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SBC-657
Second USB Connector (CN11)
SBC-657 provides four USB (Universal Serial Bus) interface, which
give complete plug and play, hot attach/detach for up to 127
external devices. The USB interfaces comply with USB specifica-
tion Rev. 1.1, and can be disabled in the system BIOS setup.
Second USB Connector (CN11)
Pin
Signal
1
UVCC2
3
USBD#2
5
USBD2
7
GND
9
GND
100Base-T Ethernet Connector (CN12)
This 100Base-T Ethernet connector is a standard RJ-45 connector.
The onboard RTL8139C fast Ethernet controller supports 10Mbps
or 100 Mbps N-way auto-negotiation operation.
Lan Connector (CN12)
Pin
Signal
1
TX+
2
TX-
3
RX+
4
NC
5
NC
6
RX-
7
NC
8
NC
2 6
SBC-657 User's Manual
Pin
Signal
2
GND
4
GND
6
USBD3
8
USBD#3
10
UVCC3
Pin
Signal
13
LVCC3
14
SLED
15
LVCC3
16
ALED
12
GND
11
GND
10
NC
9
NC
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