Modbus
Cellular
Gateway
Index
skipping
is
used
to
reserve
slots
for
new
function
insertion,
when
required.
53
Operation
Mode
There
are
three
option
items
“Always
‐
on”,
“Failover”,
and
“Disable”
for
the
operation
mode
setting.
It
decides
whether
the
corresponding
WAN
interface
functions
as
the
main
access,
as
a
failover
access
connection
or
disable
the
interface.
Line
Speed
Specify
the
correct
line
speed
(bandwidth)
of
uploading
and
downloading
for
each
WAN
interface
allow
the
device
to
operate
its
QoS&BWM
and
WAN
Load
Balance
functions
normally.
It
is
necessary
to
configure
the
parameters
if
you
want
to
use
QoS&BWM
and
WAN
Load
Balance
functions
on
the
gateway
device.
VLAN
Tagging
Sometimes,
your
ISP
required
a
VLAN
tag
to
be
inserted
into
the
WAN
packets
from
Gateway
for
specific
services.
You
must
specify
it
in
the
WAN
physical
interface.
Please
note
that
only
Ethernet
and
ADSL
physical
interfaces
support
the
feature.
Interface
Configuration
The
configuration
of
a
WAN
interface
includes
the
settings
of
interface
type,
operation
mode,
line
speed
of
upload
and
download,
and
VLAN
tagging.
The
WAN
interface
name
at
the
end
of
window
caption
indicates
which
interface
that
you
are
configuring.
The
content
in
above
diagram
is
an
example
for
Ethernet
WAN
interface.
Physical
Interface
AMIT
gateway
supports
Ethernet,
3G/4G,
USB
3G/4G
and
ADSL
physical
interfaces.
The
kinds
of
physical
interface
in
the
device
depend
on
the
specification
of
gateway
product
purchased.
Following
are
some
physical
interface
configuration
examples
and
their
illustration
diagram.
Please
be
noted
that
USB
3G/4G
can
be
used
only
as
a
failover
interface.
The
primary
connection
is
WAN
‐
1
and
its
operation
mode
must
be
"Always
on".
So,
the
physical
interface
of
WAN
‐
1
will
not
be
"USB
3G/4G".
