FWA-3260 User Manual v02
_20160302.docx
Copyright 2014 Advantech Co. Ltd. All rights reserved. Page 49
Power Up
Host system is turned on / powers up (DC on)
Power Down
Host system is turned off / powers down (DC off)
Power Reset
Host system is reset or rebooted
Watchdog Start
LAN bypass watchdog is started or strobed for the first time
Watchdog Timeout
LAN bypass watchdog timed out
External Trigger
Global Watchdog Trigger input (dedicated GPIO pin)
In addition to the event driven model, it is also possible to set the connectivity for a bypass
segment via the SW API.
2.5.3.1
LAN Bypass Segments
The FWA-3260 supports four onboard traffic ports which are grouped into 2 bypass
segments as shown below:
Figure 21: Onboard LAN ports and bypass segments
2.5.3.2
Bypass Watchdog Support
Each bypass segment is support by an independent watchdog timer. The timer basis is set to
100ms. Watchdog timeout periods can be set between 100ms and 6553.5 seconds (about
109 minutes).
The FWA-3260 also supports a global watchdog trigger which allows multiple bypass
segments to be controlled at the same time. The global watchdog signal is connected
between the two onboard bypass segments and also to the PCIe extension connector (for
future use).
2.5.3.3
LED Behaviour
Advantech Advanced LAN bypass uses a LED to show the state of a bypass segment. Usually
the bypass LED is implemented as a dual colour LED combined with a regular LAN port LED.
The table below shows the status of the bypass LED, only. For a complete description of port
LEDs please refer to appendix A.3.2).