StarTech.com 4 Port Industrial USB to RS232/RS485/RS422 Serial Hub (ICUSB234854I) User Manual

1. Produit terminéview

The StarTech.com ICUSB234854I is an industrial-grade 4-port USB to RS232/RS485/RS422 serial adapter hub designed to add four serial communication ports to your computer. This device facilitates connection, monitoring, and control of various serial devices such as sensors, barcode scanners, and LED signage in demanding environments.

Les principales caractéristiques comprennent :

• Versatile Serial Protocols: Supports RS232, RS422, 4-wire RS485, and 2-wire RS485 operating modes.
• Conception robuste : Features an IP30-rated metal housing for durability in harsh industrial settings.
• Protection renforcée : Provides 15 kV ESD (Electrostatic Discharge) protection to prevent damage from voltage pointes.
• Montage flexible : Includes built-in wall-mounting brackets and a DIN rail mounting kit for secure installation.
• Connexions sécurisées : Equipped with screw-locking host USB-B and serial connectors to prevent accidental disconnections.
• Transfert de données à haut débit : Utilizes high-speed UARTs for data rates up to 921.6 Kbps across all operating modes.
• Large compatibilité: Compatible with current and legacy Windows, Linux, macOS, and embedded platforms.

Image 1.1 : Inclinée view of the StarTech.com 4 Port Industrial USB to Serial Hub (ICUSB234854I), showing the four DB9 serial ports, USB-B input, and power input.

2. Contenu du colis

Vérifiez que votre colis contient les éléments suivants :

• 1x USB Serial Hub (ICUSB234854I)
• 1x USB-B with screw lock to USB-A cable
• 1x DIN rail kit
• 1x Manuel d'instructions

Image 2.1: Contents of the StarTech.com 4 Port Industrial USB to Serial Hub package, including the hub, USB cable, DIN rail kit, and instruction manual.

3. Composants matériels

Image 3.1 : Haut view of the serial hub, detailing the four DB9 serial ports (Port 1-4), individual RX/TX LEDs, and mode indicators (232, 422, 485-4, 485-2) for each port. A power LED (PWR) is also visible.

• Serial Ports (1-4): Four DB9 male connectors for connecting serial devices.
• Voyants RX/TX : Individual Receive (RX) and Transmit (TX) indicator LEDs for each serial port, showing data activity.
• Indicateurs de mode : Labels (232, 422, 485-4, 485-2) next to each port indicate the configurable serial communication modes.
• DEL PWR : Indicateur d'alimentation LED.

Image 3.2 : Côté view of the serial hub, showing the 12V DC power input and the USB-B host connection port.

• Entrée d'alimentation 12 V CC : Connector for an optional 12V DC power adapter (not included).
• USB-B Host Connection: Port for connecting the hub to your computer via the supplied USB-B to USB-A cable.

Image 3.3 : Bas view of the serial hub, revealing the internal jumper settings for configuring RS232 and RS422/RS485 pinouts. This section is typically accessed for advanced configuration.

• Internal Configuration Jumpers: Located on the underside, these jumpers allow individual configuration of each serial port for RS232, RS422, or RS485 (2-wire/4-wire) modes, and termination settings. Refer to the detailed manual for specific jumper settings.

4. Configuration et installation

4.1 Installation du pilote

For most modern operating systems, including Windows 10/11, Linux (e.g., Ubuntu 22.04), and macOS, the necessary drivers are typically installed automatically upon connecting the device (plug-and-play). Manual driver installation is generally not required.

• Fenêtres : The device should be recognized automatically. If not, check Device Manager for unrecognized devices and visit the StarTech.com support website pour le téléchargement de pilotes spécifiques.
• Linux: The device typically appears as /dev/ttyUSB0 à /dev/ttyUSB3 (for ports 1-4). You can verify detection using lsusb et dmesg commandes.
• macOS: Drivers are usually installed automatically.

4.2 Connexion matérielle

1. Se connecter à l'ordinateur hôte : Use the provided USB-B to USB-A cable to connect the serial hub's USB-B port to an available USB port on your computer. Ensure the screw-locking mechanism is secured.
2. Connexion électrique : The hub can be powered via the USB connection (5V) or an optional 12V DC power adapter (not included). For applications requiring higher power output on serial port pin 9, a 12V DC power adapter is necessary.
3. Connecter des périphériques série : Connect your RS232, RS422, or RS485 devices to the DB9 serial ports (Port 1-4) on the hub. Secure any screw-locking connectors on your serial cables.

