Led Status Indication - Advantech ICR-4401 Hardware Manual

2. Hardware Functionality

2.11 LED Status Indication

There are status LEDs on the top side of the router to provide router status information. Moreover, ETH0
and ETH1 connectors, located on the front panel, have two additional LEDs providing information about the
port status.
Caption
PWR
USR
IN0
IN1
OUT0
OUT1
ETH0
ETH1
ETH0
ETH1
ICR-4401 Hardware Manual
Color State
Green On
Green Blinking
Green Fast blinking
Green —
Green On
Green On
Green On
Green On
Green On
Green Off
Yellow On
Yellow Brief off blinks
Yellow Off
Table 16: LED Status Indication
Description
The router is booting up.
The router booted up and is ready.
The router firmware is being updated.
The function of this LED is user-defined.
The first digital input is active.
The second digital input is active.
The first digital output is active.
The second digital output is active.
Selected 1 Gbps bit rate.
Selected 100/10 Mbps bit rate.
The network cable is connected.
Data transmission.
The network cable is not connected.

2.11 LED Status Indication

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