RS485 Isolated Repeater

DAT3590-2W

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Applications
RS485 Isolated Repeater, DAT3590-2W.
• UL, CSA, CE.
• Automatic Baud rate up to 115.2 Kbps.
• DC or AC Power.
• RS485 Isolation.
• RS485 Repeater.
General Description

The DAT3590-2W RS485 Isolated Repeater is designed to extend and isolate asynchronous serial communication lines. It guarantees full galvanic isolation between the power supply and serial lines, eliminating ground-loop effects and ensuring reliable operation even in harsh industrial environments.

The device can operate on either RS-422 full-duplex (4-wire) or RS-485 half-duplex (2-wire) interfaces, supporting baud rates up to 115.2 kbps. This makes it suitable for applications requiring signal regeneration, line extension, or improved noise immunity in Modbus RTU or other asynchronous serial networks.

The DAT3590 complies with the 89/336/EEC EMC directive. It is housed in a rugged, self-extinguishing plastic enclosure with a slim 22.5 mm profile, designed for high-density DIN rail mounting (EN-50022 standard).

INPUT OUTPUT POWER SUPPLY
RS485 RS485 Power Supply Voltage 18-30Vdc
Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 35 mA PC Programmable Between Input/Comms/Power Supply 2000Vac.
EMC HOUSING TEMPERATURE
For Industrial environments Material self-extinguishing Operating Temperature 14°F +140°F -10°C +60°C
Immunity EN 61000-6-2 Dimensions W x H x T 4" x 4 3/4" x 3/4" Storage Temperature -40°F +185°F-40°C +85°C
Emission EN 6100-6-4 100 x 120 x 22.5 mm Humidity (non condensing) 0-90%
Weight 7 oz 200 g
DAT3590-2W Datasheet
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Applications
Drawings
Modbus Comms and Isolators

Specifications

Max distance  
Function RS485 to RS485
38400bps 1,2 Km
19200bps 2 Km
9600bps 3 Km
4800bps 4 Km
2400bps 5 Km
1200bps 7 Km
Number of Modules Up to 32
Switching time 150us
Power Supply 10 to 30Vdc
Sample Time 40 ms
Temperature rating: Operative -4°F +145°F -20°C +60°C
  Temperature Storage Temperature -40°F +170°F -40°C +85°C.
Humidity: (non condensing) 0-90%.
Housing: Material self-extinguishing.
Dimensions: W 4 L 4 3/4 H 1" 100 mm X 120 mm x 22mm
Weight: 7 oz 160 g.
EMC. For industrial environments.
  Immunity: EN 61000-6-2.
  Emission: EN 61000-6-4.
Drawings

Power Supply and Connections

Power Supply  
DC Power Positive H Negative G
AC Power J and I
Isolated Repeater DAT3590 wiring Diagram.
Applications

DAT3590 Custom products

What is a DAT 3590 101203?
The DAT 3590 101203 is a special version that have 1 channel in fixed transmission (No 3rd state).
What is a DAT 3590 300904?
The DAT 3590 300904 has a retention time TX 1.5 ms.
What is a DAT 3590 70507?
The DAT 3590 70507 has a retention time TX 3ms and Rload resistance on the RS485 at 560 Ohm.
What is a DAT 3590 180615?
The DAT 3590 180615 has a fixed termination resistor 330 Ohm on RS485 port.

Frequently Asked Questions about DAT3590-2W

What is the DAT3590-2W?
The DAT3590-2W is an isolated RS485 repeater used to extend communication distance and eliminate ground-loop issues in serial networks.
Which interfaces does it support?
It supports RS-422 full-duplex (4-wire) and RS-485 half-duplex (2-wire) communication.
What is the maximum baud rate?
The DAT3590-2W supports asynchronous transmission at speeds up to 115.2 kbps.
Does it provide isolation?
Yes. It provides galvanic isolation between the power supply and serial lines, removing ground-loop effects.
What are typical applications?
It is used for RS485/RS422 line extension, signal regeneration, and noise immunity improvement in Modbus RTU or other serial communication systems.
How is it mounted?
The DAT3590-2W is housed in a 22.5 mm DIN rail–mountable enclosure made of self-extinguishing plastic, suitable for high-density installations.
Is it EMC compliant?
Yes. It complies with the 89/336/EEC directive on electromagnetic compatibility.
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