USB Hub

Hubs can be daisy-chained up to 5 deep in series, or in any combination that does not exceed 127 devices.

Hubs are dual-powered devices. They can be powered via the uplink connection (bus-powered), or by an optional power supply (self-powered).

When bus-powered, downstream ports support only “low- power” devices, such as a mouse, keyboard or a self- powered hub.

When self-powered, downstream ports can support “high- power” devices, such as a printer or a bus-powered hub.

Note: A USB204A must be self-powered by an optional power adapter to daisy-chain to another hub that is only bus-powered.

Connect the Hub to the Host PC

The USB204A should be connected directly a host PC’s USB port. The hub only has to be plugged in to the host USB connector to operate. Up to 4 other hubs can then be daisy-chained in series from the first hub.

1. Prepare standard shielded 90W USB cable with Type-A (upstream) and Type-B (downstream) plugs on each end. The maximum cable length is 5 meters (16.4 feet).

2.Connect the Type-A end of the cable to the host PC’s USB port and the Type-B end to the hub.

3.Check that the hub’s upstream port LED is green. If this LED is red or off, then follow the advice in the section “Troubleshooting” to diagnose the problem.

Connect Devices to the Hub

Before connecting devices to the hub, check the USB interface requirements. Devices can be “low-power” or “high- power,” with “low-speed” or “full- speed” signaling. The USB204A is a high-power, full-speed device. Refer to instructions supplied with each USB device for their individual operation.

1. Prepare standard 90W USB cable with Type-A (upstream) and Type-B (downstream) plugs on each end.

Low-Speed Devices:

Shielded or unshielded 90W USB cable

Full-Speed Devices:

Shielded 90W USB cable

Cable Length:

Maximum 3 m (9.8 ft) for unshielded cable

 

Maximum 5 m (16.4 ft) for shielded cable

4

Page 4
Image 4
Accton Technology USB204A manual USB Hub, Connect the Hub to the Host PC, Connect Devices to the Hub

USB204A specifications

Accton Technology USB204A is a compact and efficient USB 2.0 hub that expands connectivity options for a variety of devices. With the growing number of peripherals used in today’s digital landscape, the need for reliable and versatile USB hubs has never been greater. The USB204A is designed to cater to the demands of users who require additional USB ports for their laptops, desktops, and other devices.

One of the main features of the USB204A is its capability to provide four downstream USB ports. This allows users to connect multiple devices simultaneously, such as printers, external hard drives, keyboards, and mice, without sacrificing performance. The USB 2.0 specification ensures data transfer rates of up to 480 Mbps, which is suitable for most peripherals used in everyday computing.

Another significant characteristic of the Accton Technology USB204A is its plug-and-play functionality. Users can easily connect the hub to their device without the need for complex installation processes or additional drivers. This ease of use is a critical feature for those who need a quick and hassle-free solution to expand their USB connectivity.

The USB204A is designed with a compact form factor that doesn’t take up much desk space, making it an excellent choice for both home and office environments. Its lightweight design ensures portability, allowing users to carry it along with their laptops or other devices without inconvenience.

Power management is another important aspect of the USB204A. The hub features a power-saving mode that helps minimize power consumption when not all ports are in use, making it an eco-friendly option for consumers. It supports bus-powered modes, eliminating the need for an external power supply, which enhances its usability and convenience.

In terms of build quality, Accton Technology focuses on delivering durable products. The USB204A is made with quality materials designed to withstand everyday use. The hub is also equipped with built-in protections against over-current and short-circuiting, ensuring both user and device safety while maintaining performance.

Overall, the Accton Technology USB204A is a reliable and versatile USB hub that effectively meets the connectivity needs of modern users. Its combination of features, ease of use, compact design, and robust safety measures make it an excellent choice for anyone looking to enhance their device's connectivity options.