ADLINK cBP-3204[R] - Manual (Page 49)

Backplane
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Note: Pin #8, #9, and #18 are not standard ATX power definition.
u
CN5: Screw terminals for external AC input power lines
u
CN7: Screw terminals for GND (CN8, CN9, CN10 are not installed.)
u
CN13: Screw terminals for +5V (CN14 is not installed)
u CN15: Screw terminal for +12V
u CN16: Screw terminal for -12V is not installed.
u CN11, CN12: Screw terminals for +3.3V are not installed