Fig 13. Example connection of ADA-13020 & ADA-1020 converters, to Current Loop bus for 15 SLAVE converters
3.5. POWER SUPPLY CONNECTION
The power supply to the ADA-13020 should be DC (regulated) from the scope 10 V= to 30V= and nominal power more than 3W e.g.
DR-15-24. Power cable from DC power supplies to device must not be longer than 3m. Observe the polarity, connect positive (+) of
DC power supplies to V+ and negative (-) end to V- terminal.
ADA-13020 converter has the protection from opposite connection power supply.
12
ADA-13020
S
L
A
V
E
-2
R
S
2
32
S
L
A
V
E
-1
5
R
S
2
32
ADA-1020-1-2-2-3
SLAVE-PASSIVE-1
S
L
A
V
E
-1
R
S
2
32
R
S
23
2
Rx+
Rx-
Rx+*
Tx+
Tx-
DB-9F RS232
connector
Rx+
Rx-
Rx+*
Tx+
Tx-
DB-9F RS232
connector
Rx+
Rx-
Rx+*
Tx+
Tx-
.
GND (5)
Tx (2)
Rx (3)
DB-9F RS232
connector
RS232
connector
.
GND
Rx
Tx
ADA-1020-1-2-2-3
SLAVE-PASSIVE-2
ADA-1020-1-2-2-3
SLAVE-ACTIVE-15
.
GND (5)
Tx (2)
Rx (3)
.
GND
Rx
Tx
.
GND (5)
Tx (2)
Rx (3)
.
GND
Rx
Tx
R
S
23
2
R
S
23
2
R
x-
T
x-
E
T
H
R
x+
R
x+
*
T
x+
.
A
D
A
-1
3
02
0
-1
-1
-2
-2
-3
M
A
S
T
E
R
-A
C
T
IV
E
LAN, WAN
or PC
E
T
H
E
R
N
E
T
c
o
n
n
e
ct
o
r
Current Loop
connector
C
u
rr
e
n
t
L
o
o
p
c
o
n
n
e
ct
o
r
Current Loop
connector
Current Loop
connector
RS232
connector
RS232
connector
C
u
rr
e
n
t
L
o
o
p
N
et
w
o
rk
