T
T
T
S
S
S
0
0
0
M
M
M
H
H
H
U
U
U
B
B
B
4
4
4
USB 2.0 4-Port Hub
Transcend Information Inc.
2
Block Diagram
Pinouts
Pin No. Pin Name
01 VCC
02 USB-
03 USB+
04 VSS
Pin Identification
Symbol Function
USB-
USB+
USB differential signal:
The pairs are used to transmit
Data/Address/Command
VSS
Ground
VCC
USB power input
