Power Supply Requirements, Pin # Description

TB1: 8 Pin Terminal - All Connections INTERNALLY Wired to 25DB Port

Pin #	Description

1	Step Clock Input Anode (+): A positive going edge on this isolated input advances the motor one
	increment. The size of the increment is dependent on the Microstep Select Inputs of Switch 1.
2	Step Clock Input Cathode (-)

3	Direction Anode (+): This isolated input is used to change the direction of the motor. Physical direction
	also depends on the connection of the motor windings.
4	Direction Cathode (-)

5	ON/OFF Anode (+): This isolated input is used to enable and disable the output section of the driver.
	When HIGH (open) the outputs are enabled. However, this input does not inhibit the step clock.
6	ON/OFF Cathode (-) - Internally ALL Drivers ON/OFF are tied to PIN14 of the 25DB Port.

7	+5 VDC: This non-isolated output can be used to supply up to 50mA of current to the isolated inputs.
	By doing this, isolation will be disabled.
8	0 VDC: +5 VDC return.

Table 2: Pin descriptions for terminal block TB1.

Power Supply Requirements

The DPA10002-01, DPG10003-01 and DPG10004-01 are all powered by an AC line voltage ranging from 90-265VAC. The following figure shows the various line voltages.

December 2004