The CI-6521 or CI-6521A Motion Sensor does not see any reflections, but the characteristic clicking sound can be heard when used with the CI-6500 interface.
Verify that the software is set for the correct type of motion sensor: digital-digital, analog-digital, or pure analog. Make sure that both plugs are connected to the interface.
Creation Date: 01/1/2000
Last Modified: 10/20/2003