Pins   eMac ON   eMac OFF
----   -------   --------
01 02  +20.3V    +12V
03 04  +12V      +12V
05 06  GND       GND
07     +19V      +11.5V
08..12 GND       GND
13     +0.3V     +8V 
14     +0.3V     +0.3V
15     +5V       +5V
16     GND       GND