18
3.9
Fan Connectors (FAN1-FAN3)
The ROCKY-4782E2V provides two CPU cooling fan connectors, which can supply
12V/500mA to the cooling fan. All connectors have the same pin assignments and
there is a “rotation” pin in fan connector to transmit the fan’s rotation signal to
system for the BIOS to detect the fan speed. This feature is only supported with
certain cooling fans.
FAN1-FAN3: Fan Connectors
PIN DESCRIPTION
1 Rotation
Signal
2 +12V
3 Ground
3.10
LAN RJ45 & State LED Connectors (CN15, CN18, CN21,
CN22)
The ROCKY-4782E2V is equipped with two built-in 10/100Mbps Ethernet controllers.
You can connect it to your LAN through the RJ45 LAN connectors. There are two LED
on the connector indicating the status of LAN. The pin assignments are as follows:
CN21 (ICH2), CN22 (i82559): LAN RJ45 Connector
PIN DESCRIPTION
PIN
DESCRIPTION
1 TX+ 5 N/C
2 TX- 6 RX-
3 RX+ 7 N/C
4 N/C 8 N/C
CN15 (ICH2), CN18 (i82559): LAN State LED Connector
PIN DESCRIPTION
1-2 ACT/LINK
3-4 100TX
