Kontron KTAM3874-pITX - Manual (Page 21)

KTD-S0051-D Page 17 USB Interface
KTAM3874/pITX User's Guide
6 USB Interface
The USB interface comes with four USB ports which follow the EHCI specification (USB 2.0 compliant). A
USB hub device with four additional interfaces enlarge one port of the SoC. You can expand the amount of
USB connections by adding external hubs.
6.1 Standard Connector
Two USB ports are available through the standard USB connector J1700 (8 pins).
Header Pin Signal Description Type
1 VCC5 1) Power +5V PWR
2 USB0- USB port 0 (negative) DSIO-33
3 USB0+ USB port 0 (positive) DSIO-33
4 GND Ground PWR
5 VCC5 1) Power +5V PWR
6 USB1- USB port 1 (negative) DSIO-33
7 USB1+ USB port 1 (positive) DSIO-33
1
5
8 GND Ground PWR
6.2 Extension Connectors
The other USB ports are available through the extension connectors J1701 (4 pins) and J1702 (5 pins). If
you want a standard USB interface connector an adapter cable is required (4 pins, KAB-USB-2, part num-
ber 96054-0000-00-2).
Header Pin Signal Description Type
1 GND Ground PWR
2 USBn+ USB port n (positive) DSIO-33
3 USBn- USB port n (negative) DSIO-33
4 VCC5 1) Power +5V PWR
Important: The connector J1702 provides the USB Client (OTG) functionality. For normal usage you can also
apply the 4 pin cable KAB-USB-2.
Header Pin Signal Description Type
1 GND Ground PWR
2 USBn+ USB port n (positive) DSIO-33
3 USBn- USB port n (negative) DSIO-33
4 VCC5 1) Power +5V PWR
5 ID
Host / slave detection
(grounded or open)
I