Com1 And Com2 Wafer Connector (Cn17 And Cn18); Hdmi Connector (Cn19) - AXIOMTEK CAPA312 User Manual

CAPA312 3.5" Board
2.4.13

COM1 and COM2 Wafer Connector (CN17 and CN18)

The CN17 (optional) and CN18 are 2x5-pin connectors for COM1 and COM2 interface,
respectively. The pin assignments of RS-232/422/485 are listed in table below. If you
need COM1 and COM2 to support RS-422 or RS-485 communication mode, please
refer to BIOS setting in section 4.4.
Pin RS-232
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI
9 GND
10 No use
2.4.14

HDMI Connector (CN19)

The HDMI (High-Definition Multimedia Interface) is a compact digital interface which is
capable of transmitting high-definition video and high-resolution audio over a single
cable. Its interface is available through connector CN19.
Pin Signal
1 HDMI OUT_DATA2+
3 HDMI OUT_DATA2-
5 GND
7 HDMI OUT_DATA0+
9 HDMI OUT_DATA0-
11 GND
13 N.C.
15 HDMI OUT_SCL
17 GND
19 HDMI_HTPLG
18
RS-422 RS-485
TX- Data-
No use No use
TX+ Data+
No use No use
RX+ No use
No use No use
RX- No use
No use No use
No use No use
No use No use
Pin Signal
2 GND
4 HDMI OUT_DATA1+
6 HDMI OUT_DATA1-
8 GND
10 HDMI OUT_Clock+
12 HDMI OUT_Clock-
14 N.C.
16 HDMI OUT_SDA
18 +5V
Board and Pin Assignments