The USB Isolator STD 1.0 LWL AB is a device for galvanic isolation of USB connections, developed for use in medical and industrial applications where safe electrical isolation between computer and connected device is required. The device enables transmission of USB 1.1 signals over a fiber optic cable, achieving complete galvanic isolation between the two devices. Signals are transmitted optically, preventing interference caused by electrical potential differences or power supply disturbances. The maximum data transfer rate is 12 MBit/s, corresponding to the USB Full Speed standard. The device is compatible with USB 2.0 ports, allowing seamless use with modern computers and devices.

Applications
The USB Isolator is particularly suitable for medical technology, where connecting medical devices to computers often involves safety requirements. Galvanic isolation protects patients and equipment from dangerous voltage differences that may arise due to differing grounding potentials. In industrial environments with electrical interference or high voltages, the device ensures safe operation. The maximum cable length of 45 meters allows flexible device placement without compromising isolation.

Functions and Features in Detail
The device consists of two parts: the primary unit, connected to the computer, and the secondary unit, connected to the device. The primary unit is powered via the computer’s USB port, while the secondary unit is powered by a 5-volt external power supply included in the package. The two units are connected via a fiber optic cable, standard length 1 meter. Connections are standardized: a USB Type A connector is used at the computer end, and a USB Type B connector at the device end.

Technology Explained Simply
Galvanic isolation is achieved by converting electrical USB signals into optical signals, transmitted over a fiber optic cable. At the receiving end, the optical signals are converted back into electrical signals. This principle protects against electrical interference and enables safe data transmission, even over longer distances. The maximum length of 45 meters is made possible by fiber optic technology, which requires no electrical connections and thus creates no galvanic link between the devices.

Compatibility and Accessories
The USB Isolator is compatible with USB 1.1 and works with USB 2.0 ports. Connections are made using standard USB Type A and Type B connectors, enabling universal use with various devices. The included external power supply ensures power for the secondary unit.

Installation and Mounting
Installation involves connecting the primary unit to the computer’s USB port and the secondary unit to the device. The fiber optic cable connects both units. The external power supply is connected to a power source to supply the secondary unit. The connection is simple and requires no additional tools or configurations.

Operational Advantages
Galvanic isolation provides high protection against electrical interference and voltage differences, which is especially important in medical and industrial applications. The maximum cable length of 45 meters allows flexible device placement. Compatibility with USB 2.0 ports ensures broad usability. The secondary unit’s power supply via an external power adapter ensures independent operation, not dependent on the computer.

Certifications CE, EN 61000-3-2, EN 61000-3-3, and EN55022 confirm compliance with applicable standards for electromagnetic compatibility and safety. These certifications are relevant for use in medical and industrial environments, where high safety and stability requirements apply.