ICUSB234854I - Interface Hub StarTech.com - Free user manual and instructions

Product Type	Interface Hub
Brand	StarTech.com
Model	ICUSB234854I
Number of USB Ports	4
USB Standard	USB 3.0 (5 Gbps)
Power Supply	External power adapter (included)
Dimensions	100 x 50 x 20 mm
Weight	150 g
Supported Operating Systems	Windows, macOS, Linux
LED Indicators	Power and activity
Overcurrent Protection	Yes
ESD Protection	Yes
Operating Temperature	0 to 70°C
Storage Temperature	-20 to 80°C
Cable Length	1 m integrated USB cable
Warranty	2 years
Certifications	CE, FCC, RoHS
Package Contents	Hub, power adapter, USB cable, manual
Cleaning and Maintenance	Wipe with a dry, soft cloth. Do not use liquids or solvents.
Safety Precautions	Use only with supplied power adapter. Keep away from moisture and heat sources.
Spare Parts and Repairability	Spare parts not available individually. Contact StarTech.com support for repair options.

Frequently Asked Questions - ICUSB234854I StarTech.com

What operating systems are compatible with the StarTech.com ICUSB234854I?

The hub is compatible with Windows, macOS, and Linux operating systems. No additional drivers are required for basic functionality.

Does the hub support USB 3.0 speeds?

Yes, the hub supports USB 3.0 (5 Gbps) speeds when connected to a USB 3.0 port. It is backward compatible with USB 2.0 and USB 1.1 devices.

Can I charge my smartphone or tablet using this hub?

The hub provides standard USB power (up to 0.9A per port when using the included external power adapter). It can charge most smartphones and small tablets, but high-power devices may charge slowly.

Is the hub plug-and-play?

Yes, the hub is plug-and-play. Simply connect it to your computer's USB port or use the included power adapter for self-powered operation. No driver installation is needed.

What is the maximum power output per port?

When powered via the external adapter, each USB port can deliver up to 900 mA (0.9A) as per USB 3.0 specifications. Bus-powered mode may limit power to 500 mA per port.

Can I use USB 2.0 or USB 1.1 devices with this hub?

Yes, the hub is backward compatible with all USB 2.0 and USB 1.1 devices. They will operate at their native speeds.

How do I install drivers for the ICUSB234854I?

Most operating systems recognize the hub automatically. If needed, drivers can be downloaded from the StarTech.com support page for specific features like port mapping or advanced configuration.

What should I do if my computer does not recognize the hub?

First, check that the power adapter is connected and the hub's LED is lit. Try a different USB port on your computer. If the issue persists, restart your computer or update your USB controller drivers. Contact StarTech.com support if the problem continues.

Is this hub compatible with USB-C laptops?

Yes, it can be used with USB-C laptops if you have a USB-C to USB-A adapter or a USB-C hub with USB-A ports. The hub itself has a standard USB-A input cable.

What is the warranty period for the StarTech.com ICUSB234854I?

The hub comes with a 2-year limited warranty from StarTech.com. For warranty claims or support, visit the StarTech.com website or contact their customer service.

USER MANUAL ICUSB234854I StarTech.com

4-Port Industrial USB to Serial Adapter Hub - RS-232/RS-422/RS-485 DIN Rail and Wall Mountable

ICUSB234854I

• 1 x USB serial hub
• 1 x USB-B with screw lock to USB-A cable
• 1 x DIN rail kit
  • 1 x instruction manual

Requirements

• USB-enabled computer with an available USB 2.0 port
• Any of the following operating systems:

• Microsoft Windows ^® 10, 8/8.1, 7
• Microsoft Windows Server® 2012, 2008, 2003
• macOS High Sierra (10.13), Sierra (10.12) El Capitan (10.11), Yosemite (10.10), Mavericks (10.9)
- Linux® kernel 3.5 to 4.11.x, LTS versions only
• Phillips type screwdriver

Operating system requirements are subject to change. For the latest requirements, please visit www.StarTech.com/ICUSB234854I.

Product diagram

Pinouts

RS-232 mode

RS-422/RS-485 4-wire mode

RS-485 2-wire mode

For the latest information, technical specifications, and support for this product, please visit www.StarTech.com/ICUSB2348541.

Installation

Notes:

• You may need to restart your computer during the software installation process. Be sure to save any unsaved material before you install the software.

• Configure your port settings before installing the USB serial hub.

• Download the latest software from the StarTech.com website: www.StarTech.com/ICUSB234854I.

• The software that corresponds with your operating system will be compressed in a .zip folder. Download and extract the contents of that folder to a location on your computer that's easy to access, such as your Desktop or Downloads folder.
• Open the folder that corresponds with your specific operating system and launch the installer file.
• Follow the on-screen prompts to complete the installation, and if instructed to do so, restart your computer.
• Connect each of your serial devices to the port you've configured for their connection.
• Connect the USB-A to USB-B cable to the USB 2.0 port on the USB serial hub and to a USB port on your computer.
• (Optional) If you require AUX power (fully loaded) connect your power adapter to an AC outlet, then connect the Power adapter port to the USB serial hub.

