Meanings of the STAT indicator on OSN equipment

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If the STAT indicator of a board is steady green, the board is working properly. If the STAT indicator is off, the board is not powered on. If the indicator is steady red, the board is faulty or a board hardware mismatch occurs. In addition, the STAT indicator and the SRV indicator have different service responsibilities.
According to descriptions provided by R&D engineers, service alarms are indicated by the SRV indicator, and other alarms are indicated by the STAT indicator, such as power supply alarms, temperature alarms, communication exception alarms, and alarms indicating absence of optical modules. This is a unified feature of OSN equipment.
For example, if an optical port is vacant on an SLQ16 board, the STAT indicator on the board is steady red. If an EOS board has a high temperature alarm, the STAT indicator on the board is also steady red.
Suggestion and conclusion:
If the STAT indicator on a board is red, you cannot determine that the board is faulty. Instead, you must check the alarm and fault on the board in detail.

Other related questions:
Meaning of the alarm indicator on a board
The alarm indicator on the front panel of the board indicates the running status and alarm status of the board.

What do WLAN indicators of the AR router mean
The WLAN indicator status and their meanings are as follows: -If the WLAN indicator is steady on, the radio interface is physically Up but is not transmitting traffic. -If the WLAN indicator is blinking, the radio interface is physically Up and is transmitting traffic. A higher traffic rate indicates a higher blinking frequency. -If the WLAN indicator is off, the radio interface is physically Down.

Meaning of colors of interface indicators on the S1700
For details about the meaning of each color of the indicators on the S1700, click S1700 Products Description and choose Hardware Structure > Indicator.

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