Personal Computer User Manual

AR-B1851 User’s Guide

AR-B1851

3.5 Fan Connector (FAN1)

The AR-B1851 provides one connectors for CPU cooling fan they can be

controlled by Super I/O Chip.

•

FAN1: Fan Connector for CPU

3.6 LAN RJ45 Connector (LAN1/2)

AR-B1851 is equipped with built-in 10/100Mbps(Option) or

1000MbpsEthernet Controller. You can connect it to your LAN through

RJ45 LAN connector. The pin assignments are as following:

• LAN1/2 : LAN RJ45 Connector

PIN NO. DESCRIPTION PIN NO. DESCRIPTION

1 TX+ 5. N/C

2 TX- 6. RX-

3. RX+ 7. N/C

4. N/C 8. N/C

PIN NO. DESCRIPTION

1 GND

2 +12V

3 PWM Signal