Kontron COMe-cSP2 - Manual (Page 33)

COMe-cSP2 / COMe-cSP2 Connector
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4.2.6 Onboard Connectors
Connector J1 - CPLD Debug
The onboard 12pin connector J1 allows accessing the CPLD.
Warning: The debug port is for internal use only. Do not connect any devices.
Connector J2 - SO-DIMM DDR2 Socket
Standard 200pin DDR2 SO-DIMM socket for 400MHz / 533MHz memory modules up to 2GB.
Connector J3 - US15W JTAG Connector
This is the US15W SCH debug connector
Warning: The debug port is for internal use only. Do not connect any devices.
Connector J4 - SDIO/MMC Socket
The onboard SDIO Socket J4 provides the SDIO port #0 from US15W SCH. See SD Card description for more details.
Connector J5 - FAN
3-pin FAN connector for a 5V fan. This can be configured in setup. See fan connector description for more details.