
IMB523R / 524R / 525R LGA1151 ATX Motherboard
24
Board and Pin Assignments
2.5.19
Internal USB 3.1 Gen1 Connector (CN21)
The CN21 is a 19-pin internal connector for installing versatile USB 3.1 compliant
peripherals.
Note
CN21 supports USB3.1 GEN 1 when the chipset is customized into
Intel
®
Q370 & C246.
2.5.20
SIM Card Slots (CN19) (Optional)
The mothterboard includes one SIM slot on the bottom side of the system for inserting a
SIM card. It is mainly used in 3G/4G wireless network applications.
Pin Signal
Pin
Signal
1
VBUS0
2
SSRX5-
19
VBUS1
3
SSRX5+
18
SSRX6-
4
GND
17
SSRX6+
5
SSTX5-
16
GND
6
SSTX5+
15
SSTX6-
7
GND
14
SSTX6+
8
USB10-
13
GND
9
USB10+
12
USB11-
10
ID
11
USB11+
Pin
Signal
1
PWR
2
RST
3
CLK
4
NC
5
GND
6
VPP
7
I/O
8
NC
Содержание IMB523
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