NA342 Series Network Appliance U
ser’s Manual
38
LAN Bypass Configuration
LAN Bypass Register Configuration
Power ON Bypass Control Register (0x8E0)
7
6
5
4
3
2
1
0
BYM1
BYM0
X
X
X
X
X
SEGN1
W
W
--
--
--
--
--
W
Default value: 00000000
Bit 7~6 BYM1~0
These bits are used to set bypass mode.
00
Not used.
01
Force bypass enable
Relay closes immediately to form LAN bypass on selected segment when
power on.
10
Force bypass disable
LAN bypass is disabled immediately on selected segment when power on.
11 Timer enables
When power on, the selected segments are controlled by the setting of
LAN bypass Timer Control register.
Bit 5~1 Not used
Bit 0 SEGN1
Select each segment by setting the corresponding bit to 1. When the bit is set to 0, no action
happens upon the segment.
NOTE:
NA342 series support SEGN1 for Lan 3 Lan4 only.
Data read back from this register is not defined and therefore must be ignored. Reading from
this register makes no effect on LAN bypass function. All data in this register will be cleared
when system is turned off. If you still want to use power on LAN bypass function, turn on the
system and make sure to rewrite the register. Otherwise, if you
don’t rewrite the register, the
status will be kept on last status.
