5
X
RS-232,485 + 2
X
E
THERNET
/2 M
BIT
/
S
G.703 (G.704) M
ULTIPLEXER
O
PERATING
M
ANUAL
IOA81-1E
11
August 2004
3.2 Block
Diagram
Re
la
ys
sh
un
ting
th
e
de
vi
ce at
po
w
er fa
ilure
20
48kbit/s
G.70
3
C
irc
u
it for dr
o
pping
/ins
er
ting
time sl
ot
s
int
o
/fr
om si
gnal
frame
20
48
kbit
/s
Nad
ajnik
/
odb
iornik
RS-232
T
ra
n
smitter/
Re
ce
iv
e
r
R
S
-232
RS-232
RS-
232
RS-
232
RS-
232
N
adaj
nik/
odbio
rnik
RS-
232
N
ada
jnik/
odbio
rnik
RS
-2
32
Na
dajnik/
od
biorni
k
RS
-232
Na
da
jn
ik
/
odbior
nik
RS
-2
32
S
ig
nal
tra
nsm
itte
r
a
n
d r
ec
e
iver
2048
kb
it/
s
G.70
3
L
E
D
s
igna
lling
di
od
e
Ala
rm
rel
ay
Sig
nal
tra
n
smitt
er
an
d r
e
ce
iv
er
2048kbit/s
G.7
0
3
M
icro-controller
C
onfigu
rat
io
n
sw
itc
hes
L
o
ca
l(trib
ut
a
ry
) c
h
an
n
el
D
ir
ec
tio
n
of
c
h
an
n
el
C
h
an
ne
l op
e
rat
io
n
mode
C
O
NFI
G
U
R
AT
IO
N
Rela
ys
sh
un
tin
g th
e
d
e
vice
at
p
o
wer fa
ilure
Li
n
e po
rt
B
G.70
3 20
48kbit
/s
Li
ne p
o
rt
A
G
.703 2048
kb
it/s
Signa
l fra
m
ing
sy
nchronisation
ci
rc
u
it
20
4
8
kb
it/s
G.7
0
3
Al
ar
m
con
tact
Dwu
ki
erunkow
e p
o
rty
kan
a
ł
owe R
S
232(V.28
)
C1-C10
Et
he
rne
t
PH
Y
&
Br
id
g
e
Et
he
rn
et
PH
Y
&
Br
id
g
e
T
ransm
itte
r/
Re
ce
iv
e
r
T
rans
mi
tter/
Rec
e
ive
r
Tr
ansm
itter
/
Rece
iv
er
Tra
n
sm
itter/
Re
ce
iv
e
r
Si
gnal
f
rami
ng
sync
hron
is
at
io
n
circuit
Fig. 13.
Block diagram
Summary of Contents for TM-81.1
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