User's Manual

Conf
i
3) E
x
ECP
U
com
m
com
m
In a
d
cont
r
com
m
devi
c
i
dential & Pr
o
x
pansion C
e
U
can inq
u
m
unicates
w
m
unication b
d
dition, the
u
r
ol of devic
e
m
unication s
t
c
e gets fault
y
o
prietary
e
ntral Proce
u
ire and c
o
w
ith upper
ridge betwe
e
u
nit has RS
e
s thorugh
P
t
ate with up
p
y
.
Figure 4.1
ssor Unit(E
o
ntrol state
BIU while
e
n BIU and
R
-232C port
P
C. At the
p
er BIU and
Figure 4.
2
44/13
9
9 – EWDM
O
CPU)
of module
s
communica
t
R
OU.
for serial c
o
front panel
,
lower ROU.
2
0 – ECPU
O
9
O
uter Look
s
to be in
s
t
ing with l
o
o
mmunicatio
,
communic
a
It also has
A
O
uter Look
s
talled into
o
wer ROU.
n, which en
a
tion LED i
A
LM LED in
d
OEU. Thi
s
It also a
c
n
ables inqui
r
ndicator ind
d
icator to sh
o
s
unit
c
ts as
r
y and
icates
o
w if a