
The table below shows the required locking positions.
A lever number or name followed by 'N' means the lever must be in normal position.
Followed by 'R' means the lever must be in reversed position.
Lever no. followed by * indicate locking for flank protection or overlap protection. Note that the position of these levers may sometimes be either normal or reverse, but the lever is locked in that position when the signal is cleared.
Signals in opposite direction giving direct access to the route as indicated must always be at danger and are not explicitly listed in the table below. Signals in opposite direction which do not give direct access but must be at danger for overlap protection are included, and are indicated by *.

Column "calling on" indicates if the signal can be cleared on occupied track. 
When signal requires 'caution', the signal must be kept at danger until the speed of the train is sufficiently reduced (approx. 10 mph).

------------------------------------------------------------------
Sign|  Route to | Endsignal | Req levers |Call On | Notes
------------------------------------------------------------------
    |           |           |            |        |  
                         "A" Box
    |           |           |            |        |  
 01 |  Dn Main  |     -     |  02R,05R   |        | Dn Main Distant
    |           |           |            |        |  to Dn Through
    |           |           |            |        |  
 02 |  Dn Main  | 03/04/05  |     -      |        | Caution if
    |           |           |            |        |  03, 04 and 05
    |           |           |            |        |  normal
    |           |           |            |        |  
 03 |  Dn Bay   |     -     |33N,38N,39R,|        |  
    |           |           |40R,41N,42R |        |  
    |           |           |            |        |  
 04 |  Dn Local |137/176/188|32N,33N,38N,|        |  
    |           |           |39R,40R,41N,|        |  
    |           |           |    42N     |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
 05 | Dn Through|173/180/183|31N,32N,39R,|        |  
    |           |           |    41R     |        |  
    |           |           |            |        |  
 06 | Dn Branch |     -     |  07R,10R   |        | Dn Branch
    |           |           |            |        |  Distant
    |           |           |            |        |  
 07 | Dn Branch | 08/09/10  |14N,15N,66N |        | Caution if 
    |           |           |   also     |        |  08, 09 and 10
    |           |           | 22N*,26N*, |        |  normal
    |           |           | 34N*,61N*, |        |
    |           |           | 63N*,68N*, |        |  
    |           |           |    79N*    |        |  
    |           |           |            |        |  
 08 |  Dn Bay   |     -     |22N,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33R,34N   |        |  
    |           |           |            |        |  
 09 |  Dn Local |137/176/188|22N,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33N,34N   |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
 10 | Dn Through|173/180/183|22N,26N,27R,|        |  
    |           |           |28R,31R,34N |        |  
    |           |           |            |        |  
 11 |  Dn Main  |     -     |  02R,04R   |        | Dn Main Distant
    |           |           |            |        |  to Dn Local
    |           |           |            |        |  
 13 |Dn BrSd W2 |     -     |  14R,15R   |        | See note
    |           |           |            |        |  
    | Dn Branch | 08/09/10  |  14R,15N   |        |  
    |           |           |            |        |  
    | Up Branch |    18     |    14N     |        |  
    |           |           |            |        |  
 16 | Up Branch |    74     |  14R,15N   |        |  
    |           |           |            |        |  
 16A| Up Branch |    74     |  14R,15R   |        | See note
    |           |           |            |        |  
 17 | Dn Local  |137/176/188|    24R     |        | See note
    |           |           |            |        |  
    | Dn Through|173/180/183|    23R     |        | See note
    |           |           |            |        |  
 18 | Up Branch |    51     |    19N     |        |  
    |           |           | also 34N*  |        |  
    |           |           |            |        |  
    | Up BrSd W |     -     |    19R     |        | See note
    |           |           |            |        |  
 20 | Up Branch |    74     |  14N,19R   |        | See note
    |           |           |            |        |  
