Tripp-Lite U205-004-R Mode D'emploi page 5

Overcurrent
An unlit port LED indicates a problem has been detected and the
port has been deactivated. Disconnect the device connected to the
Port. The Port will unlock only when the HUB is shut down and
restarted. Try reconnecting the device. If the port LED turns off
again, have the device checked.
Specifications
Function
Upstream Ports (Root Ports) 1
Downstream Ports
LEDs
Per-Port Output Voltage
Per-Port Output Current
Get user manuals: See SafeManuals.com
Description
4
1 Self-Powered
4 Downstream Status / Overcurrent
Detection
DC + 5V
500mA(max.)
5