NA-806D Hardware Installation Guide
Award BIOS Utility
15
2.2.9 Enabling LAN by-pass feature
What’s the LAN by-pass means for NA-806D series? That doesn’t have any
down time in network connections for other specify two network segments
(LAN1 and LAN2) while it has any fetal errors for this device.
We are define three levels for the LAN by-pass features, They are,
1. Power
lost
While the AC power lost for this device, the LAN1 and LAN2 still can
communicate with each other through hardware relay which like as a
short cut between the two segments. If the power inlet can be normally
done, the relay will turn to other right position.
2. GPIO
control
That like as a switch of your application software. You can enable the
hardware relay feature through the GPIO control from your application
programs. Then the software solution provider can have more flexibility
make it closely with their program.
3. WDT
(Watch
Dog
Timer)
We have supported the WDT (Watch Dog Timer) feature in our hardware.
While the time out in the default value of timer, it can do the system reset
or do a short cut for two specify segments by hardware relay.
We have supported the sample code for above mention features in the
CD title for customer reference.
For
instance,
8A806D Test Tool
Directory 24 For Linux Kernel 2.4.X
Directory 26 For Linux Kernel 2.6.X
GPIO25 Test For LAN Bypass
Usage: ./gpio25l X
X=0,1
0=Low;1=High
WhatchDog Test
Usage : ./83627hf Y XXX
Y=0(Second),1(Minute) X=1-255,0 for Disable.