 21 |  Dn Bay   |     -     |22R,26N,27R,|   Y    |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33R,34N   |        |  
    |           |           |            |        |  
    |  Dn Local |137/176/188|22R,26N,27R,|   Y    |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33N,34N   |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
    | Dn Through|173/180/183|22R,26N,27R,|   Y    |  
    |           |           |28R,31R,34N |        |  
    |           |           |            |        |  
 23 | Dn Through|173/180/183|26R,27R,28R,|        | Route indicator
    |           |           |31R,33N,34N,|        | See note
    |           |           |    75R     |        |  
    |           |           |            |        |  
 24 |  Dn Local |137/176/188|26R,27R,28R,|        | Route indicator
    |           |           |31N,32R,34N,|        | See note
    |           |           |    75R     |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
 29 |  Dn Bay   |     -     |27N,28R,30R,|   Y    |  
    |           |           |31R,32R,33R,|        |  
    |           |           |    48N     |        |  
    |           |           |            |        |  
    |  Dn Local |137/176/188|27N,28R,30R,|   Y    |  
    |           |           |31R,32R,33N,|        |  
    |           |           |    48N     |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
    | Dn Through|173/180/183|27N,28R,30R,|   Y    |  
    |           |           |31R,32N,48N |        |  
    |           |           |            |        |  
    |  Up Local |  161/163  |30R,48R,53N |   Y    |  
    |           |           |   also     |        |  
    |           |           |  47R,162R  |        |  
    |           |           |            |        |  
    |  Up Loop  |   151     |30R,48R,52R,|   Y    |  
    |           |           |    53R     |        |  
    |           |           |   also     |        |  
    |           |           |  73R,152R  |        |  
    |           |           |            |        |  
 36 |  Dn Bay   |     -     |33N,38R,40R,|   Y    |  
    |           |           |    42R     |        |  
    |           |           |            |        |  
    |  Dn Local |137/176/188|32N,33N,38R,|   Y    | Call on for 37
    |           |           |  40R,42N   |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
 37 |  Dn Local |137/176/188|32N,33N,38R,|        |  
    |           |           |  40R,42N   |        |  
    |           |           | also 45N   |        |  
    |           |           |            |        |  
 43 |Dn Main Sdg|     -     |33N,35R,38R,|        |  
    |           |           |    42R     |        |  
    |           |           |            |        |  
    |  Up Main  |    60     |27N,28R,31R,|        | Shunt moves only
    |           |           |32R,33R,35R,|        |  
    |           |           |    48N     |        |  
    |           |           |            |        |  
    |Marsh Sdg E|     -     |26R,27R,28R,|        |  
    |           |           |31N,32R,33R,|        |  
    |           |           |34R,35R,75R |        |  
    |           |           |            |        |  
    | Dn BrSd E |     -     |22R,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |33R,34N,35R |        |  
    |           |           |            |        |  
    | Up Branch |    16     |22N,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |33R,34N,35R |        |  
    |           |           | also 15N*  |        |  
    |           |           |            |        |  
 44 |Dn Main Sdg|     -     |32N,33N,38R,|        |  
    |           |           |    42N     |        |  
    |           |           |            |        |  
    |  Up Main  |    60     |27N,28R,31R,|        |
    |           |           |32R,33N,48N |        |  
    |           |           |            |        |  
    |Marsh Sdg E|     -     |26R,27R,28R,|        |  
    |           |           |31N,32R,33N,|        |  
    |           |           |  34R,75R   |        |  
    |           |           |            |        |  
    | Dn BrSd E |     -     |22R,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33N,34N   |        |  
    |           |           |            |        |  
    | Up Branch |    16     |22N,26N,27R,|        |  
    |           |           |28R,31N,32R,|        |  
    |           |           |  33N,34N   |        |  
    |           |           | also 15N*  |        |  
    |           |           |            |        |  
 46 |  Up Main  |    60     |27N,28R,31R,|        | 
    |           |           |  32N,48N   |        |  
