User manual

23
3.1.2 LED indicators
Figure 3.2: The LEDs on the front panel
Six LEDs (shown as Figure 3.2) are placed on the front panel of the ACP-
4320 chassis to indicate the system health and activity. Please refer to
Table 3.1 for the LED definition summary.
If the system is connected with a single PS/2 power supply (e.g., PS-
300ATX-ZB), the Power LED is always Green when power on.
When the PWR LED is RED, it indicates a redundant power supply (e.g.,
RPS-300ATX-Z) failure. To stop the alarm buzzer, press the Alarm
Reset button. Then, check out the redundant power supply right away and
replace the failed power supply module with a good one.
If the TEMP LED is RED and blinking, it means that the system detects
over high temperature in the chassis. An audible alarm is activated. To
stop the alarm buzzer, press the Alarm Reset button. Inspect the fan fil-
ter and the rear section of the chassis immediately. Make sure airflow
inside the chassis is smooth and not blocked by dust or other particles.
When the HDD LED is Green and blinking, it indicates some data is
written into or read from the HDD. When it becomes no light, it indicates
Table 3.1: LED definition summary
LED Description Green Red
Power
System Power Normal Abnormal
TEMP
In-Chassis
Temperature
Normal Abnormal
HDD
Hard Disk Drive
Activity
Data Access No light
FAN
Cooling Fan Status Normal Abnormal
LAN1
LAN2
LAN Connection Link: Blinking
only when Data
Transition
No light
LAN1
LAN2
FA N
HDDTEMPPo w e r