J27, J28: Usb Connector - TMC AI5TV User Manual

J20: Infrared Connector
This connector is used for an IrDA connector.
+5V IRRX IRTX
N.C. GND
J27, J28: USB Connectors
J27 and J28 are pin headers for the optional USB external connector.
The following table shows the pin out assignments of these connectors.
J27 1
2
3
4 USB
AI5TV Motherboard User's Manual
J27 (USB1)
1 J28
2 Pin #
3
4
J20 Pin #
1
2
3
4
5
J28 (USB2)
Pin #
1 1
2 2
3 3
4 4
Chapter 4 Installation
Signal Name
+5V
No connect
Ir RX
Ground
Ir TX
Signal
Name
Vcc
USB-
USB+
Ground
21