Optiquest iRIS 220 Appendix D - Legacy PCB Rev 1.1 Details, 13.1 I/O Connector, Debounce Links

67 - iRIS 220 / iRIS 320, V1.19 User Guide

13 Appendix D – Legacy PCB (Rev 1.1) Details

13.1 I/O Connector

All I/O and power supply terminations on the V1.1 PCB are via 2.5mm (0.1”) screw terminals provided on a 12-way pluggable connector. This connector is positioned on the right hand side of the iRIS 320 circuit board, directly above the white battery connector. On the iRIS 220, the connector protrudes through the top of the case.

The function of each I/O termination is shown in the diagram below.

TOP
	AI2	Analog Input #2
	AI1	Analog Input #1
	AGND	Analog Common Ground
	DI2	Digital Input #2
	DI1	Digital Input #1
	DO2	Digital Output #2
	DO1	Digital Output #1
	DGND	Digital Common Ground
	12V+	12Vdc Internal/External Battery Supply +
	12V - 12Vdc Internal/External Battery Supply – (GND)
	VIN+	15-30Vdc External Power Supply (Charger Input) +
	GND (-)	0Vdc External Power Supply (Charger Input) -

BOTTOM

NOTE: The terminal marked 12V- is bonded to the other GND terminals and on the Revision 1.2 PCB is marked as such.

13.2 Debounce Links

The picture below shows the position of the debounce links on the Revision 1.1 PCB.

Figure 15 – V1.1 PCB Debounce Links