4
UNIVERSAL SERIAL BUS HUB
Specifications
Function
Description
Power Consumption
3mA per LED
40mA for HUB control circuit
Upstream
1 USB Series B Receptacle
Connector
Downstream
4 USB Series A Receptacles
LED
Power
1 USB-power (Green LED)
1 Self-power (Red LED)
Port Status
4 Port Active Status (Green LED)
Weight
100g
Dimension (LxWxH)
135mm(L)x72mm(W)x23mm(H)
Power Mode Setting
There are two power modes for USB Hub, one is the self-
powered mode and the other is Bus-powered mode. For self-
powered mode, USB Hub provides all the downstream ports
with each port DC + 5V, 500mA (max.) power supply. For the
Bus-powered mode, USB Hub only provides all four
downstream ports with DC + 5V, 100mA each port in total. In
self-powered mode please make sure that the power adapter is
well installed first and the plug of Power Adapter is inserted into
the Power Jack of the USB Hub, then connecting USB cable.
The powered mode is auto selected while you insert (or remove)
the plug of the power adapter into (or from) the power jack of
USB Hub.