DSP-10 User Manual
Page 15 of 26
DSP10_MAN_C
Extension Interval
A vehicle was detected but the detection zone is now empty and an
extension interval is being timed. The extension interval can be
programmed for no extension, 2 seconds, 5 seconds, or 10 seconds.
When the detection area becomes vacant, the extension timer will start
and the A output will continue to be activated. During this interval, the
LED will blink quickly at 50 milliseconds on and 50 milliseconds off. If
another vehicle enters the detection area during this interval, the
extension time is cancelled and the LED will return to the solid state.
Note: There is no delay interval for any newly arriving vehicle if a vehicle
is already in the detection area or the detector is in the extension
interval.
Detect
The LED will be on solid when a vehicle is being detected and the delay
interval (if activated) has finished timing.
Figure 8: Detect LED States
