GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF1 - Allows auto introduction of P1 and P2.
XSF2 - For permanent demand of P3 and P4.
GENERAL OPERATION
REVn. – first scan after start-up demands CØ.
Clear phase demands during associated green and yellow times.
Use AØ Special Red for AØ Red if transitioning from AØ CØ.
Use CØ Yellow for BØ Yellow if transitioning from BØ AØ or BØ DØ.
Use AØ Yellow for DØ Yellow if transitioning from DØ BØ or DØ CØ.
If in AØ, clear demands for DØ. 
If in CØ, clear demands for BØ. 
SIGNAL GROUP OPERATION
Signal Group 5
SG5 is a 3-aspect (green / yellow / red) partially controlled right turn (conditional red) at all times.
SG5 operates green / yellow / red in DØ and is switched to “blank” during AØ as described below.
SG5 red will be switched to blank at the end of AØ Late Start period if Pedestrian 1 is not operating.
If Pedestrian 1 does operate in AØ, SG5 is held red in AØ while Timer 1 is timing. Timer 1 starts timing at the start of Pedestrian 1 Walk using Special Purpose Timesetting No. 9. When Timer 1 expires, SG5 red will be switched to blank.
The value of AØ Early Cut Off is used to guarantee a minimum blank period for SG5 in AØ. Timer 2 starts timing at the start of SG5’s blank period using Special Purpose Timesetting No. 10. When Timer 2 expires, AØ Early Cut Off will be expired.
** Do not alter one of AØ ECO or Special Purpose Timesetting No. 10 without regard for the other.
If going from AØ to BØ or CØ, SG5 will be switched to red at the start of SG2 Red (AØ Red) and will be held red throughout BØ and CØ.
Signal Group 6
SG6 is a 3-aspect (green / yellow / red) partially controlled right turn (conditional red) at all times.
SG6 operates green / yellow / red in BØ and is switched to “blank” during CØ as described below.
SG6 red will be switched to blank at the end of CØ Late Start period if Pedestrian 4 is not operating.
If Pedestrian 4 does operate in CØ, SG6 is held red in CØ while Timer 3 is timing. Timer 3 starts timing at the start of Pedestrian 4 Walk using Special Purpose Timesetting No. 11. When Timer 3 expires, SG6 red will be switched to blank.
The value of CØ Early Cut Off is used to guarantee a minimum blank period for SG6 in CØ. Timer 4 starts timing at the start of SG6’s blank period using Special Purpose Timesetting No. 12. When Timer 4 expires, CØ Early Cut Off will be expired.
** Do not alter one of CØ ECO or Special Purpose Timesetting No. 12 without regard for the other.
If going from CØ to AØ or DØ, SG6 will be switched to red at the start of SG3 Red (CØ Red) and will be held red throughout AØ and DØ.
Signal Group 7
Late start SG7 in BØ when transitioning from AØ BØ.
SG7 introduces at the start of BØ if transitioning from DØ BØ.
Signal Group 8
Late start SG8 in DØ when transitioning from CØ DØ.
SG8 introduces at the start of DØ if transitioning from BØ DØ.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 demands AØ.
P1 introduces at the start of AØ.
P1 auto introduces at the start of AØ if XSF1 is set.
P1 calls away to CØ when controller is resting in AØ.
Pedestrian 2
P2 demands AØ.
P2 can introduce at any time in DØ and at the start of AØ
P2 can overlap from DØ AØ.
P2 auto introduces at the start of SG2 if XSF1 is set.
P2 calls away to CØ when controller is resting in AØ.
Pedestrian 3
P3 demands CØ.
P3 can introduce at any time in BØ and at the start of CØ.
P3 can overlap from BØ CØ.
·         P3 is permanently demanded if XSF2 is set.
Pedestrian 4
P4 demands CØ.
P4 introduces at the start of CØ.
·         P4 is permanently demanded if XSF2 is set.
DETECTOR OPERATION
Detector 6
Detector 6 places immediate locking calls for AØ and places non-locking calls for DØ when its presence time expires.
Detector 8
Detector 8 places immediate locking calls for CØ and places non-locking calls for BØ when its presence time expires.
Detector 10
Detector 10 places immediate locking calls for CØ.
Clear CØ calls from Detector 10 in SG4 green and yellow and SG8 green and yellow.