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34
S
ECTION
11
Application
The intrusion alarm (when enabled) will sound the siren if a vehicle passes through a red indication. This
noti
fi
es the workers on site of a vehicular intrusion, granting them time to exit the roadway.
The intrusion alarm sensor becomes inactive when a “
fl
ash amber” phase is served. Once the unit
transitions to an ALL STOP, the intrusion sensor becomes active.
Should a vehicle intrude on a red signal while the gate arm is lowering, the gate arm will retract. This
retract feature can be enabled or disabled in the software.