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Chapter 3: Jumpers and Switches
(BOM Optional)
M.2 3042 Key B Socket (USB 2.0, USB 3.1 Gen2) for LTE/5G NR Module with 2 x External SIM
Connector location: WWAN3, CN7
SIM socket: SIM 3-1
SIM socket: SIM 3-2
75
74
1
2
Pin
Definition
1
M2B2_CONFIG3
3
GND
5
GND
7
PCIE3_USB_P
9
PCIE3_USB_N
11
NC
21
M2B3_CONFIG0
23
TP_SMS3_RI_3.5G_R
25
NC
27
GND
PCIE3_USB3_RXN
29
(Default set to USB3)
PCIE3_USB3_RXP
31
(Default set to USB3)
33
GND
PCIE3_USB3_TXN
35
(Default set to USB3)
Copyright © 2020 NEXCOM International Co., Ltd. All Rights Reserved.
Pin
Definition
2
+V3.3A_MINI_2
4
+V3.3A_MINI_2
6
M2B3_POWER_OFF#
8
M2B3_W1_DIS#
10
WWAN3_LED#
20
NC
22
NC
24
NC
26
M2B3_W2_DIS#
28
NC
30
PCIE3_UIM_RST_A
32
PCIE3_UIM_CLK_A
34
PCIE3_UIM_DAT_A
36
PCIE3_UIM_PWR_A
Pin
Definition
PCIE3_USB3_TXP
37
(Default set to USB3)
39
GND
PCIE_RXN6
41
(NC_BOM Optional)
PCIE_RXP6
43
(NC_BOM Optional)
45
GND
PCIE_TXN6
47
(NC_BOM Optional)
PCIE_TXP6
49
(NC_BOM Optional)
51
GND
PCIE3_CLKN
53
(NC_BOM Optional)
PCIE3_CLKP
55
(NC_BOM Optional)
57
GND
59
NC
61
NC
63
NC
65
NC
67
P3_3.5G_RST#
69
M2B3_CONFIG1
71
GND
73
GND
75
+V3.3A_MINI_3
36
Pin
Definition
38
NC
40
NC
42
NC
44
NC
46
NC
48
NC
50
PCIERST# (NC_BOM Optional)
PCIE_CLKREQ1#
52
(NC_BOM Optional)
54
NC
56
M2B3_SM1_D
58
M2B3_SM1_C
60
NC
62
NC
64
NC
66
NC
68
NC
70
+V3.3A_MINI_3
72
+V3.3A_MINI_3
74
+V3.3A_MINI_3
nROK 7251 Series User Manual
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