ECLER ETH232AD

Product overview

The ECLER ETH232AD is a TCP/IP to serial converter that allows bidirectional transparent transmission between RS-232/422/485 and Ethernet, configured from its own setting web page.

The ETH232AD brings serial-controlled equipment onto an IP network. A 10/100 Mbps Ethernet port on RJ45 sits on one end; a DB-9 male RS-232 port and a 6-pin Euroblock RS-422/485 port sit on the other. Serial and network parameters are set in any web browser, and together with ECLER's network management software the ETH232AD becomes a versatile serial interface controlled from customised user control panels (UCP).

Key features

• 3-in-1 serial interface: RS-232, RS-422 and RS-485 with a 10/100 Mbps Ethernet port
• 4-wire and 2-wire RS-422 with built-in terminator
• 9-24 VDC power input; 9 VDC 1 A international power supply included
• Euroblock connection for RS-422/485 and DB-9 connection for RS-232
• Configuration via web browser, with configuration store and copy for easy deployment
• TCP Server/Client and UDP Server/Client operation modes
• LED indicators for link, data transmit, data receive and power
• CE, FCC and RoHS certification

From a network command to a serial command

A button on a customised user control panel sends a TCP text command to the ETH232AD, which translates it into a serial command for the connected device. The user manual shows the example of muting an ECLER CA series amplifier with the commands SET MUTE ON and SET MUTE OFF, with the serial port set to 9600 bps, 8 data bits, no parity, 1 stop bit and RS-232, and the network set to TCP server on port 5000. Any other RS-232 device can be controlled in the same way.

Simple web configuration

The unit leaves the factory with the IP address 192.168.0.232 (192.168.1.100 for units of batch G1005). Serial settings cover device name, baud rate (RS-232 1200-115200 bps, RS-422/485 1200-921600 bps), parity, data bits, stop bits, flow control and serial type. Network settings cover DHCP, IP address, mask, gateway, DNS, TCP or UDP, keep alive, transmit timer, server or client mode and listening port. Firmware is upgraded from a TFTP server, and access can be limited to up to 4 IP addresses.

Compact and easy to install

The metal enclosure measures 100 x 67 x 26 mm (100 x 86 x 26 mm with its mounting ears) and weighs 0.5 kg. It works from -25 °C to 70 °C, and power can come from the supplied adapter or from 9-24 VDC on the Euroblock connector.

In the box

• 1 x ETH232AD serial interface
• 1 x 9 VDC 1 A international power supply
• 1 x 6-pin Euroblock connector
• 1 x quick start and warranty sheet

ECLER ETH232AD: frequently asked questions

Which serial standards does the ETH232AD support?

RS-232 on a DB-9 male connector, and RS-422 (4-wire or 2-wire, with built-in terminator) or RS-485 on a 6-pin Euroblock connector.

How is the ETH232AD configured?

From its built-in configuration web page: set the computer to the same IP range, type the unit's IP address in a web browser and log in.

Which operating modes are available?

TCP Server, TCP Client, UDP Server and UDP Client.

How is it powered?

With the supplied 9 VDC 1 A international power supply (100-240 VAC, 50-60 Hz), or with 9-24 VDC on the Euroblock connector.

Where can I buy the ECLER ETH232AD in India?

The ECLER ETH232AD is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.

Workflow 1: Amplifier mute from a user panel

Installers giving staff a simple mute button for a serial-controlled ECLER amplifier.

Connections

Setup

1. Set the serial port to 9600 bps, 8 data bits, no parity, 1 stop bit, RS-232.
2. Set the network to TCP server, keep alive on, port 5000.
3. Create a control button on the user panel that sends SET MUTE ON or SET MUTE OFF to the unit's IP address and port.
4. Press the button and check the amplifier's mute indication.

Tip: Write down each unit's IP address and port in the system documentation.

Workflow 2: Hotel and restaurant control

Hospitality venues with serial-controlled audio equipment managed over the building network.

Connections

Setup

1. Mount the ETH232AD by its ears next to the equipment.
2. Give it a static IP address in the venue network range.
3. Match the serial settings to the device.
4. Add the commands to the control panels used by staff.

Tip: Use the configuration store and copy function when several rooms use the same setup.

Workflow 3: RS-485 device bus

Integrators reaching RS-485 equipment from the IP network.

Connections

Setup

1. Wire the RS-485 pair to terminals 1 and 2 of the Euroblock.
2. Set serial type to RS-485 in the web page.
3. Choose a baud rate between 1200 and 921600 bps to match the bus.
4. Test the link with the TXD and RXD LEDs.

Tip: Respect the polarity of the pair on every device of the bus.

Workflow 4: RS-422 point-to-point

Projects needing longer serial runs in 4-wire or 2-wire RS-422.

Connections

Setup

1. Wire R+, R-, T+ and T- to the device.
2. Set serial type to RS-422 master or slave.
3. Match baud rate, parity, data and stop bits.
4. Confirm data with the TXD and RXD LEDs.

Tip: The built-in terminator supports both 4-wire and 2-wire RS-422.

Workflow 5: Smart building integration

Smart building and domotic projects that send text commands to serial equipment.

Connections

Setup

1. Choose TCP or UDP and server or client mode.
2. Set the listening port (1024-65535) or the destination host.
3. Program the commands in the control system.
4. Limit configuration access to up to 4 IP addresses.

Tip: Change the default user details in the security settings during commissioning.

Workflow 6: Education and corporate rooms

Schools, universities and offices controlling room equipment from one network.

Connections

Setup

1. Install one ETH232AD per serial device or room.
2. Enable DHCP or set static addresses as the network requires.
3. Build simple user panels for each room.
4. Keep firmware up to date from a TFTP server.

Tip: Power each unit from the supplied adapter or from 9-24 VDC on the Euroblock.