3.3.3. EXTENDER TYPE CONNECTION
After connection devices according to figure below ADA-4020 should be setted to operate on RS485 or RS422 network – depend on
which interface are on connected devices.
Fig 8. Example connection of ADA-4020 converter as extender
8
ADA-4020
(5
)
G
N
D
G
N
D
(2
)
R
x
(3
)
T
x
R
S
48
5(
2W
)
P
C
A
D
A
-I
10
4
0
G
N
D
(
5)
T
x
(2
)
R
x
(3
)
R
x+
R
x-
T
x+
/
A
T
x-
/
B
T
x+
/
A
T
x-
/
B
R
x+
R
x-
R
x-
T
x-
G
N
D
R
x+
R
x+
*
A
D
A
-4
0
20
T
x+
(5
)
G
N
D
G
N
D
(2
)
R
x
(3
)
T
x
R
S
23
2
co
n
n
ec
to
r
D
B
-9
F
/D
C
E
R
S
4
85
/4
2
2
T
er
m
in
al
b
lo
c
k
C
u
rr
en
t
L
o
o
p
R
S
23
2
co
n
n
ec
to
r
D
B
-9
M
/D
T
E
P
C
A
D
A
-I
10
4
0
G
N
D
(
5)
T
x
(2
)
R
x
(3
)
R
x+
R
x-
T
x+
/
A
T
x-
/
B
T
x+
/
A
T
x-
/
B
R
x+
R
x-
R
x-
T
x-
G
N
D
R
x+
R
x+
*
A
D
A
-4
0
20
T
x+
D
A
T
A
+
/A
D
A
T
A
-/
B
N
C
N
C
G
N
D
T
x+
/
A
T
x-
/
B
R
x+
R
x-
R
x-
T
x-
G
N
D
R
x+
R
x+
*
A
D
A
-4
0
20
T
x+
R
S
48
5(
2W
)
R
S
48
5(
4W
)
R
S
42
2
T
x+
/
A
T
x-
/
B
R
x+
R
x-
R
x-
T
x-
G
N
D
R
x+
R
x+
*
A
D
A
-4
0
20
T
x+
T
x+
T
x-
R
x+
R
x-
G
N
D
D
e
vi
c
e
w
it
h
R
S
4
85
(4
W
)
In
te
rf
ac
e
R
S
48
5(
4W
)
R
S
42
2
R
S
2
32
c
o
n
n
e
ct
o
r
D
B
-9
M
/D
T
E
R
S
48
5/
4
22
T
e
rm
in
a
l b
lo
ck
R
S
2
32
co
n
n
ec
to
r
D
B
-9
F
/D
C
E
R
S
4
85
/4
2
2
T
er
m
in
al
b
lo
c
k
R
S
4
85
/4
2
2
T
e
rm
in
a
l b
lo
ck
C
u
rr
e
n
t
L
o
o
p
R
S
4
85
/4
2
2
T
e
rm
in
a
l b
lo
ck
R
S
4
85
/4
2
2
T
er
m
in
al
b
lo
c
k
R
S
4
85
/4
2
2
T
er
m
in
al
b
lo
c
k
R
S
4
85
T
e
rm
in
a
l b
lo
ck
D
ev
ic
e
w
it
h
R
S
4
8
5(
2
W
)
In
te
rf
a
ce
C
u
rr
e
n
t
L
o
o
p
T
e
rm
in
a
l b
lo
ck
C
u
rr
e
n
t
L
o
o
p
T
er
m
in
al
b
lo
c
k
C
u
rr
e
n
t
L
o
o
p
T
er
m
in
al
b
lo
c
k
C
u
rr
e
n
t
L
o
o
p
T
e
rm
in
a
l b
lo
ck
