
60-6 Medical, Biomedical, and Health
can talk only to an FFD. An RFD is intended for applications that are extremely simple, such as a light
sw
itch
or a pa
ssive
in
frared
se
nsor;
th
ey
do no
t
ha
ve
th
e
ne
ed
to se
nd
la
rge
am
ounts
of da
ta
an
d
ma
y
on
ly
as
sociate
wi
th
a sin
gle
FF
D
at a ti
me
. Co
nsequently,
th
e
RF
D
ca
n
be im
plemented
usi
ng
mi
nimal
re
sources
a
nd
m
emory
c
apacity
.
60
.2.4.3
T
op
ologies
It
is im
portant
to un
derstand
th
at
th
e
ne
twork
la
yer
is no
t
de
ned
fo
r
th
is
st
andard
. i
s
me
ans
th
ere
is
no p
ossibility
to r
oute
t
he
d
ata
b
etween
t
he
d
ierent
n
odes
t
hat
c
ompose
t
he
n
etwork
.
e
re
ar
e
tw
o
de
ned
top
ologies
. Bo
th
re
quire
a PA
N
co
ordinator
th
at
wo ...