In addition to Active Current Sharing for paralleling up to 6 PFE modules, the PFE500F and PFE1000F models have a Remote On/Off control that is an opto-isolated input plus an auxiliary output from 10 to 14VDC at up to 20mA is included.  In addition, a “DC Good” open collector output that can sink up to 10mA when the output is good, is also included with these models.