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DN0610789
© Nokia Corporation
5 (14)
are fixed. There are three selectable Ethernet interface settings in E66210.33:
10BASE half and full duplex and 100BASE full duplex.
The data path and main components of ET-adapter are described in the block
diagram below.
WAN
Power
3,3V / 1,8V
HDLC
ISEPROM
2048x8
SDRMA
4x1Mx32
10/100
MII
ET-Adapter 100 BASE-T
LAN
Euro
PHY
LXT971
RJ-45
Bridge
DS33ZII
Link integrity & activity
LEDs
Figure 2. Block diagram
ET-adapter is compatible to virtual LANs and 802.1Q VLAN tags are
forwarded transparently over the WAN. Using virtual LANs several subnets can
be combinated to the one Ethernet link, but only if also Ethernet switches
support VLANs.
100BASE-T
Ethernet
switch
VLAN2
100BASE-T
Ethernet
switch
VLAN1
VLAN2
VLAN1
Figure 3. VLAN