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Page
20
of
83
FAQs
a.
How
is
access
to
the
sensor
network
locked
at
the
CMS?
Nodes
are
only
allowed
to
join
the
network
if
the
receiver
allows
them
to.
This
is
true
even
if
the
nodes
are
identified
as
SonNet
Nodes
and
have
the
correct
encryption
key.
There
are
two
methods
to
configuring
the
receiver
to
accept
nodes
on
to
the
network.
In
order
to
authorise
a
node
the
CMS
must
be
in
administration
mode
(File
‐
>Switch
Admin
Mode
must
be
ticked).
•
Auto
Commissioning
Mode
The
CMS
allows
the
receiver
to
be
switched
to
auto
commissioning
mode.
In
this
mode
any
nodes
that
can
correctly
identify
themselves
as
SonNet
nodes
will
be
allowed
to
join
the
network.
Any
nodes
that
do
join
will
be
added
to
the
CMS
textual
display.
•
Manual
Mode
In
manual
mode
individual
nodes
can
be
removed
from
or
added
to
the
authorised
node
list
from
the
CMS.
Manual
mode
is
the
default
mode.
A
node
can
then
be
authorised
by
Options
‐
>Authorise
(add)
a
new
node
or
selecting
the
same
option
on
the
right
click
menu
in
the
Textual
or
Graphical
parts
of
the
application
display.
The
user
must
type
the
MAC
address
(found
on
the
PCB
or
product
housing)
of
the
new
node
into
the
dialog
that
appears
and
can
also
give
the
node
a
textual
name
(up
to
10
characters)
b.
Why
do
some
menu
items
disappear
if
the
CMS
application
is
idle
for
some
time?
The
CMS
has
a
timeout
that
operates
when
in
Admin
mode.
If
there
is
no
activity
for
some
time
the
CMS
application
will
exit
admin
mode
and
some
admin
menu
items
will
be
disabled
or
removed.
The
timeout
can
be
set
in
Options
‐
>
Change
Idle
Time.
Admin
mode
can
be
entered
again
in
File
‐
>Switch
Admin
Mode
c.
The
CMS
application
right
click
menu
has
stopped
being
provided.
Why?
This
probably
means
that
the
CMS
has
detected
that
the
receiver
has
been
disconnected
from
the
PC.
This
will
be
indicated
on
the
status
bar
at
the
bottom
left
side
of
the
CMS
application
window
"Receiver
Disconnected".
In
this
state
many
of
the
CMS
facilities
are
disabled
until
the
Receiver
is
connected
again.
d.
How
are
the
network
node
names
stored,
are
they
persistent?
The
node
names
are
stored
in
the
receiver’s
non
‐
volatile
memory.
Therefore
these
will
be
the
same
even
if
a
different
PC
is
attached
to
the
system,
or
the
receiver
is
reset
or
power
cycled.