GENERAL NOTES
SUMMARY OF XSF FLAGS
XSF1 - turn on Relay Output 1 to drive audio tactile units (Online).
XSF3 - Clearance zone detectors will not extend P1 walk. (Online)
XSF4 - Clearance zone detectors will not extend P1 clearance (Online).
XSF5 - Clearance zone detectors will not extend P2 walk. (Online)
XSF6 - Clearance zone detectors will not extend P2 clearance (Online).
XSF9 - queuing feature for detector 5 and 6 (Master).
XSF10 - queuing feature for detector 7 and 8 (Master).
SUMMARY OF MSS FLAGS
MSS11 – set for the duration of P1 demand.
MSS12 – set for the duration of P2 demand.
AUDIO TACTILE OPERATION
Relay Output 1 drives the audio tactile units for the pedestrian push buttons (detectors 1 - 4).
The audio tactile units are activated at 06:30 and remain on until 21:00.
Relay Output 1 is activated by P4 Wait State (ATSC4/PSC2000) or by Special Output 1 (Eclipse).  Both P4 Wait State (P8WS) and Special Output 1 (SO1) are set in the controller personality.
P4WS can be monitored by keying in A.E03BD (PSC2000) or 7 (Diag) > 1 (Mem) > 3BD (Alpha 16/ ATSC4/ QTC) into the controller, or in SCATS Access, Show > Controller > Memory - Page 3, Offset BD (Hex).
If OFF-LINE
- clear XSF1, then
- if time > 06:30, set P4WS/SO1.
- if time > 21:00, clear P4WS/SO1.
If ON-LINE
- clear conditions from hardware clock, then
- if XSF1 is set, set P4WS/SO1.