    |           |           |            |        |  
    |Marsh Sdg E|     -     |26R,27R,28R,|        |  
    |           |           |31N,34R,75R |        |  
    |           |           |            |        |  
    | Dn BrSd E |     -     |22R,26N,27R,|        |  
    |           |           |28R,31N,34N |        |  
    |           |           |            |        |  
    | Up Branch |    16     |22N,26N,27R,|        |  
    |           |           |28R,31N,34N |        |  
    |           |           | also 15N*  |        |  
    |           |           |            |        |  
 50 |  Up Main  |    60     |27N,31N,48N |        | Shunt moves only
    |           |           |            |        |  
 51 |  Up Local |  161/163  |34N,48N,52N,|   Y    |  
    |           |           |    53N     |        |  
    |           |           |   also     |        |  
    |           |           |  47R,162R  |        |  
    |           |           |            |        |  
    |  Up Loop  |   151     |34N,52R,53N |   Y    |  
    |           |           |   also     |        |  
    |           |           |  73R,152R  |        |  
    |           |           |            |        |  
 54 |  Up Loop  |   151     |  52N,55R   |   Y    | See note
    |           |           |   also     |        |  
    |           |           |  73R,152R  |        |  
    |           |           |            |        |  
 57 | Up Through|    60     |48R,52R,53R,|        | Shunt moves only
    |           |           |    56R     |        |  
    |           |           | also 73N   |        |  
    |           |           |            |        |  
    | Up Branch |    74     |14N,19N,34N,|        | Shunt moves only
    |           |           |52R,53N,56R,|        |  
    |           |           |    62R     |        |  
    |           |           | also 73N   |        |  
    |           |           |            |        |  
    | Up BrSd E |     -     |52N,55R,56R |        | See note
    |           |           | also 73N   |        |  
    |           |           |            |        |  
 59 |  Up Main  | Hildenb   |    LC      |        | Medway IBS
    |           |           |            |        | Also controls 
    |           |           |            |        |  Distant
    |           |           |            |        | Distant slotted
    |           |           |            |        |  by 60
    |           |           |            |        |  
 60 |  Up Main  |    59     |     -      |        |  
    |           |           |            |        |  
 61 |  Up Main  |    60     |27N,28R,31R,|        | Main line trains
    |           |           |32R,33R,35R,|        |  only
    |           |           |    48N     |        |  
    |           |           |            |        |  
 63 |  Up Main  |    60     |27N,31N,48N |        | Main line trains
    |           |           |            |        |  only
    |           |           |            |        | Caution when 60N
    |           |           |            |        |  
 64 | Up Through|     -     |  60R,63R   |        | Up Main Distant
    |           |           |            |        | Slotted by 
    |           |           |            |        |  105 or 110
    |           |           |            |        |  
 65 | Up Through|     -     |    64R     |        | Up Main Outer
    |           |           |            |        |  Distant
    |           |           |            |        | Slotted by 107 
    |           |           |            |        |  
 68 |  Up Main  |    60     |48R,49R,53N |        | Main line train
    |           |           |  also 47N  |        |  only
    |           |           |            |        | Caution when 60N
    |           |           |            |        |  
 69 |Marsh Sdg E|     -     |34R,48N,49R,|        |  
    |           |           |52N,53N,62R,|        |  
    |           |           |    75R     |        |  
    |           |           |  also 47N  |        |  
    |           |           |            |        |  
 70 |  Dn Bay   |     -     |26R,27R,28R,|   Y    |  
    |           |           |31N,32R,33R,|        |  
    |           |           |  34N,75R   |        |  
    |           |           |            |        |  
    |  Up Local |  161/163  |34R,48N,52N,|   Y    |  
    |           |           |  53N,75R   |        |  
    |           |           |    also    |        |  
    |           |           |  47R,162R  |        |  
    |           |           |            |        |  
    |  Up Loop  |   151     |34R,52R,53N,|   Y    |  
