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Quick Installation Guide
Product Specifications
Standards Conformance Universal Serial Bus Specification 1.0
Number of Ports 4 USB Type-A (downstream) ports
1 USB Type-B (upstream) port
Dimensions 120 x 96 x 28 mm (4.74 x 3.78 x 1.1 in)
Weight 316 g ( 11.1 oz)
System Requirements A PC that supports the Universal Serial Bus
An operating system with a generic USB hub driver,
including Windows 95 (OSR2.1 or later), 98, 2000, and iMac
Power Requirements
Bus-Powered Mode 2.5W, 5 VDC at 0.5A max. (from USB host controller)
Self-Powered Mode 11W, 5.25 VDC at 2.5A max. (100-240 VAC, 50/60 Hz from
optional adapter)
Maximum Current 2.1A @ 5.25 VDC (from adapter)
Cable Wiring
Full-Speed Devices 90W shielded USB cable
Low-Speed Devices 90W shielded or unshielded USB cable
Maximum Length 5 m (16.4 ft) for shielded cable, 3 m (9.8 ft) for unshielded
Maximum Devices 127 (5 hubs in daisy-chain, 6 cables end-to-end max.)
Access Method Differential and bi-directional per USB spec. 1.0
12 Mbps full speed, 1.5 Mbps low speed
Status LEDs Power, Bus/Local, Reset, Port 1-4 (on=power,off=failure),
Uplink (green=power/activity, red=overcurrent)
Environmental
Temperature 0° - 40°C / 32° - 104°F (Standard Operating)
-20° - 70°C / -4° - 160°F (Storage)
Humidity 5 - 95% (Noncondensing)
Certification CE Mark
Emissions FCC Class B, VCCI Class B, CISPR Class B
Safety UL