The SBH uses status LEDs to indicate functional states according to the LED map shown in the following figure. Table 1 provides SBH LED functional information.
| LED name | Color | Normal LED operation | LED operation for all conditions |
|---|---|---|---|
|
POWER |
Blue or purple |
On steady |
Off: The device has no power. On purple: Primary voltage supplies power. On blue: Operating system (OS) is initialized and primary voltage supplies power. |
|
FAULT |
Red |
Off |
Off: No faults. Device is operating normally. On steady: Missing hardware or software, operating system is not yet initialized, or reset is in progress. Slow flicker then fast flicker: Reset button is being pressed. Medium flicker: 2 blinks per second= startup sequence Fast flicker: 5 blinks per second = other fault |
|
ETHERNET |
Blue |
Flicker with activity |
Off: Receiving data On steady: Transmitting data Flicker: Data transmission |
|
100/1G LINK |
Blue |
On steady |
Off: No network connection On steady: Network is connected |
|
RUN |
Blue |
On steady |
Off: No power or waiting for processes to start On steady: OS and all monitored processes have started and the device is ready to use. |
|
UPGRADE |
Blue |
On steady |
Off: No upgrade is in progress On steady: Upgrade is in progress |
|
USB A |
Blue |
On when a device is connected |
Off: No device is connected On steady: A device is connected |
|
USB B |
Blue |
On when a device is connected |
Off: No device is connected On steady: A device is connected |
|
SYSTEM BUS |
Blue |
Flicker with activity |
Off: Not receiving data On steady: Transmitting data Flicker: Data transmission |
|
Wi-Fi AP |
Yellow |
Flicker with activity |
Off: No Wi-Fi adapter is connected On steady: A device is connected to the Wi-Fi network of the SBH Flicker: Wi-Fi adapter is connected but no devices are connected |
|
EOL |
Yellow |
On if the device is the end of the line Off if it is in the middle of the bus |
Off: EOL not switched on On steady: EOL is switched on |
|
Wi-Fi CLIENT |
Yellow |
n/a |
Not currently used |