
SB-X270 PC/104+ Single Board Computer
CompuLab LTD.
3.3. USB header & LCD voltage control (P15)
1x26, 100 mil header. USB pin assignment is directly compatible with standard
cables/connectors.
Pin Name
Wire
Color
Pin Name Wire
Color
01 VCC3.3 14 USB3-P Green
02 VSRC-LCD 15 GND Black
03 VCC5 16 SHIELD
04 GND 17 VCC-USB2 Red
05 VCC-USB1 Red 18 USB2-N White
06 USB1-N White 19 USB2-P Green
07 USB1-P Green 20 GND Black
08 GND Black 21 SHIELD
09 SHIELD 22 VCC-USB4 Red
10 VCC-USB3 23 USB4-N White
11 VCC-USB3-BUS 24 USB4-P Green
12 VCC-USB3-BUS Red 25 GND Black
13 USB3-N White 26 SHIELD
Notes
• An LCD power supply voltage selection jumper must be assembled in either 1-2 or 2-3
position for normal LCD functionality.
• A jumper must be assembled on pins 10-11 to provide power, if USB3 is used in host
mode. A jumper must be removed when USB3 is used in slave mode. Jumper only
selects power; the switching between host and slave modes is controlled by ARMmon
command.
• If card includes “F” (front panel) option, then USB1 is routed to the front panel rather
than to P15 header. To change this assignment, user must remove RN40 bypass and
solder it in RN38 location. In cards without “F” option, this is a default assignment.
• USB4 port is available only with CM-X270W module.
3.4. Audio, Touchscreen, Write-protect (P14)
P14 - 1x18 100 mil header
Pin Name Pin Name
1 TSMX 10 GND
2 TSMY 11 GND
3 TSPY 12 LOUT-L
4 TSPX 13 LIN-R
5 NAND-WP#* 14 GND
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