Lantronix
SISPM1040-3xxx-L Install Guide
33762 Rev. G
Page
23
of
48
LED Descriptions
The LEDs on the front panel provide switch status checking and monitoring. There are three types of LEDs:
System
LED: Indicates if the switch is powered up correctly or not, or, indicates if there is a system alarm triggered
for troubleshooting.
Power
LEDs (P1/P1: DC LED, P3: AC LED): Indicate if the switch is powered up correctly or not.
Port
Status
LEDs: Indicate the current status of each port.
System LEDs
:
LED
Color
Function
SYS
(System)
Green/Red
LED off: All Power Off
Green Light: Switch FW Bootup is Ready
Green Blinking: System Booting
Red Light: Minor Alarms
Red Blinking: Major Alarms: an abnormal state, such as exceeding operating
temperature range, has been detected in the switch.
P1
(DC Power 1)
Green
LED off: Power 1 Off; The switch is not receiving power from DC power.
Green LED on: Power 1 on; the switch is powered ON correctly.
P2
(Dc Power 2)
Green
LED off: Power 2 Off; The switch is not receiving power from DC power.
LED on: Power 2 on
P3
(AC Power 1)
Green
LED off: Power 3 Off; Power 3 on; the switch is not receiving power from AC
power.
LED on: The switch is powered ON correctly.
At SISPM1040-3166-L FW v8.40.985
:
AC-DC Power Input model LED Alarm light initial behavior update:
A
- after switch power on, if initially detected only AC or DC input, the alarm LED does not turn on.
B
- after switch power on, if initially detected AC and DC input and System Ready, then the AC or DC drops power.
Event A is with only AC or DC connected; the system LED remains green when system ready.
Event B is with AC and DC both connected, and then power off AC or DC; the System LED changes from green to
red.