User's Manual Part 1

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Figure 5 PCI Express M.2 Module Interface
A complete description of all interface signals available at the host interface is listed in Table
4. Some features, such as GNSS and Antenna Tuning, are not available on every M.2 module.
On those modules, the signals at the application interface are not connected on the M.2
module.
Table 4
M.2 Host Interface Signals
Pin Signal Name I/O Description Supply
1
CONFIG_3 O Presence Indication:
WWAN M.2 Connects to GND
internally
-
2 3.3V P M.2 Supply Pin 3.3 V 3.3 V
3 GND P Ground -
4 3.3V P M.2 LTE Supply Pin 3.3 V 3.3 V
5 GND P Ground -
6 FULL_CARD_POWER_OFF# I
Control signal to power On/Off
M.2.
1.8 V
7 USB D+ IO USB 2.0 HS DPLUS Signal
8 W_DISABLE# I Active low signal to Disable
Radio Operation
3.3 V
9 USB D– IO USB 2.0 HS DMINUS Signal