OSN3500 Single Board Hardware Status Light (STAT) Description

Status Description	Indicator Light Description
Bright (green)	The single board is working normally.
Bright (red)	Single board hardware failure or single board hardware mismatch.
Out	The single board is not powered up or the single board is not started.

Description:
OSN3500 Service Activation Status/Veneer Board Master and Standby Status Indicator (ACT) Description

Status Description	Description of Service Activation Status Indicator	Description of the Single Board Master Standby Status Indicator
Bright (green)	The service is active and the single board is working.	The single board is in the master state.
Out	The service is in the inactive state.	The veneer is in the standby state.

OSN3500 Single Board Software Status Lamp (PROG) Description

Status Description	Indicator Light Description
Bright (green)	The single-board software or FPGA memory in FLASH is loaded normally, or the single-board software is initialized normally.
100 milliseconds on 100 milliseconds off (green)	Loading single-board software into FLASH or loading FPGA software into FPGA.
300 milliseconds on 300 milliseconds off (green)	The single-board software is being initialized and is in the BIOS boot stage. Or 3 resets have occurred within 5 minutes and it has entered the BIOS state.
Bright (red)	Loss of single board software or FPGA in FLASH. Loading single board software was unsuccessful. Single-board software initialization was unsuccessful.
Out	No power input. Or high power consumption single board enters low power mode.

OSN3500 Service Warning Indicator (SRV) Description

Board Type	Status Description	Indicator Description
Service Board	Bright (green)	The service is working normally and no service alarms are generated.
	Bright (red)	The operation has urgent or important alarms.
	Bright (yellow)	The operation has minor and remote alarms.
	Out (yellow)	No service is configured and there are no alarms, or there is no power input.
Cross Clock Board	On (green)	Services are working normally and no service alarms are generated.
	Bright (red)	There are serious alarms.
	Bright (yellow)	There is a secondary alarm.
	Out	No service is configured and there are no alarms, or there is no power input.
Main Control Board	On (green)	Services are working normally and no service alarms are generated.
	Bright (red)	The subrack has emergency or important alarms.
	Bright (yellow)	The sub-shelf has secondary and remote alarms.
	Out	No services are configured and there are no alarms, or there is no power input.

OSN3500 Synchronized Clock Status Lamp (SYNC) Description

Status Description	Indicator Lamp Description
Bright (green)	The clock is operating in free oscillation mode and the system clock priority table is not set (the system clock priority table defaults to internal sources only). The clock is operating in tracking mode and is tracking a clock source other than the internal source in the priority table.
Bright (red)	The system clock priority table has been set, but all clock sources in the table except the internal source have been lost and the clock is working in hold mode or by oscillation mode.

Alarm Cutout Indicator (ALMC)

Status Description	Indicator Description
Bright (yellow)	Currently in alarm long-term cut status
Out	Alarms are immediately indicated by sound

Power monitoring indicator description

Indicator name	Status Description	Indicator Description
A - 48V Power Supply Indicator (PWRA)	Bright (green)	A-way-48V power supply normal
	Bright (red)	Circuit A-48V power supply fault (lost or failed)
Circuit B - 48V Power Indicator (PWRB)	Bright (Green)	Circuit B-48V power supply normal
	Bright (Red)	Circuit B-48V power supply fault (lost or failed)
System +3.3V Backup Power Indicator (PWRC)	On (green)	System +3.3V backup power normal
	Bright (Red)	System +3.3V backup power supply lost

Description of Ethernet Indicators for Non-RPR Single Boards

Indicator Name	Status Description	Indicator Description
Connection Status Indicator-LINK (green)	Lights up	Fiber cable is successfully connected to the device
	Out	The fiber cable is not connected to the device
Data transceiver indicator-ACT (orange)	Blinking	Data is being sent and received
	Out	No data is being sent or received

Ethernet Indicator Description for RPR Single Boards

Indicator Name	Status Description	Indicator Description
Connection status indicator-LINK (green)	Lights up	Fiber cable is successfully connected to the device
	Out	The fiber cable is not connected to the device
Data transceiver indicator-ACT (orange)	Long Bright	Data is being sent/received
	Out	No data sent or received

Description of fan box operation status lamp (STATE)

Status Description	Indicator light description
Bright (green)	Fan operation is normal
Bright (red)	Fan, fan power board or fan control board abnormal
Bright (yellow)	Low temperature shutdown fan

COA Panel Indicator Description

Indicator light	Status Description	Indicator Light Description
Green RUN light	Blinks once every 2 seconds (green)	Normal operation (start)
	Blinks 1 time every 4 seconds (green)	Database protection mode; communication between the single board and the SCC board is interrupted.
	Blinks 5 times every 1 second (green)	Program startup/loading
Alarm Indicator Light - ALM	Lights up (red)	Memory self-test error
	Blinks 3 times every 1 second (red)	Emergency alarm occurs
	Blinks 2 times every 1 second (red)	Critical alarm occurs
	Blinking 1 time every 1 second (red)	A secondary alarm occurs

OSN3500 Power Indicator (POWER) Description

Status Description	Indicator Description
Bright (green)	Power input is normal.
Out	No power input or power failure.

UPM Power Box Indicator Description