●
Rail mounting according to DIN35 / TS35 standard,
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Dimensions (W x D x H) 53mm x 62mm x 90mm.
2.2. DESCRIPTION
The ADA-4044H HUB is used for creation star-branches from the main bus and also separation and extending of RS485/RS422 bus
for next segment 1200m without interfering with the format of transmitted data. The HUB has one input RS485 port (RS485-IN) for
connection of main bus and 4 separated output ports for connection of 2-wire bus or 2 ports for connection of 4-wire of RS485/422
bus. To each output port can be connected a RS485 bus branch, having up to 32 devices. The setting of a port type is made, by the
use of a RS-485 PORTS microswitch, located on the front panel. HUB ADA-4044H can be used for communication in star-topology
with devices in different location and distance, where RS485 chain-topology is difficult or impossible.
To RS-485-OUT ports can be connected up to 64 devices in case of 4-wire RS485 bus, 128 devices in case of 2-wire RS485 bus and
2 addressable devices RS422.
ADA-4044H baud rate is up to 230,4 kbps via 4 or 2 pairs or twisted pair connected to screw terminal block. To 2-wire RS485 bus can
be connected devices operate in half duplex mode and to 4-wire operate in half duplex & full duplex mode. It can be PLC, measuring
devices, electronic scale and cash registers with RS485 or RS422 interfaces.
A surge protection on each RS485/RS422 line was made on the basis of surge diodes and fuses.
Fig 1. ADA-4044H view and location of SW1 switch
4
ADA-4044H
62mm
Power Supply
10 - 30 VDC
9
0
m
m
53mm
1
0
m
m
1
0
m
m
(SW1)
G
N
D
T
X
+
/A
T
X
-
/B
R
X
+
R
X
-
(RS485/RS422)
RS-485 4-wires
or RS-422
RS-485
2-wires
OUT
IN
PWR
TX
RX
ADA-4044H
1x RS-485 IN to 4x RS-485 OUT
HUB RS-485
RS-485 OUT
2W
4W
RS-485
PORTS
T
1
+/
A
1
T
1
-
/ B
1
R
1
+
/
A
2
R
1
-
/ B
2
T
2
+
/
A
3
T
2
-
/ B
3
R
2
+
/
A
4
R
2
-
/ B
4
V
-
V
+
10 – 30
VDC
4 ports RS485 (2W)
or
2 ports RS485(4W) / 2 ports RS422
Содержание ADA-4044H
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