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Chapter 3: Jumpers and Switches
M.2 3042/3050/3052 Key B Socket (USB 2.0, USB 3.1 Gen2) for LTE/5G NR Module with 2 x External SIM
Connector location: WWAN1, CN21
SIM socket: SIM 1-1
SIM socket: SIM 1-2
75
74
1
2
Pin
Definition
1
M2B1_CONFIG3
3
GND
5
GND
7
PCIE1_USB_P_T
9
PCIE1_USB_N_T
11
NC
21
M2B1_CONFIG0
23
SMS1_RI_3.5G_R
25
NC
27
GND
PCIE1_USB3_RXN
29
(Default set to USB3)
PCIE1_USB3_RXP
31
(Default set to USB3)
33
GND
PCIE1_USB3_TXN
35
(Default set to USB3)
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Screw hole for 3042 LTE/5G NR module
Screw hole for 3052/3050 5G NR module
Pin
Definition
2
+V3.3A_MINI_1
4
+V3.3A_MINI_1
6
M2B1_POWER_OFF#
8
M2B1_W1_DIS#
10
WWAN1_LED#
20
NC
22
NC
24
NC
26
M2B1_W2_DIS#
28
NC
30
PCIE1_UIM_RST_A
32
PCIE1_UIM_CLK_A
34
PCIE1_UIM_DAT_A
36
PCIE1_UIM_PWR_A
Pin
Definition
PCIE1_USB3_TXP
37
(Default set to USB3)
39
GND
41
PCIE1_U8_RXN (BOM optional)
PCIE1_U8_RXP
43
(NC_BOM optional)
45
GND
PCIE1_U8_TXN
47
(NC_BOM optional)
PCIE1_U8_TXP
49
(NC_BOM optional)
51
GND
PCIE1_CLKN
53
(NC_BOM Optional)
PCIE1_CLKP
55
(NC_BOM Optional)
57
GND
59
NC
61
NC
63
NC
65
NC
67
P1_3.5G_RST#
69
M2B1_CONFIG1
71
GND
73
GND
75
M2B1_CONFIG2
33
Pin
Definition
38
NC
40
NC
42
NC
44
NC
46
NC
48
NC
50
PCIERST# (NC_BOM optional)
PCIE_CLKREQ4#
52
(NC_BOM Optional)
54
M2A_PEWAKE#
56
M2B1_SM1_D
58
M2B1_SM1_C
60
NC
62
NC
64
NC
66
NC
68
M2A_SUSCLK_R
70
+V3.3A_MINI_1
72
+V3.3A_MINI_1
74
+V3.3A_MINI_1
nROK 7251 Series User Manual
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