Manual

KTD-S0051-D Page 45 Appendix C: Connector Overview
KTAM3874/pITX User's Guide
Pin
GPIO 1
J2104
External Power
J2100
Power Front Header
J2102
1 VCC3 GND RST_BTN+
2 VCC3 GND PWR_BTN+
3 SDA I2C_SDA RST_BTN-
4 SCL I2C_SCL PWR_BTN-
5 GPIO21 RSVD POWER_LED1-
6 GPIO22 RSVD POWER_LED2-
7 GPIO23 GND POWER_LED1+
8 GPIO24 GND POWER_LED2+
9 GPIO19 VDD GND
10 GPIO20 VCC5 GND
11 GPIO27 VDD
12 GPIO28 VCC5
13 GPIO29 VCC_IN
14 GPIO30 VCC5
15 GPIO31 VCC_IN
16 GPIO32 VCC5
17 RSVD VCC_IN
18 GPIO25 VCC5
19 GND RSVD
20 GND RSVD
Pin
USB Standard
J1700
USB Client
J1702
USB Extension
J1701
1 VCC5 GND GND
2 USB0- USBn+ USBn+
3 USB0+ USBn- USBn-
4 GND VCC5 VCC5
5 VCC5 ID
6 USB1-
7 USB1+
8 GND
Pin
LAN
J1600/J1601
S-ATA
®
J903
microSD
TM
Socket
J1400
1 TXD+ GND DATA2
2 TXD- TX+ CD / DATA3
3 RXD+ TX- CMD
4 GND GND VCC3
5 GND RX- CLK
6 RXD- RX+ GND
7 GND GND DATA0
8 GND DATA1