4.3 Port Configuration (Jumpers)

The operating mode (RS232, RS422, 4-wire RS485, 2-wire RS485) for each serial port is configured using internal jumpers located on the underside of the device. This configuration is performed physically, not through software.

1. Access Jumpers: Carefully detach the hub from any mounting and access the underside panel where the jumpers are located (refer to Image 3.3).
2. Configure Mode: Adjust the jumpers for each port according to the desired serial communication standard (RS232, RS422, RS485). Consult the detailed pinout and jumper setting diagrams in the full product manual for precise instructions.
3. Set Termination: If required for RS422/RS485 networks, configure termination resistors using the appropriate jumpers.
4. Pin 9 Power: Each serial port's Pin 9 can be configured to output 5V, 12V (requires external 12V DC power adapter), or 0V. Adjust jumpers as needed.

Note: Incorrect jumper settings can prevent communication. Always refer to the specific pinout diagrams for your desired configuration.

4.4 options de montage

The serial hub offers flexible mounting options:

• Montage mural : Utilize the built-in wall-mounting brackets for secure attachment to a flat surface.
• Montage sur rail DIN : Use the included DIN rail kit to mount the hub onto a standard DIN rail, common in industrial control panels.

5. Mode d'emploi

Once the hub is connected and configured, it functions as a transparent serial port expander for your system. Data transmission and reception are indicated by the RX/TX LEDs for each port.

• Communication de données: Use your serial communication software or application to interact with the connected serial devices through the assigned COM ports (Windows) or /dev/ttyUSBx devices (Linux/macOS).
• Monitoring Activity: Observe the RX (Receive) and TX (Transmit) LEDs on the hub. A flashing RX LED indicates data being received by the hub on that port, while a flashing TX LED indicates data being transmitted from the hub on that port.
• Débits en bauds : The hub supports data rates up to 921.6 Kbps. Ensure your connected devices and software are configured to the correct baud rate.

6. Entretien

The StarTech.com ICUSB234854I is designed for industrial environments and requires minimal maintenance.

• Nettoyage: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or solvents, as these can damage the electronics.
• Protection de l'environnement : The IP30 rating provides protection against solid objects larger than 2.5mm, but it is not waterproof. Avoid exposing the device to liquids or excessive moisture.
• Protection ESD : The 15 kV ESD protection helps safeguard the device from electrostatic discharge. However, always handle the device with care and follow standard ESD precautions when working with electronic components.
• Mises à jour du micrologiciel : Check the StarTech.com webConsultez régulièrement ce site pour vérifier la disponibilité de mises à jour du micrologiciel susceptibles d'améliorer les performances ou la compatibilité.

7. Dépannage

• Appareil non détecté :
  • Assurez-vous que le câble USB est correctement connecté à la fois au hub et à l'ordinateur.
  • Essayez de connecter le hub à un autre port USB de votre ordinateur.
  • If using an external power adapter, ensure it is properly connected and providing power.
  • Temporarily remove other serial USB devices from your system, then connect the hub and reboot if necessary.
  • Check your operating system's Device Manager (Windows) or use lsusb et dmesg (Linux) to verify device detection and driver status.
• Aucune communication avec le périphérique série :
  • Verify that the serial device is correctly connected to one of the hub's DB9 ports.
  • Confirm that the internal jumpers for the specific port are correctly configured for the serial protocol (RS232, RS422, RS485) required by your device.
  • Ensure your serial communication software is configured to the correct COM port (or /dev/ttyUSBx device), baud rate, data bits, parity, and stop bits.
  • Check the RX/TX LEDs on the hub for activity. If no LEDs flash during communication attempts, there might be an issue with the device, cable, or software configuration.
  • If using RS422/RS485, verify termination settings are correct for your network topology.
• Port Numbers Not Sequential (Linux):
  • In some Linux environments, port allocations (e.g., /dev/ttyUSB0, /dev/ttyUSB1) may not always correspond numerically to the physical ports on the hub. This is a system-level behavior and typically does not affect functionality. You can identify which /dev/ttyUSBx corresponds to which physical port through testing or system logs.

8. Spécifications

9. Garantie et assistance technique

This StarTech.com product is backed by a Garantie d'un an.

For the most up-to-date information on warranty terms and conditions, or for technical assistance, please visit the official StarTech.com support website:

www.startech.com/support