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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
5
C
7
Battery
S1
S3
2
2
10
9
2
10
9
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
GBE_LED_1000-
2
GBE_LED_100-
3
GBE_LED_LINK_ACT-
4
3V3DU
5
LINK_1000_2
6
LINK_100_2
7
LINK_ACTIVITY_2
8
3V3DU
1
5
C
7
Battery
S1
S3
2
2
10
9
2
10
9