    |           |           |    75R     |        |  
    |           |           |    also    |        |  
    |           |           |  73R,152R  |        |  
    |           |           |            |        |  
 71 |  Up Main  |    60     |48R,49R,53N |        | Shunt moves only
    |           |           |  also 47N  |        |  
    |           |           |            |        |  
    | Up Branch |    74     |14N,19N,34N,|        | Shunt moves only
    |           |           |48N,49R,52N,|        |  
    |           |           |  53N,62R   |        |  
    |           |           |  also 47N  |        |  
    |           |           |            |        |  
 72 | Up Branch | Penshurst |    LC      |        | Weir IBS
    |           |           |            |        | Also controls
    |           |           |            |        |  Distant
    |           |           |            |        | Distant slotted
    |           |           |            |        |  by 74
    |           |           |            |        |  
 74 | Up Branch |    72     |    67N     |        |
    |           |           |            |        |  
 76 | Up Branch |    74     |14N,19N,34N,|        | Main line trains
    |           |           |48N,49R,52N,|        |  only
    |           |           |  53N,62R   |        | Caution if 74N
    |           |           |  also 47N  |        |  
    |           |           |            |        |  
 77 | Up Local  |     -     |  74R,76R   |        | Up Branch 
    |           |           |            |        |  Distant
    |           |           |            |        | Slotted by
    |           |           |            |        |  104 or 109
    |           |           |            |        |  
 78 |Marsh Sdg E|     -     |34R,52R,53N,|        |  
    |           |           |56R,62R,75R |        |  
    |           |           |  also 73N  |        |  
    |           |           |            |        |  
 79 |  Up Main  |    60     |48R,52R,53R,|        | Main line trains
    |           |           |    56R     |        |  only
    |           |           |  also 73N  |        | Caution if 60N
    |           |           |            |        |  
 80 | Up Branch |    74     |14N,19N,34N,|        | Main line trains
    |           |           |52R,53N,56R,|        |  only
    |           |           |    62R     |        | Caution if 74N
    |           |           |  also 73N  |        |  
    |           |           |            |        |  
------------------------------------------------------------------
    |           |           |            |        |  
                         "B" Box
    |           |           |            |        |  
101 | Up Branch |     -     |    105R    |        | Up Branch
    |           |           |            |        |  Distant
    |           |           |            |        |  
103 |  Up Loop  |57/78/79/80| 139R,140N, |        |  
    |           |           | 144N,145N, |        |  
    |           |           | 146R,147R, |        |  
    |           |           | 149N,150N  |        |  
    |           |           |    also    |        |  
    |           |           | 152N,156N* |        |  
    |           |           |            |        |  
104 |  Up Local |68/69/71/76| 139R,140N, |        |  
    |           |           | 144N,145R, |        |  
    |           |           | 146R,147R, |        |  
    |           |           | 156N,160N  |        |  
    |           |           | also 162N  |        |  
    |           |           |            |        |  
105 | Up Through|   60/63   | 139R,140R, |        |  
    |           |           | 159R,160N, |        |  
    |           |           | 160N,164N  |        |  
    |           |           |            |        |  
106 |  Up Main  |     -     | 107R,110R  |        | Up Main Distant
    |           |           |            |        |  
107 |  Up Main  |108/109/110|    113N    |        | Caution if
    |           |    153    |    also    |        |  108N, 109N and
    |           |           | 117N*,153N |        |  110N
    |           |           |            |        |  
108 |  Up Loop  |57/78/79/80| 117N,118R, |        |  
    |           |           | 119R,126N, |        |  
    |           |           | 140N,142N, |        |  
    |           |           | 144R,145N, |        |  
    |           |           | 146R,147R, |        |  
    |           |           | 149N,150N  |        |  
    |           |           |    also    |        |  
    |           |           | 152N,156N* |        |  
