Microsim Slot - Seco SBC-C23 User Manual

59 ---
61 ---
63 ---
65 ---
67 M2_RST
69 ---
71 GND
73 GND
75 ---
I2C3_ALERT#: I2C Bus Alert Line. NVCC_1V8 signal directly managed through i.MX6SX pin RGMII1_TXC.
3.3.6 Optional microSIM Card Slot and eSIM

microSIM Slot

CN66
Pin Signal Pin Signal
1 UIM_VDD 5 GND
2 UIM_RST 6 ---
3 UIM_CLK 7 UIM_DATA
4 --- 8 ---
Here following the factory possibilities for microSIM slot and eSIM:
•
microSIM Slot connected to the onboard module
•
eSIM connected to the onboard module
•
microSIM Slot connected to the M.2 slot
•
eSIM connected to the M.2 slot
•
microSIM Slot + eSIM connected to the onboard module
SBC-C23
SBC-C23 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: S.B. - Reviewed by L.B. -Copyright © 2020 SECO S.p.A.
60 ---
62 ---
64 ---
66 SIM_DETECT
68 ---
70 +3.3V_ALW
72 +3.3V_ALW
74 +3.3V_ALW
As a factory option, interfaced to the M.2 WWAN slot CN12 or to the embedded modem
described at par. 3.3.14, there can be a microSIM Card Slot.
With this slot it is possible to use the microSIM card provided by any telecommunication operator
for the connection to their network, using the modem module plugged in M.2 Slot CN12 or the
embedded on-board modem.
The socket is type MOLEX. p/n 78800-0001or equivalent, with the pinout shown in the table on the left.
Another factory option includes an electronic SIM soldered on-board. Depending on the factory option
purchased, on the board there can be the microSIM Card slot, the e-SIM or both.
M2_RST: Reset Signal that is sent from the processor module plugged in CN12 slot
NVCC_1V8 signal directly managed through i.MX6SX pin RGMII2_TXC.
SIM_DETECT: Sim Detect output, sent to the WWAN module to signal insertion or removal of
the SIM in the slot. NVCC_1V8 signal managed also through i.MX6SX pin RGMII1_TD3.
This pin can also be forced to be low through the jumper JP9
I2C3_SCL: I2C Bus clock line. Bidirectional signal, electrical level NVCC_1V8 with a 2k2Ω pull-
up resistor. It is managed by i.MX6 processor's I2C3 controller.
I2C3_SDA: I2C Bus data line. Bidirectional signal, electrical level NVCC_1V8 with a 2k2Ω pull-
up resistor. It is managed by i.MX6 processor's I2C1 controller.
26