Analog Programming (APG) and Isolated Analog Programming (ISOL) 
 
M370430-01  Rev B  4-21 
Table 4-4  AUX Output and ISOL Connector Pins and Functions J3 
Isolated Common (Isolated from Main Output and Communication. 
Return wire for +5 V, +15 V Auxiliary Voltage. 
Isolated Analog Voltage Programming Input 
Isolated Analog Current Programming Input 
Isolated Voltage Monitor. Scaled to the value of the Voltage Analog 
Programming Level. 
Isolated Common (Isolated from Main Output and Communication. 
Return wire for control signals, monitoring and programming. 
Isolated Current Resistive Programming 
Isolated Voltage Resistive Programming 
Isolated Current Monitor. Scaled to the value of the Voltage Analog 
Programming Level. 
Shutdown. Input to power supply to disable output. This input has 
user selectable negative logic operation via front panel or remote 
digital input/output. 
PS_GOOD. Power supply output enabled. 
Interlock. Dry contact type. Shorting pins J3.14 and J3.15 while the 
interlock functionality is enabled, will enable the output of the power 
supply. 
1. Important: Isolated monitor lines are only valid when Isolated analog programming modes are 
used for the respective voltage and current control. If local control, digital control or non-isolated 
APG is used, the non-isolated monitor lines should be used as the isolated monitor lines will not 
accurately reflect the output state of the power supply. 
2. Use unshielded cable up to 9.84 feet (3 m) length with high-density D-Sub type connector and a 
ferrite bead (Fair-Rite part number 0443164251). 
 
CAUTION: Equipment damage 
Do not drive or apply a voltage to pins J3.14 (Inter_Lock 1) or to pins J3.15 
(Inter_Lock 2).