©Sealevel Systems, Inc.
HUB7i Manual
4
SL9178 05/2012
Once associated only with desktop peripherals, USB I/O devices are now commonly found in
industrial and OEM applications. The voltage spikes, power surges, and ground loops that affect
traditional serial interfaces also affect USB devices. Sealevel’s HUB7i is an optically isolated USB
hub that connects up to seven USB peripherals and protects the host computer from voltages
up to 4000 VAC.
The HUB7i is powered by an industrial grade wall-mount power supply that provides up to 3000
VAC isolation. For medical and other specialized applications, an optional medical grade power
supply is available that increases the isolation to 4000 VAC, which offers the highest level of
protection available from any USB hub manufacturer.
Status LEDs on the HUB7i indicate external power, connection to the host, and fault conditions.
The hub is housed in a rugged plastic enclosure and is USB 1.1 compliant and USB 2.0
compatible. The HUB7i integrates a high-retention USB type "B" connector that prevents
accidental disconnection of the USB cable, while the seven type "A" connectors provide a full
500mA to each attached USB peripheral.
Features
Provides 3000 VAC isolation on upstream USB port
Optional 4000 VAC isolation (with optional medical grade power supply)
High-retention USB type “B” connector prevents accidental disconnection of the upstream
USB cable
Includes seven powered downstream USB ports with 500mA available per port
Status LEDs indicate external power, connection to host, and fault conditions
USB 1.1 compliant and 2.0 compatible
Housed in rugged, attractive plastic enclosure
