GENERAL NOTES
SUMMARY OF XSF FLAGS
(Communications Operation of XSF flags is required)
XSF5 - Selects Special Maximum for SG5 in DØ (Special Purpose Timesetting No.9) (All Modes).
XSF6 - Selects Special Maximum for SG6 & SG7 in DØ (Special Purpose Timesetting No.10) (All Modes).
GENERAL OPERATION
1 If in AØ clear demands for DØ.
SIGNAL GROUP OPERATION
Signal Group 5
1 SG5 red is controlled by Special Movement Timesetting No.1 in DØ.
DØ 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 DØ.
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 D1Ø and D2Ø.
4 SG5 goes red with SG1 in AØ, and remains red through BØ, CØ and D3Ø.
5 SG5 closes down at the end of D1Ø and D2Ø green, remains red through AØ late start, then goes blank at the start of AØ minimum green.
With P2 demanded.
6 If going BøàAø, CøàAø or D3øàAø with a demand for P2, hold SG5 red for the duration of Timer 1 (Special Purpose Timesetting No.11). Timer 1 starts timing at the start of P2 walk. When Timer 1 expires, SG5 red is switched off.
7 If going D1øàAø or D2øàAø with a demand for P2, SG5 goes red at the start of D1ø or D2ø all red period, and is held red for the duration of Timer 1 (Special Purpose Timesetting No.11). Timer 1 starts timing at the start of P2 walk. When Timer 1 expires, SG5 red is switched off.
8 Aø ECO is used to guarantee SG5 minimum blank period. Timer 3 (Special Purpose Timesetting No.13) starts timing at the start of SG5 blank period. When Timer 3 expires and Timer 4 is expired, expire Aø ECO.
Signal Group 6
1 SG6 is controlled by Special Movement Timesetting No.2 in DØ.
DØ 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 DØ.
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 D1Ø and D3Ø.
4 SG6 goes red with SG2 in AØ, and remains red through BØ, CØ and D2Ø.
5 SG6 closes down at the end of D1Ø and D3Ø green, remains red through AØ late start, then goes blank at the start of AØ minimum green.
With P1 demanded.
6 If going BøàAø, CøàAø or D2øàAø with a demand for P1, hold SG6 red for the duration of Timer 2 (Special Purpose Timesetting No.12). Timer 2 starts timing at the start of P1 walk. When Timer 2 expires, SG6 red is switched off.
7 If going D1øàAø or D3øàAø with a demand for P1, SG6 goes red at the start of D1ø or D3ø all red period, and is held red for the duration of Timer 2 (Special Purpose Timesetting No.12). Timer 2 starts timing at the start of P1 walk. When Timer 2 expires, SG6 red is switched off.
8 Aø ECO is used to guarantee SG6 minimum blank period. Timer 4 (Special Purpose Timesetting No.13) starts timing at the start of SG6 blank period. When Timer 4 expires and Timer 3 is expired, expire Aø ECO.
Signal Group 7
1 SG7 red is controlled by Special Movement Timesetting No.3 in DØ.
DØ All Red timesetting is substituted for Special Movement Timesetting No.3.
2 XSF6 is used to set the maximum extension green time for SG7 in DØ.
This time is stored in Special Purpose Timesetting No.10.
SG7 is forced off after this maximum extension green time.
3 SG7 operates green-yellow-red in D1Ø and D3Ø.
4 SG7 remains red through AØ and BØ.
5 SG7 remains red through CØ late start, then goes blank at the start of CØ minimum green and then goes red with SG3.
6 Late start SG7 in Dø.
When P3 is demanded.
7 If going AØCØ or BØCØ with a demand for P3, hold SG7 red for the duration of Timer 5 (Special Purpose Timesetting no. 14). Timer 5 starts timing at the start of P3 walk. When Timer 5 expires, SG7 red is switched off.
8 CØ ECO is used to guarantee SG7 minimum blank period. Timer 6 (Special Purpose Timesetting no. 15) starts timing at the start of SG7 blank period. When Timer 6 expires, expire CØ ECO.
PEDESTRIAN GROUP OPERATION
Pedestrian 1
P1 calls AØ. 
P1 calls CØ if the controller is resting in AØ.
P1 is hidden in DØ.
P1 can introduce at anytime in D2Ø and at the start of AØ and can overlap D2Ø ®AØ.
Pedestrian 2
P2 calls AØ. 
P2 calls CØ if the controller is resting in AØ.
P2 is hidden in DØ.
P2 can introduce at anytime in D3Ø and at the start of AØ and can overlap D3Ø ®
Pedestrian 3
P3 calls CØ.
P3 can introduce at the start of CØ.
Pedestrian 4
P4 calls BØ.
P4 can introduce at the start of BØ.
DETECTOR OPERATION
General
Clear vehicle demands during associated phase green and yellow.
Detector 7
Clear demands for CØ from detector 7 during SG3 and SG6 green and yellow.
Detector 10
Clear demands for BØ from detector 10 during SG4 and SG5 green and yellow.
OPERATION OF LED “GIVE WAY TO PEDESTRIAN” SIGN
Relay Output 1 drives a LED GWTP sign during P3 walk and clearance with SG7 blank.
Relay Output 1 is activated by P5 Wait State (PSC2000/ATSC4/QTC) or by Special Output 1 (Eclipse). Both P5 Wait State and Special Output 1 are set in the controller personality.
P5 Wait State can be monitored by keying in A.E03BD (PSC2000) or 7(Diag)>1(Mem)>3DB (Alpha 16/ATSC4/QTC) in the controller, or in SCATS Access, Show>Controller>Memory - Page 3, Offset BD(Hex). SO1-SO4 can be monitored by keying in 7(Diag)>1(Mem)>37A (Eclipse) into the controller or in SCATS Access, Show>Controller>Memory – Page 3, Offset 7A(Hex).