HP A6604 Installation Manual page 14

Table 1-9 Description of the LEDs
LED
RUN (green)
device LEDs
ACT (green)
ALM (red)
management
Ethernet LINK/ACT
interface (yellow/green)
LED
USB 1 LED USB (green)
CF LED CF (green)
Do not remove the CF card when the CF LED is blinking. Otherwise, the file system on the CF
card will be damaged.
Status
Off No power input is available, or the RPE-X1 has failed.
Slow blinking
The RPE-X1 is operating normally.
(1 Hz)
The application software is being loaded (in this case,
Fast blinking never power off the device or hot-swap the RPE-X1;
(8 Hz) otherwise the RPE-X1 may be damaged), or the RPE-X1
is not working.
Off The RPE-X1 is in the standby state.
On The RPE-X1 is in the active state.
Off The system is operating normally and there is no alarm.
A fault has occurred to the system. In this state, you need
On
to check the system log immediately.
Fast blinking A critical fault has occurred to the system. In this state, you
(8 Hz) need to handle the fault immediately.
Solid yellow A 10/100 Mbps link is present.
Solid green A 1000 Mbps link is present.
Data is being received or transmitted at a rate of 10/100
Blinking yellow
Mbps.
Data is being received or transmitted at a rate of 1000
Blinking green
Mbps.
Off No host is connected to the device-mode USB interface.
A host is connected to the device-mode USB interface.
On
The USB cable can be unplug in this state.
Data is being transmitted or received through the device-
Blinking mode USB interface. In this state, do not unplug the USB
cable.
Off No CF card is present or the CF card is not recognizable.
On A CF card is in position and has been detected.
The system is accessing the CF card. In this state, do not
Blinking
remove the CF card.
Meaning