overview: Display Symbols and Buttons
Symmetra MW with External Bypass Static Switch Operation Manual - 990-1377D-001 3
Buttons
 ON button: Press this button to switch ON the UPS or the External Bypass Static Switch.
 OFF button: Press this button to switch OFF the UPS or the External Bypass Static Switch.
 EMO (Emergency Module OFF) button: To be used in emergency situations only.
Pressing this button switches OFF all breakers, disabling AC/DC input and output in this section.
Be aware that this action may cut the supply to the load from the affected section.
Breakers
Note: Only operate a breaker when the associated breaker lamp is on.
  
Q1 UPS input breaker Q5 Static bypass input breaker
Q2 UPS output breaker Q6 Static bypass output breaker (optional)
Q3 Manual bypass breaker Q7 Battery breaker 1
Q4 System output breaker (optional) Q8 Battery breaker 2