
2 94193292010E
©
Copyright 2017 Axiomtek Co., Ltd.
Version A2 ec 2017
Printed in Taiwan
Connectors
Connector Description
High Speed Board to Board Connector 2
Low Speed IO Connector (CN3)
This is a 39-pin connector which is compliant with AMP 4-1734507-0 for
low speed signal interface consisting of a set of HD Audio, four USB 2.0
ports, power/reset button and power/HDD LED indicator signals.
2 38
1 39
Pin
Signal Pin
Signal
1 MIC 2 LINE_OUT_L
3 LINE_IN_L 4 LINE_OUT_R
5 LINE_IN_R 6 AUDIO_GND
7 AUDIO_GND 8 GND
9 GND 10 GND
11 USB_VCC
(+5V level ) 12 USB_VCC
(+5V level )
13 USB_Data0- 14 USB_Data1-
15 USB_Data0+ 16 USB_Data1+
17 GND 18 GND
19 GND 20 GND
21 USB_VCC
(+5V level ) 22 USB_VCC
(+5V level )
23 USB_Data2- 24 USB_Data3-
25 USB_Data2+ 26 USB_Data3+
27 GND 28 GND
29 GND 30 GND
31 +V5S 32 SIO_PSIN#
33 HW_RESET# 34 GND
35 +V5S 36 NA
37 HDD_LED 38 NA
39 GND
94193292010E 3
©
Copyright 2017 Axiomtek Co., Ltd.
Version A2 ec 2017
Printed in Taiwan
COM1 and COM2 Connector (CN4)
This is a 2x10-pin connector which is compliant with AMP 2-1734507-0 for
COM1 and COM2 serial port interface. Only COM1 port has +5V level
power capability on DCD and +12V level on RI by setting JP1. The COM1
supports RS-232/422/485 mode while COM2 supports only RS-232. Pin
assignments of RS-232/422/485 are listed in table below.
2 20
1 19
Pin
RS-232
RS-422 RS-485
11 DCD1 TX- Data-
18 RI1 No use No use