Com3 Connector (Cn12A); Usb 3.0 Double Deck Port (Cn13); Rj45 Connector (Cn14) - AXIOMTEK SCM180 Hardware User Manual

SCM180 & SCB180 Freescale i.MX8M ARM-based System-on-Module
3.5.12

COM3 Connector (CN12A)

These is standard 9-pin D-Sub connectors for interfacing to serial ports.
Pin Signal
1 N.C.
DTE_RXD2
2
DTE_RTS2
3
4 N.C.
5 GND
6 N.C.
7 DTE_TXD2
8 DTE_CTS2
9 N.C.
3.5.13

USB 3.0 Double Deck Port (CN13)

The motherboard comes with one stacked Universal Serial Bus (compliant with USB 3.0)
connector on the rear I/O for installing USB peripherals such as keyboard, mouse,
scanner, etc.
Pin Signal
1 USB_PWR
2 USB#1_D-
3 USB#1_D+
4 GND
5 SSRX1-
6 SSRX1+
7 GND
8 SSTX1-
9 SSTX1+
3.5.14

RJ45 Connector (CN14)

CN14 is the RJ-45 connector is for Ethernet. Just plug in one end of the cable and
connect the other end to a 1000/100/10-Base-T hub.
Pin Signal
1 MDI0+
2 MDI0-
3 MDI1+
4 MDI1-
5 MDI2+
6 MDI2-
7 MDI3+
8 MDI3-
A Active LED (Yellow)
B 100 LAN LED (Green)/1000 LAN LED (Orange)
SCB180 Baseboard
CN12A (COM3)
Pin Signal
10 USB_PWR
11 USB#2_D-
12 USB#2_D+
13 GND
14 SSRX2-
15 SSRX2+
16 GND
17 SSTX2-
18 SSTX2+
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