North Star 8000i - Manual (Page 11)

7 Specification
Power supply: 10 V to 35 V DC, 18 W maximum.
Operating temperature: 5ºF to 131ºF (-15ºC to 55ºC).
USB port to Northstar
8000i System: USB 2.0 and 1.0, 1.1 compliant.
USB accessory ports: USB 2.0 and 1.0, 1.1 compliant. Four ports, type A. Each
port can supply power to the accessory, 4.75 V DC to
5.25 V DC, up to 500 mA per port.
Environment: Waterproof to IPX6.
8 Maintenance
Follow the Maintenance Guidelines in the Northstar 8000i System Installation
Manual.
Northstar 8000i 4 Port USB Hub Installation Manual 11