AOM-DB3500 M.2 B Key——4G/5G

M.2_B Key Pin define

M.2_B  M.2_B Connector Pin Definition
Pin	Signal	1/O	Description
1	GND(Default NC)		Ground
2	+V3.3B_M.2		3.3V source
3	GND		Ground
4	+V3.3B_M.2		3.3V source
5	GND		Ground
6	BKEY_PWR_Z_OFF	I	Active Low. A single control to turn Off WWAN solution
7	BKEY_USB_D+	O	USB Data + Differential Signal.
8	BKEY_W_DISABLE1#	O	Aactive Low,when applied by the system it will disable radio operation on the Adapter that implement radio frequency applications.
9	BKEY_USB_D-	I/O	USB Data - Differential Signal.
10	LED1#_M2_B	O	The Adapters’ status indicators via LED devices.
11	GND		Ground
12-19	Moudle Key		Moudle Key
20	N/A		Not Applicable
21	GND		Ground
22	N/A		Not Applicable
23	BKEY_WOWWAN#_GPIO	O	Used to wake the Platform by the WWAN device
24	N/A		Not Applicable
25	BKEY_DPR_1.8	O	This signal is an input directly to the WWAN Adapter from a suitable SAR sensor.
26	BKEY_W_DISABLE2#	O	Aactive Low,when applied by the system it will disable radio operation on the Adapter that implement radio frequency applications.
27	GND		Ground
28	N/A		Not Applicable
29	BKEY_USB3.0_RX-	I/O	USB3.0 RX - Differential signal.
30	UIM_RESET	I	UIM reset signal.
31	BKEY_USB3.0_RX+	I/O	USB3.0 RX+ Differential signal.
32	UIM_CLK	I	UIM clock signal.
33	GND		Ground
34	UIM_DATA	I/O	UIM data signal.
35	BKEY_USB3.0_TX-	I/O	USB3.0 TX - Differential signal.
36	UIM_VCC	I	Power source for the UIM.
37	BKEY_USB3.0_TX+	I/O	USB3.0 TX + Differential signal.
38	N/A		Not Applicable
39	GND		Ground
40	N/A		Not Applicable
41	BKEY_PERN0	O	PCIe RX - Differential signal.
42	N/A		Not Applicable
43	BKEY_PERP0	O	PCIe RX + Differential signal.
44	N/A		Not Applicable
45	GND		Ground
46	N/A		Not Applicable
47	BKEY_PETN0	I	PCIe TX - Differential signal.
48	N/A		Not Applicable
49	BKEY_PETP0	I	PCIe TX + Differential signal.
50	BKEY_PERST#	I	Active Low.PCIe Reset is a functional reset to the card.
51	GND		Ground
52	BKEY_CLKREQ#	I/O	Active Low.PCIe Clock Request is a reference clock request signal.
53	BKEY_PCIE_CLK-	I	PCIe Reference Clock signals (100 MHz)
54	BKEY_PEWAKE#	I/O	Active Low. When the Adapter supports wakeup, this signal is used to request that the system return from asleep/suspend state to service a  function-initiated wake event.
55	BKEY_PCIE_CLK+	I	PCIe Reference Clock signals (100 MHz)
56	N/A		Not Applicable
57	GND		Ground
58	N/A		Not Applicable
59	N/A		Not Applicable
60	N/A		Not Applicable
61	N/A		Not Applicable
62	N/A		Not Applicable
63	N/A		Not Applicable
64	N/A		Not Applicable
65	N/A		Not Applicable
66	N/A		Not Applicable
67	BKEY_RESET#	I	Active Low.The single control to Reset the WWAN solution.
68	BKEY_CLK	I	32.768 kHz clock supply input that is provided by the Platform chipset to reduce power and cost for the Adapter.
69	GND(Default NC)		Ground
70	+V3.3B_M.2		3.3 V source
71	GND		Ground
72	+V3.3B_M.2		3.3 V source
73	GND		Ground
74	+V3.3B_M.2		3.3 V source
75	GND(Default NC)		Ground