Hedin Tex - H-4 - RS232 to RS422/485 Interface Converter

The Hedin Tex H-4 is an asynchronous interface converter designed to facilitate communication between V.24/RS232 and RS422/RS485 interfaces. Key features include:

• Data Transmission: Supports asynchronous, full-duplex, half-duplex, or simplex communication, accommodating various data transmission requirements.

• Transmission Modes:

• Full-duplex with two twisted wire pairs

• Half-duplex or simplex with a single twisted wire pair

• Data Rate: Operates at speeds ranging from 0 to 100,000 bits per second, ensuring compatibility with a wide range of devices.

• Galvanic Isolation: Provides galvanic isolation between interfaces, enhancing protection against electrical interference and ensuring signal integrity.

• LED Indicators: Features front-panel LEDs displaying Power, RD (Receive Data), TD (Transmit Data), and RTS (Request to Send) statuses for easy monitoring.

• Mounting: Designed for easy installation on a 35 mm DIN rail using a mounting foot with screw terminals, simplifying integration into industrial setups.

• Transient Protection: Equipped with suppressor diodes and varistors to safeguard against lightning strikes and overvoltage, protecting both the converter and connected devices.

• Power Supply: Operates on a 24 V DC supply voltage, with a tolerance range of 17-30 V DC.

Technical Specifications:

• Interfaces:

• X1: EIA RS232 and CCITT V.24/V.28

• X2: EIA RS422/RS485 and V.11

• Connections: All connections are made via a 32-pin blade connector (DIN41612) or a 35 mm DIN rail mounting foot with screw terminals.

• Operating Temperature: Suitable for ambient temperatures between 5°C and 50°C.

• Humidity Range: Operates effectively in environments with 0-95% relative humidity.

• Dimensions:

• Without mounting foot: 47 mm (Width) x 129 mm (Height) x 134 mm (Depth)

• Mounting foot: 75 mm (Width) x 100 mm (Height) x 25 mm (Depth)