●
Transparent for all protocols, which the data format is compatible with the above specifications of Current Loop interface eg
MODBUS,
●
Power supply 10 - 30 VDC stable min. 3W,
●
~ 3000V= optoizolation in signal channel between ETHERNET and Current Loop interfaces,
●
1000V= or 3000V= galvanic isolation between ETHERNET interface and power supply - depends on version,
●
1000V= or 3000V= galvanic isolation between Current Loop interface and power supply - depends on version,
●
Connection Current Loop interface via screw terminal block,
●
Implemented short circuit protection and over-voltage protection on Current Loop lines,
●
Protection against power supply reverse connection,
●
DIN 43880 standard - mounting in typical electro-installation unit,
●
Rail mounting according to DIN35 / TS35 standard,
●
Dimensions (W x D x H) 53mm x 62mm x 90mm.
2.2. DESCRIPTION
The ADA-13021 converter is used for data transmission between devices equipped with Current Loop interface via LAN/WAN network
without interfering with data format. In the ETHERNET network converter can operate in Virtual Serial Port mode, TCP serial bridge
mode, UDP serial bridge mode, TCP sockets, UDP sockets. The ADA-13021 converter transmits data via Current Loop interface with
the baud rate 38,4kbps by the use of 2-pair of twisted-pair cable. The converter has screw terminal block for connection of Current
Loop interface and power supply and RJ45 connector for Ethernet network connecting. ADA-13021 uses for operating the signals:
RX+,RX-,TX+,TX- of Current Loop interface.
Over-voltage protection was made on base safety diodes and fuses on each Current Loop lines.
To Current Loop interface can be connected one device in point-to-point topology, operates in half duplex or full duplex mode.
This converter has internal, low energy surge protection for each Current Loop lines however it is recommended to use the external
lightning arresters (typical protection of telephone line) for the lightning protection of lines.
Fig. 1. ADA-13021 view
Fig. 2. ETHERNET & power connectors
2.3. ETHERNET NETWORK COMMUNICATION
2.3.1. TCP/UDP SOCKED MODE COMMUNICATIONS
Communication in the mode TCP/UDP sockets allows an application SCADA, MMI e.t.c., to transfer data to the serial port of the
converter via Ethernet network by the use of client and server TCP/UDP services.
2.3.2. COMMUNICATIONS IN THE VIRTUAL SERIAL PORT MODE (RealPort)
Communication in the virtual serial port mode allows an application SCADA, MMI e.t.c., to transfer data to the serial port of the
converter via Ethernet network, by the use virtual COM port , created in an operating system.
2.3.3. COMMUNICATIONS IN THE SERIAL BRIDGE MODE
Communication in the serial bridge mode allows transferring data via Ethernet network between serial port of the converter's ports in
one-to-one topology or one-to-many by the use of client and server TCP/UDP services.
2.3.4. OTHER COMMUNICATION TYPES
The ADA-13021 converter can be configured in other communication types, like:
5
ADA-13021
62mm
53mm
10
m
m
10
m
m
Current Loop interface
9
0m
m
Network activity
transmitting / receiving
Connection activity
8
1
-
+
ETHERNET interface
RJ45 connector
Power supply
10-24-30 VDC
ADA-13021
CURRENT LOOP to ETHERNET
CONVERTER
PWR
TX
RX
CL
(CURRENT LOOP)
T
x
-
I1
-
I2
-
R
x
-
I2
+
R
x
+
T
x
+
I1
+
ACT
LINK
(ETH)
RST
V
+
V
-
10 – 30
VDC
Summary of Contents for ADA-13021
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