1. 1 Delivering Engineered Solutions UWC system warnings for SSI areas Run SLIDE SHOW. After this slide, the presentation advances automatically; manually advancing will bypass the animations.

2. Track AA Track AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 2 LOC UWC Delivering Engineered Solutions Single line

3. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 3 LOC UWC Delivering Engineered Solutions Connection 1/6 LOC

4. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 4 LOC UWC Delivering Engineered Solutions LOCATION CASE Data Link test points Connection 2/6

5. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 5 LOC UWC Delivering Engineered Solutions LOCATION CASE Data Link test points Warning system The UWC warning system decodes telegrams from the SSI Data Link, to see when track circuits are occupied. Connection 3/6

6. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 6 LOC UWC Delivering Engineered Solutions Connection 4/6

7. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 7 LOC UWC Delivering Engineered Solutions Connection 5/6 Red STOP Green Clear IF NO LIGHT – PHONE CROSSING OPERATOR

8. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 8 LOC UWC Delivering Engineered Solutions Connection 6/6 The warning light for the crossing user is controlled by the system. Red STOP Green Clear IF NO LIGHT – PHONE CROSSING OPERATOR

9. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 9 LOC UWC Delivering Engineered Solutions The system will light the red warning lamp when any of track sections AB to AD are occupied. Single line description

10. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 10 LOC UWC Delivering Engineered Solutions Track itemStateIndication Single line animation Track ABOccupiedClear OccupiedTrack ACClear Track ADOccupiedClear OccupiedTrack AE

11. Track AATrack AB Track ACTrack AD Track AE SSI Data Link Case 1: Single line 11 LOC UWC Delivering Engineered Solutions Single line end

12. Track AA Track AB Track AC SSI Data Link Case 2: Single line with following train 12 LOC Track AD Track AE UWC Delivering Engineered Solutions If a second train occupies the approach track circuits, the system will not cancel its warning. Single line 2 train description

13. Track AATrack AB Track AC SSI Data Link Case 2: Single line with following train 13 LOC Track AD Track AE UWC Delivering Engineered Solutions Clear Track itemStateIndication Single line 2 train animation Track ABOccupied Track AC Track ADOccupied ClearOccupiedTrack AE

14. Track AATrack AB Track AC SSI Data Link Case 2: Single line with following train 14 LOC Track AD Track AE UWC Delivering Engineered Solutions Single line 2 train end

15. Track AA Track AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 15 LOC Track AE UWC Delivering Engineered Solutions The system can also see points detection from the SSI telegrams. If the points are reverse, no warning will be given of a train approaching the junction. Diverging jct description

16. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 16 LOC Track AE UWC Delivering Engineered Solutions Track itemStateIndication Diverging jct reverse Track ABClear Track ACClear Track ADClear Track AEClear Detected ReversePoints 1001

17. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 17 LOC Track AE UWC Delivering Engineered Solutions Track itemStateIndication Diverging jct rev-norm Track ABClear Track ACClear Track ADClear Track AEClear Out of correspondencePoints 1001

18. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 18 LOC Track AE UWC Delivering Engineered Solutions Track itemStateIndication Diverging jct (normal) animation Track ABOccupiedClear OccupiedTrack ACClear OccupiedTrack ADClear OccupiedTrack AEClear Detected NormalPoints 1001

19. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 19 LOC Track AE UWC Delivering Engineered Solutions Track itemStateIndication Diverging jct norm-rev Track ABClear Track ACClear Track ADClear Track AEClear Out of correspondencePoints 1001

20. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 20 LOC Track AE UWC Delivering Engineered Solutions Track itemStateIndication Diverging jct (reverse) animation Track ABOccupiedClear OccupiedTrack ACClear Track ADClear Track AEClear Detected ReversePoints 1001

21. Track AATrack AB Track AC Track AD Points 1001 SSI Data Link Case 3: Diverging junction 21 LOC Track AE UWC Delivering Engineered Solutions Diverging jct end

22. Track AA Track ABTrack ACTrack ADTrack AE SSI Data Link Case 5: Station PLATFORM Signal 101 22 LOC UWC Delivering Engineered Solutions The system can also see a signal’s state and proving from the SSI telegrams. If signal 101 is red, no warning will be generated unless AC becomes occupied (due to a SPAD). Station description

23. Track AA Track ABTrack ACTrack ADTrack AE SSI Data Link Case 5: Station PLATFORM Signal 101 23 LOC UWC Delivering Engineered Solutions Track itemStateLit lamp Station animation Track ABOccupiedClear █ YellowSignal 101█ Red OccupiedTrack ACClear OccupiedTrack ADClear OccupiedTrack AEClear

24. Track AA Track ABTrack ACTrack ADTrack AE SSI Data Link Case 5: Station PLATFORM Signal 101 24 LOC UWC Delivering Engineered Solutions Station end

25. 25 Delivering Engineered Solutions The End End of presentation