B&B Electronics UH401SL-2KV Quick Start Guide

Product Overview

Upstream

Downstream

Model Number USB Speed Isolation

UH401 Full (12 Mbps) 4 kV

UH401SL Low(1.5 Mbps) 4 kV

UH401-2KV Full (12 Mbps) 2 kV

UH401SL-2KV Low (1.5 Mbps) 2 kV

Connect the Isolator

1

Check LED

2

On = Powerd by the USB bus

The isolator can provide up to 100 mA
of current to the attached downstream
device. But it can’t do this unless the
USB host port is actually providing the
specified 500 mA (Full Power) to the
isolator.

For optimum isolation the computer/host
and the connected device should not use
the same ground.

Do not immerse any portion of the
isolator in water or other liquids. Avoid
spilling any liquids on the isolator and
any attached cables. Liquids may
damage the unit.

The USB isolator is transparent to the operating
system. It does not require configuration.

You may use USB cables up to the
standard 5 meter length on either the
upstream and/or downstream ports.

You can clean the isolator with a soft
cloth moistened with tap or distilled
water and a mild soap if appropriate.
Do not use abrasive materials, cleaners,
or strong solvents.

Troubleshooting

USB Power

All models are USB bus powered and
provide up to 100mA of current to
attached downstream devices when they
are attached to a full power (500 mA)
USB host port.

They comply with the USB 1.1 standard
and transfer data at 12 Mbps or 1.5
Mbps. These data rates are preconfigured
at the factory. You should select a model
that is appropriate for your USB peripheral
(low speed or full speed).

Four models are available. Select a low
speed version, UH401SL or UH401SL­2KV if you are using a low speed device.
Low speed devices are typically human
interface devices such as a mouse or
keyboard.

Models UH401 and UH401SL provide 4 kV
isolation. UH401-2KV and UH401SL-2KV
provide 2 kV isolation.

USB Range

USB has a range limitation of five meters.
Yan extend the range up to 30 meters
using USB hubs. For longer ranges you
can use USB extenders.

http://www.bb-elec.com/Products/USB­Connectivity/Extenders/USB-Extender­Cables.aspx

Recommended Accessories
and Power Supplies

USB Cable

http://www.bb-elec.com/
product11.asp?sku=USBAMBM­BK-15F

4-Port Powered USB Hub

http://www.bb-elec.com/
Products/USB-Connectivity/
Hubs/Industrial-grade-High­Speed-USB-Hubs.aspx

Fast, Easy Answers

• First, check step 2.

• Then use your smart
phone to access complete

documentation on our

web site. Simply scan
the code to the right.

USBAMBM-BK-15F

UHR304

UH401x

USB to USB Isolator

First Things First...

Before you begin, be sure you have
the following:

USB to USB Isolator

One Meter USB Cable

Document number – p/n 8647 r005 UH401x - 5012

1-888-948-2248 | Europe: [phone]

www.bb-elec.com

707 Dayton Road | PO Box 1040 | Ottawa, IL 61350

Phone: [phone] | Fax: [phone]
www.bb-elec.com | E-mail: [e-mail]

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