Ir1: Infrared Port Module Connector; Usb1: Usb Connector - SOLTEK SL-52D2 User Manual

IR1: Infrared Port Module Connector

The system board provides a 4-pin infrared connectorÑIR1
as an optional module for wireless transmitting and
receiving. Pin 1 through 4 are Receive, GND, Transmit, and
Vcc, respectively.

USB1: USB Connector

This jumper connects to the USB cable to provide USB
device.
1 4
IR1
USB
Vcc D0+
D0– GND
+
–
Vcc D1+
D1– GND
Hardware Installation 21
GND