www.d
fi
.com
29
Chapter 2 Hardware Installation
Chapter 2
The SMBus (System Management Bus) connector is used to connect SMBus devices. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
SMBus Connector
SMBus
1
2
5
GND SMB_Data
SMB_CLK
3V3DU
SMB_Alert
1
29
32
30
31
29
32
30
31
1
2
8
7
2
22
1
2
1
S1
S3
2
10
9
2
10
9
Battery
19
LAN LED Connector
LAN LED
7
8
1
2
The LAN LED connector is used to detect the connection state of RJ45 LAN ports when the
connection is made to an active network via a cable. The pin functions of the LAN LED con-
nector are listed below.
Pin
Pin Assignment
Pin
Pin Assignment
1
LINK_1000_4
2
LINK_100_4
3
LINK_ACTIVITY_4
4
3V3DU
5
GBE_LED_1000-
6
GBE_LED_100-
7
GBE_LED_LINK_ACT-
8
3V3DU
1
29
32
30
31
29
32
30
31
1
2
8
7
2
22
1
2
1
S1
S3
2
10
9
2
10
9
Battery
19