Seco SBC-C90, Руководство пользователя

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SBC-C90
SBC-C90 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
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3.3.10 M.2 3042 Socket 2 Key B WWAN Slot
It is possible to increase the networking possibilities of SBC-C90
board by using M.2 Socket 2 Key B WWAN modules (i.e.
modem modules).
The connector used for the M.2 WWAN slot is CN20, which is a
standard 75 pin M.2 Key B connector, type LOTES p/n
APCI0087-P001A, H=8.5mm, with the pinout shown in the table
on the left.
On the SBC-C90 board there is also a Threaded Spacer which
allows the placement of M.2 Socket 2 Key B WWAN modules in
2242 or 3042 size.
Signal Description
/ USB_P4-: USB Port #4 differential pair
US/USB_SSRX4-: USB Super Speed Port #2 receive differential pair
US/USB_SSTX4-: USB Super Speed Port #2 transmit differential pair
P/PCIe1_Tx-: PCI Express lane #1, Transmitting Output Differential pair
P/PCIe1_Rx-: PCI Express lane #1, Receiving Input Differential pair
PC/ PCIe1_CLK-: PCI Express Reference Clock for lane #1, Differential Pair
WAKE_ON_WWAN#: Wake Input, 1.8V_ALW active low signal with 100k
Ω
pull-up
resistor. It must be externally driven by the Connectivity module plugged in the slot when it
requires waking up the system.
M.2 WWAN Slot (Socket 2 Key B type 3042) - CN20
Pin Signal Pin Signal
1 CONFIG_3 2 +3.3V_ALW
3 GND 4 +3.3V_ALW
5 GND 6 PWR_OFF#
7 8 W_DISABLE1#
9 USB_P4- 10 ---
11 GND 20 ---
21 CONFIG_0 22 ---
23 WAKE_ON_WWAN# 24 ---
25 --- 26 W_DISABLE2#
27 GND 28 ---
29 USB_SSRX4- 30 UIM_RST#
31 US 32 UIM_CLK
33 GND 34 UIM_DATA
35 USB_SSTX4- 36 UIM_PWR
37 US 38 ---
39 GND 40 ---
41 PCIe1_Rx- 42 ---
43 P 44 ---
45 GND 46 ---
47 PCIe1_Tx- 48 ---
49 P 50 PCIE_RST#
51 GND 52 CLK_REQ1#
53 PCIe1_CLK- 54 M.2_WAKE#
55 PC 56 ---
57 GND 58 ---
59 --- 60 ---
61 --- 62 ---
63 --- 64 ---
65 --- 66 ---
67 --- 68 SUS_CLK
69 CONFIG_1 70 +3.3V_ALW
71 CLK_REQ2# 72 +3.3V_ALW
73 GND 74 +3.3V_ALW
75 CONFIG_2