CEL-MAR ADA-4044H, Руководство пользователя

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Fig. 6. Star type connection of devices with 2-wires RS485 interface to main 4-wires RS485 bus. Device separation from main
4-wires network, extending the main bus by a further segments of 1200m, signal amplification, possibility of connection
additional 128 devices.
9
ADA-4044H
R
S
48
5(
4W
)
co
n
n
ec
to
r
G
N
D
R
t
R
t
R
x+
R
x-
G
N
D
T
x+
/
A
T
x-
/
B
IN
c
o
n
n
ec
to
r
R
S
48
5(
4W
)
O
U
T
co
n
n
ec
to
r
R
S
48
5
(4
W
)
R
2+
/A
4
R
2-
/B
4
T
2+
/A
3
T
2-
/B
3
R
t
R
t
V
ss
+
V
ss
-
V
ss
-
V
ss
+
P
ow
er
s
up
pl
y
R
1+
/A
2
R
1-
/B
2
T
1+
/A
1
T
1-
/B
1
R
t
R
t
-
-
A
B
A
B
GND
Rt
A
D
A
-4
04
4H
Ma in R S4 85 (4 W) bu s
S
LA
V
E
-6
5
S
LA
V
E
-6
6
S
LA
V
E
-1
28
...
S
LA
V
E
SLAVE
R
S
48
5(
4W
)
co
n
n
ec
to
r
T
x+
T
x-
G
N
D
R
x+
R
x-
R
t
R
t
M
A
S
T
E
R
MASTER
S
eg
m
en
ts
o
f
4
xR
S
4
85
(
2W
)
b
u
s
-
-
A
B
GN D
A
B
GN D
Rt
S
LA
V
E
-2
...
S
LA
V
E
-3
2
-
-
A
B
GN D
S
LA
V
E
-1
-
-
-
-
A
B
GND
-
-
GND
-
-
A
B
GN D
A
B
GN D
Rt
S
LA
V
E
-2
...
S
LA
V
E
-3
2
-
-
RS 485 (2W)
co nn ecto r
A
B
GN D
S
LA
V
E
-1
-
-
-
-
A
B
RS485(2W)
connector
A
B
GND
Rt
S
LA
V
E
-3
3
S
LA
V
E
-3
4
S
LA
V
E
-6
4
...
-
-
A
B
GND
-
-
GND
RS 485 (2W)
co nn ecto r
RS 485 (2W )
co nn ect or
RS 485 (2W )
co nn ect or
RS 485 (2W)
co nn ecto r
RS 485 (2W )
co nn ect or
RS485(2W)
connector
RS485(2W)
connector
RS485(2W)
connector
RS485(2W)
connector
RS485(2W)
connector
T
x+
T
x-
R
x+
R
x-