GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF1 - Place a permanent demand for P1 (All modes).
XSF5 - Selects Special Maximum for SG5 in FØ (Special Purpose Timesetting No.9) (All modes).
XSF6 - Selects Special Maximum for SG6 in FØ (Special Purpose Timesetting No.10) (All modes).
GENERAL OPERATION
1 If in AØ clear demands for FØ.
2 If in DØ ignore demands for CØ.
3 Late start SG9 in EØ if going AØ ® EØ.
4 Late start SG10 in CØ if going AØ ® CØ.
5 Late start SG11 in FØ if going DØ ® F1Ø or F2Ø.
6 Use EØ yellow for CØ yellow if going CØ ® EØ, CØ ® FØ, or CØ ® AØ. 
7 Use AØ special all red for AØ red if going AØ ® BØ.
8 Use CØ special all red for CØ red if going CØ ® AØ.
SIGNAL GROUP OPERATION
Signal Group 5
1 SG5 is controlled by Special Movement Timesetting No.1 in FØ.
FØ All Red timesetting is substituted for Special Movement Timesetting No.1.
2 XSF5 is used to set the maximum extension green time for SG5 in FØ.
This time is stored in Special Purpose Timesetting No.9.
SG5 is forced off after this maximum extension green time.
3 SG5 operates green-yellow-red in F1Ø and F2Ø.
4 SG5 goes red with SG1 in AØ, and remains red through BØ, CØ, DØ, EØ and F3Ø.
5 SG5 closes down at the end of F1Ø or F2Ø green, remains red through AØ late start, then goes ‘blank’ at the start of AØ minimum green.
Signal Group 6
1 SG6 is controlled by Special Movement Timesetting No.2 in FØ.
FØ All Red timesetting is substituted for Special Movement Timesetting No.2.
2 XSF6 is used to set the maximum extension green time for SG6 in FØ.
This time is stored in Special Purpose Timesetting No.10.
SG6 is forced off after this maximum extension green time.
3 SG6 operates green-yellow-red in F1Ø and F3Ø.
4 SG6 goes red with SG2 in AØ, and remains red through BØ, CØ, DØ, EØ and F2Ø.
5 SG6 closes down at the end of F1Ø or F3Ø green, remains red through AØ late start, then goes ‘blank’ at the start of AØ minimum green.
Signal Group 8
1 SG8 operates green-yellow-red in EØ.
2 SG8 goes red with SG4 in DØ or SG8 closes down at the end of EØ green, then goes ‘blank’ at the start of DØ minimum green and remains red through FØ, AØ, BØ, CØ and DØ late start.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls BØ, ‘pedestrian only’ phase.
P1 can introduce at the start of BØ.
3 seconds of solid ‘DON’T WALK’ is provided after P1 clearance.
When set, XSF1 places a permanent demand for P1 (All Modes).
DETECTOR OPERATION
General
Clear vehicle demands during associated phase green and yellow.
Detector 2
Clear demands for FØ from detector 2 during SG5 green and yellow.
Detector 4
Clear demands for FØ from detector 4 during SG6 green and yellow.
Detector 9
Clear demands for DØ from detector 9 during SG4 green in DØ and EØ.