    |           |           |            |        |  
109 |  Up Local |68/69/71/76| 117N,118N, |        | Preferred
    |           |           | 119R,129N, |        |  route 
    |           |           | 140N,142N, |        |  
    |           |           | 159R,160R  |        |  
    |           |           | also 162N  |        |  
    |           |           |            |        |  
    |  Up Local |68/69/71/76| 117N,118R, |        | Alternative
    |           |           | 119R,126N, |        |  route 
    |           |           | 140N,142N, |        |  
    |           |           | 144R,145R, |        |  
    |           |           | 146R,147R, |        |  
    |           |           | 156N,160N  |        |  
    |           |           | also 162N  |        |  
    |           |           |            |        |  
110 | Up Through|   60/63   | 117N,118N, |        |  
    |           |           | 119R,129N, |        |  
    |           |           | 140N,142N, |        |  
    |           |           | 158R,159R, |        |  
    |           |           | 160N,164N  |        |  
    |           |           |            |        |  
111 | Goods Yd E|     -     | 113R,114R  |        |  
    |           |           |            |        |  
112 |  Dn Main  |    128    | 113N,114N  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
    | Goods Yd E|     -     | 113N,114R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
115 |  Dn Main  |    182    | 113N,114R, |        |  
    |           |           |  B1N,N1N   |        |  
    |           |           |            |        |  
    | Up MnSd 2 |     -     | 113R,114R  |        |  
    |           |           |            |        |  
116 |  Up Main  |    158    | 117R,118N, |        |  
    |           |           | 119R,129N, |        |  
    |           |           | 140N,142N  |        |  
    |           |           |            |        |  
    |Up MnSd Rd |    127    |    117N    |        |  
    |           |           |            |        |  
120 | Up MnSd 2 |     -     | 117N,118N, |        |  
    |           |           | 122R,126N  |        |  
    |           |           |            |        |  
    |  Loco Yd  |     -     |    126R    |        |  
    |           |           |            |        |  
121 |  Dn Main  |    182    | 113N,114N, |        |  
    |           |           | 129R,130R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
125 | Up Branch |    144    | 126R,140N, |        |  
    |           |           | 142N,144R  |        |  
    |           |           |            |        |  
127 | Up Branch |    144    | 118N,122R, |        |  
    |           |           | 126N,140N, |        |  
    |           |           | 142N,144R  |        |  
    |           |           |            |        |  
128 | Dn Stat Sd|     -     | 129N,133R, |        |  
    |           |           | 133R,135R  |        |  
    |           |           |            |        |  
    |  Dn Local |    44     | 129N,131R, |   Y    | Preferred
    |           |           | 133R,135N  |        |  route 
    |           |           |    168N    |        |  
    |           |           |    also    |        |  
    |           |           |  45R,138R  |        |  
    |           |           |            |        |  
    |  Dn Local |    44     | 129N,131N, |   Y    | Alternative
    |           |           | 142N,143R  |        |  route 
    |           |           |    168R    |        |  
    |           |           |    also    |        |  
    |           |           |  45R,138R  |        |  
    |           |           |            |        |  
    | Up Through|   60/63   | 129N,131N, |        |  
    |           |           | 142N,143R, |        |  
    |           |           | 164R,168N  |        |  
    |           |           |            |        |  
    |  Up Main  |    158    | 129R,140N, |        |  
    |           |           |    142N    |        |  
    |           |           |            |        |  
132 | Dn Stat Sd|     -     | 131R,133R, |        |  
    |           |           | 134R,135R  |        |  
    |           |           |            |        |  
    |  Dn Local |    44     | 131N,133R, |   Y    |  
    |           |           | 134R,135N, |        |  
    |           |           |    168N    |        |  
    |           |           |    also    |        |  
    |           |           |  45R,138R  |        |  
    |           |           |            |        |  
136 | Goods Yd W|     -     | 131N,133R, |        |  
    |           |           | 134R,135R  |        |  
