4-4 61204659L1-1A
Section 4, Status MX2800 STS-1 User Manual
Power Supply State
2. POWER SUPPLY STATE
These fields indicate which types of power supplies are installed (AC or DC) in Card A and Card B and
provides their current state, as shown in Table 4-3.
3. SYSTEM STATE
The system state fields display information regarding the two controller cards. The following sections
describe these fields in detail.
Alarm
This field displays any system alarm currently recognized by the unit. The condition is displayed until it
clears, with the exception of the Switched condition (which must be cleared manually) and the Excessive
Switches (cleared when Protection Switch alarm counts are cleared - refer to Protection Switch Statistics
on page 5-13).
To clear the Switched condition, select Acknowledge Alarms (ACO) or push the ACO button on the front
panel (refer to ACO Buttons on page 2-13; Acknowledge Alarms (ACO) on page 4-8). Possible alarm
types are listed in Table 4-4.
Table 4-3. Power Supply State
Condition Description
Normal The power supply is fully operational.
Error The controller card cannot communicate with the power supply.
Power Low The power supply output level is abnormally low.
Power Fail The power supply input power is lost.
Charger Fail The battery backup charger has failed or has lost its AC connection.
Battery Low The battery backup has reached a critical energy point at which it may be unable
to supply the unit with sufficient power to maintain operation.
Temp High The power supply card temperature is abnormally high.
Temp Critical The power supply card temperature is so high that shut-off is imminent.
Table 4-4. System Alarms
Condition Description
Supply Failure A power supply card has failed.
Card Failure A controller card is not passing data.
Excessive Switches The Max Switching Threshold has been exceeded. Refer to Max. (Maximum)
Switch Threshold on page 3-7.
Switched A card switch has occurred.
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