GIA 63/GIA 63W Installation Manual Page 4-17190-00303-05 Revision H4.5 Discrete I/OPin Name Connector Pin I/OP604 4, 5, 10,15, 16InDISCRETE INP605 3, 12, 16,50-51,60, 74InP604 7-9, 12-14, 17-21, 24InDISCRETE IN*P605 37-46,49, 52-55, 59,73InP605 47, 68-70 OutDISCRETE OUT*P606 67-75, 77 OutANNUNCIATE P605 71, 72 OutANNUNCIATE P604 6, 25-44 OutDISCRETE IN* pins:INACTIVE: 10 ≤ Vin ≤ 33VDC or Rin ≥ 100kΩACTIVE: Vin ≤ 1.9VDC with ≥ 75 uA sink current, or Rin ≤ 375ΩSink current is internally limited to 200 uA max for a grounded inputDISCRETE IN pins:INACTIVE: Vin ≤ 3.5VDCACTIVE: 10 ≤ Vin ≤ 33VDC with ≥ 75 uA source currentSource current is internally limited to 1.5 mA max for a 10-33VDC inputDISCRETE OUT pins:INACTIVE: Floating (can be pulled up to externally sourced Vout in the range 0 ≤ Vout ≤ 33VDC)Leakage current in the INACTIVE state is typically ≤ 10 uA to groundACTIVE: Vout ≤ 0.5VDC with ≤ 20 mA sink currentSink current must be externally limited to 20 mA maxANNUNCIATE pins:INACTIVE: Floating (can be pulled up to externally sourced Vout in the range 0 ≤ Vout ≤ 33VDC)Leakage current in the INACTIVE state is typically ≤ 250 uA to groundACTIVE: Vout ≤ 0.5VDC with ≤ 500 mA sink currentSink current must be externally limited to 500 mA max