15 Pin High Density 3 row Female Connector

Signal	Pin Number	Description
Output 1+	1	Optocoupler collector for output 1. For sourcing applications connect "+" to voltage. For sinking applications connect "+" to load.
Output 1-	6	Optocoupler emitter for output 1. For sourcing applications connect "-" to load. For sinking applications connect "-" to GND.
Output 2+	2	Optocoupler collector for output 2. For sourcing applications connect "+" to voltage. For sinking applications connect "+" to load.
Output 2-	7	Optocoupler emitter for output 2. For sourcing applications connect "-" to load. For sinking applications connect "-" to GND.
Output 3+	8	Optocoupler collector for output 3. For sourcing applications connect "+" to voltage. For sinking applications connect "+" to load.
Output 3-	12	Optocoupler emitter for output 3. For sourcing applications connect "-" to load. For sinking applications connect "-" to GND.
Input 1	5	Internal 4.7K pullup resistor to 5V
Input 2	11	Internal 4.7K pullup resistor to 5V
Input 3	13	Internal 4.7K pullup resistor to 5V
Analog Input	15	Application program resource
User 5V	3	Available as voltage reference for analog input. Current limited to 500 ma
GND	14	Same as power supply return
Disable	9	Drive is normally enabled. Apply voltage to disable drive.
RS485+	4	RS485 Half Duplex signal, sometimes referred to as "A".
RS485-	10	RS485 Half Duplex signal, sometimes referred to as "B".