Kontron KTT30-mITX - Manual (Page 35)

KTD-N0857-A Page 32 Slot Connectors
KTT30/mITX Users Guide
9.5 Modem Card Connector
The second host port (named USB2) can also be configured as a miniPCI Express ® USB modem interface.
With an USB 2.0 switch the host port supports either the standard connector J24 or the USB modem
interface on connector J27. One I/O line (NVIDIA
® label: L.05) enables the switching between the
interfaces:
Standard connector J24 low level
Modem card connector J27 high level
The modem card interface is available through the connector J27 (52 pins).
Header Pin Signal Description Type Pin Signal Description Type
1 WAKE# Wake event I-3.3 2 VCC3 1) Power +3.3V PWR
3 N.C. Not connected NC 4 GND Ground PWR
5 N.C. Not connected NC 6 VCC1 1) Power +1.5V PWR
7 N.C. Not connected NC 8 USIM_VCC USIM power PWR
9 GND Ground PWR 10 USIM_IO USIM data IO
11 N.C. Not connected NC 12 USIM_CLK USIM clock O
13 N.C. Not connected NC 14 USIM_RST USIM reset O
15 GND Ground PWR 16 USIM_VPP USIM progr. volt. PWR
17 USIM_USB- USIM USB (neg.) DSIO 18 GND Ground PWR
19 USIM_USB+ USIM USB (pos.) DSIO 20 W_DISABLE# Wireless disable O-3.3
21 GND Ground PWR 22 PE_RST# PCIe ® reset O-3.3
23 N.C. Not connected NC 24 VCC3 1) Power +3.3V PWR
25 N.C. Not connected NC 26 GND Ground PWR
27 GND Ground PWR 28 VCC1 1) Power +1.5V PWR
29 GND Ground PWR 30 I2C_CLK I2C TM clock O-3.3
31 N.C. Not connected NC 32 I2C_DATA I2C TM data IO-3.3
33 N.C. Not connected NC 34 GND Ground PWR
35 GND Ground PWR 36 USB- USB port (neg.) DSIO
37 GND Ground PWR 38 USB+ USB port (pos.) DSIO
39 VCC3 1) Power +3.3V PWR 40 GND Ground PWR
41 VCC3 1) Power +3.3V PWR 42 N.C. Not connected NC
43 GND Ground PWR 44 N.C. Not connected NC
45 MODEM_CLK Modem clock O 46 N.C. Not connected NC
47 MODEM_DIN Modem data in O 48 VCC1 1) Power +1.5V PWR
49 MODEM_DOUT Modem data out I 50 GND Ground PWR
51 MODEM_CS Modem chip sel. O 52 VCC3 1) Power +3.3V PWR
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