User`s guide

Chapter 2. RAID Array Controller
EK–SMCPO–UG. A01 2–23
2.9.2.2 Termination Voltage
The controller monitors the incoming termination voltage levels and ensures they
are satisfactory for controller operation. The acceptable voltage levels are shown
in Table 2–9.
Table 2–9 Acceptable Termination Voltage Levels
State Range Action
Normal 4.20 - 5.40 V Normal Operation
Low Warning 4.00 - 4.20 V Alarm
High Warning 5.40 - 5.55 V Alarm
Low Severe Less than 4.00 V Off-line
High Severe Greater than 5.55 V Off-line
2.9.2.3 12 V Supply Voltage
The controller monitors the incoming 12-volt levels and ensures they are satisfac-
tory for operation. The acceptable voltage levels are shown in Table 2–10.
Table 2–10 Acceptable 12 Volt Levels
State Range Action
Normal 10.80 - 13.80 V Normal Operation
Low Warning 10.20 - 10.80 V Alarm
High Warning 13.80 - 14.40 V Alarm
Low Severe Less than 10.20 V Off-line
High Severe Greater than 14.40 V Off-line