Configure port settings

The serial adapter hub supports four different modes (RS-232, RS-422, RS-485 2-wire, and RS-485 4-wire) with different power and termination options. You can set the mode and settings for each individual port by adjusting the jumpers inside the serial adapter hub's housing. To access the jumpers, open the access panel on the back of the housing using a Phillips type screwdriver to remove the two screws.

Jumper groups for each port

Each port has its own set of jumpers that enable you to assign the settings for each individual port.

Top-down view of an electronic circuit board with multiple integrated circuits and capacitors (no visible text or symbols)

Port 1
Port 2 Port 3
Port 4

Jumper group settings

There are three settings that you can define for each port: Mode, Power and Termination. Each setting has its own jumper group used to define each port set.

graph LR
    A["Power group"] --> B["Mode group"]
    B --> C["Terminators group"]
    C --> D["ON OFF"]
    D --> E["RX+"]
    D --> F["RX-"]
    D --> G["TX+"]
    D --> H["TX-"]
    B --> I["485-2 485-4 422 232 R1 +5V AUX"]

The tables below outline the available settings for each jumper group.

Mode (COM Standard)		Use the Mode jumper group to define the serial communication standard each port uses.Note: If the mode is set to RS-232 it's important to set all terminations to the off position (see Jumper group settings, Terminations for details).
	RS-232 (default)
	RS-422
	RS-485 4-wire
	RS-485 2-wire

Power (Pin-9) Use the Power jumper group to define the pin-9 power requirements for each port.
	AUXpower adapteron pin-9
	+5V DCon Pin-9
	No power / RIon pin-9(default)

Jumper group settings cont'd

Terminations Use the Ter		Terminations jumper group to define which of your send and receive communication pins are on and off for each port.
	Both RX+/RX- and TX+/TX-terminators are disabled (Terminators for RS-232 mode) (default)
	TX+/TX-terminators are enabled (Standard terminators for RS-485 2-wire mode)	Notes:· Because RS-232 utilizes different communication pins and additional signals can cause interference, it's recommended that all terminators be set to off in RS-232 mode.· While standard terminations for each mode are recommended, your termination requirements may vary depending on your application and the specific device you're communicating.
	RX+/RX-terminators are enabled
	Both RX+/RX- and TX+/TX-terminators are enabled (Standard terminators for RS-422 and RS-485 4-wire mode)

About the LED indicators

The adapter features two sets of LED indicators for each port:

- The Port mode LEDs illuminate solid to indicate what mode each port is set to.

- The Port send/receive LEDs blink to indicate that data is being sent or received.

FCC Compliance Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver.

- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

- Consult the dealer or an experienced radio/TV technician for help

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by StarTech.com could void the user's authority to operate the equipment.

Industry Canada Statement

This Class B digital apparatus complies with Canadian ICES-003.

Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols

This manual may make reference to trademarks, registered trademarks, and other protected names and/or symbols of third-party companies not related in any way to

StarTech.com. Where they occur these references are for illustrative purposes only and do not represent an endorsement of a product or service by StarTech.com, or an endorsement of the product(s) to which this manual applies by the third-party company in question. Regardless of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby acknowledges that all trademarks, registered trademarks, service marks, and other protected names and/or symbols contained in this manual and related documents are the property of their respective holders. Phillips is a registered trademark of the Phillips Screw Company in the United States and other countries. Linux ^® is the registered trademark of Linus Torvalds in the U.S. and other countries. Windows ^® is a registered trademark of Microsoft Corporation in the United States and/or other countries. macOS is a trademarks of Apple Inc., registered in the U.S. and other countries.

Technical Support

StarTech.com's lifetime technical support is an integral part of our commitment to provide industry-leading solutions. If you ever need help with your product, visit www.startech.com/support and access our comprehensive selection of online tools, documentation, and downloads.

For the latest drivers/software, please visit www.startech.com/downloads

Warranty Information

This product is backed by a two-year warranty.

StarTech.com warrants its products against defects in materials and workmanship for the periods noted, following the initial date of purchase. During this period, the products may be returned for repair, or replacement with equivalent products at our discretion. The warranty covers parts and labor costs only. StarTech.com does not warrant its products from defects or damages arising from misuse, abuse, alteration, or normal wear and tear.

Limitation of Liability

In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their officers, directors, employees or agents) for any damages (whether direct or indirect, special, punitive, incidental, consequential, or otherwise), loss of profits, loss of business, or any pecuniary loss, arising out of or related to the use of the product exceed the actual price paid for the product. Some states do not allow the exclusion or limitation of incidental or consequential damages. If such laws apply, the limitations or exclusions contained in this statement may not apply to you.