4 point 10-28 VDC (sink/source) Inputs Snap-in I/O; 4 point 10-28 VDC (sink) outputs, 0.5 Amp per point, 1.4 Amp max for 4 outputs.

4 point 10-28 VDC (Sink/Source) Inputs Snap-in I/O; 4 point 10-28 VDC (source) outputs, 0.5 Amp per point, 1 Amp max for 4 DC Outputs.

8 point 10-28 VDC Inputs (sink/source) Snap-in I/O

8 point 10-28 VDC (sink) Outputs Snap-in I/O, 0.5 Amp per point, 1.4 Amp max per module.

8 point 10-28 VDC (source) Outputs Snap-in I/O, 0.5 Amp per point, 1.0 Amp per module.

4 point 10-28 VDC (sink/source) Inputs Screw-down I/O; 4 point 10-28 VDC (sink) outputs, 0.5 Amp per point, 1.4 Amp max for 4 outputs.

4 point 10-28 VDC (Sink/Source) Inputs Screw-down I/O; 4 point 10-28 VDC (source) outputs, 0.5 Amp per point, 1 Amp max for 4 DC Outputs.

8 point 10-28 VDC Inputs (sink/source) Screw-down I/O

8 point 10-28 VDC (sink) Outputs Screw-down I/O, 0.5 Amp per point, 1.4 Amp max per module.

8 point 10-28 VDC (source) Outputs Screw-down I/O, 0.5 Amp per point, 1.0 Amp per module.

4 point 10-28 VDC (sink/source) Inputs Snap-in I/O, OFF to ON response=3 ms ( typ); 4 point High Speed 10-28 VDC (sink/source) Inputs, OFF to ON response=0.3 ms ( typ); Fast input # 8 initiates fast interrupt of 20 ?s.

8 point High Speed 10-28 VDC Inputs (sink/source) Snap-in I/O, OFF to ON response=0.3 ms (typ).

4 point 10-28 VDC (sink/source) Inputs Screw-down I/O, OFF to ON response=3 ms ( typ); 4 point High Speed 10-28 VDC (sink/source) Inputs, OFF to ON response=0.3 ms ( typ); Fast input # 8 initiates fast interrupt of 20 ?s.

8 point High Speed 10-28 VDC Inputs (sink/source) Screw-down I/O, OFF to ON response=0.3 ms (typ).

4 point 10-28 VDC (Sink/Source) Inputs Screw-down I/O; 4 point 10-28 VDC (source) outputs, HIGH-Current version module with 4 Amps peak per module, 2 Amp peak for each output.  All short circuit proof.