Congatec conga-HPC/uATX-Server User Manual page 30

4.2.4 M.2 Key B Socket
The conga-HPC/uATX-Server provides a standard M.2 key B socket (X9). The X9 socket is routed to the module's PCIe lane 0 and also to the
USB port 3 via a USB hub. The socket supports
3.7 V, set DIP switch SW12 to OFF.
The red LED D5 lights when an activity occurs on socket X9. With DIP switch SW1.3, you can enable the clock request signal for X9 without
connecting an M.2 card. For additional M.2 key B configurations, see tables 23 "SW2 - M.2 key B Configuration" and 24 "SW3 - M.2 WWAN
Configuration".
The UIM interface of the M.2 socket is connected to a nano SIM card slot (X10).
Table 21 X9 PCIe Clock Request Configuration
Switch Configuration
SW1.3 ON
OFF
Table 22 SW12 - M.2 Key B Voltage Selection
Switch Configuration
SW12 ON
OFF
Caution
Do not change SW12 default setting (3.3 V) unless your M.2 module operates with 3.7 V.
Table 23 SW2 - M.2 Key B Configuration
Switch Configuration Description
SW2.1 OFF
ON
SW2.2 OFF
ON
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WWAN devices
Description
Enable clock request immediately for M.2 key B (X9)
Enable clock request only when a PCIe card is connected (default)
Description
Set voltage to 3.3 V (default)
Set voltage to 3.7 V
Disconnect M.2 SMB_ALERT# (default)
Connect M.2 SMB_ALERT#
Disconnect WOWWAN# from WAKE0 (default)
Connect WOWWAN# to WAKE0
in 2242, 2280, 3042 and 3052 M.2 card sizes. For M.2 modules that support
D5
HATXm001
X9
SW1
SW12
SW2
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