    |           |           |            |        |  
    |  Dn Main  |    182    | 113N,114N, |        |  
    |           |           | 129N,131R, |        |  
    |           |           | 133R,135R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
137 | Goods Yd W|     -     | 131N,133R, |        | Shunt moves only
    |           |           | 134R,135N, |        |  
    |           |           | 168N,169R  |        |  
    |           |           | also 138N  |        |  
    |           |           |            |        |  
    |  Dn Main  |    182    | 113N,114N, |        | Preferred
    |           |           | 129N,131R, |        |  route
    |           |           | 133R,135N, |        | Shunt moves only
    |           |           | 168N,169R  |        |  
    |           |           |    also    |        |  
    |           |           | 138N,181N  |        |  
    |           |           |            |        |  
    |  Dn Main  |    182    | 113N,114N, |        | Alternative
    |           |           | 129N,131N, |        |  route
    |           |           | 142N,143R, |        | Shunt moves only
    |           |           | 168R,169R  |        |  
    |           |           |    also    |        |  
    |           |           | 138N,181N  |        |  
    |           |           |            |        |  
    | Dn Branch |    172    | 142R,143R, |        | Shunt moves only
    |           |           | 168R,169R  |        |  
    |           |           | also 138N  |        |  
    |           |           |            |        |  
141 |  Dn Local |    44     | 142R,143R, |   Y    |  
    |           |           |    168R    |        |  
    |           |           |    also    |        |  
    |           |           |  45R,138R  |        |  
    |           |           |            |        |  
    | Up Through|   60/63   | 142R,143R, |        |  
    |           |           | 164R,168N  |        |  
    |           |           |            |        |  
147 |  Up Local |68/69/71/76| 145R,146R, |   Y    |  
    |           |           | 156N,160N  |        |  
    |           |           | also 162N  |        |  
    |           |           |            |        |  
    |  Up Loop  |57/78/79/80| 145N,146R, |   Y    |  
    |           |           | 149N,150N, |        |  
    |           |           |    also    |        |  
    |           |           | 152N,156N* |        |  
    |           |           |            |        |  
148 |  Up Loop  |57/78/79/80| 149R,150N, |   Y    |  
    |           |           |    156N    |        |  
    |           |           | also 152N  |        |  
    |           |           |            |        |  
151 |Up MnSd Rd |    120    | 140N,142N, |        |  
    |           |           | 144R,145N, |        |  
    |           |           | 149N,150N  |        |  
    |           |           | also 156N* |        |  
    |           |           |            |        |  
    | Up BrSd T |     -     | 149R,150N, |        |  
    |           |           |    156N    |        |  
    |           |           |            |        |  
    | Coal Sdg  |     -     | 150R,156N  |        |  
    |           |           |            |        |  
153 |  Up Main  |    158    | 117N,118N, |        |
    |           |           | 119R,129N, |        |  
    |           |           | 140N,142N  |        |  
    |           |           | also 107N* |        |  
    |           |           |            |        |  
    | Up Branch |    147    | 117N,118R, |        |
    |           |           | 119R,126N, |        |  
    |           |           | 140N,142N, |        |  
    |           |           |    144R    |        |  
    |           |           | also 107N* |        |  
    |           |           |            |        |  
155 |  Up Local |68/69/71/76| 149N,156R, |   Y    |  
    |           |           |    160N    |        |  
    |           |           |    also    |        |  
    |           |           |147N*,151N*,|        |  
    |           |           |    162N    |        |  
    |           |           |            |        |  
    |  Up Loop  |57/78/79/80| 150N,156N  |   Y    |  
    |           |           | also 152N  |        |  
    |           |           |            |        |  
158 | Up Through|   60/63   | 159R,160N, |        |  
    |           |           |    164N    |        |  
    |           |           |            |        |  
    |  Up Local |68/69/71/76| 159R,160R  |   Y    |  
    |           |           | also 162N  |        |  
    |           |           |            |        |  
161 |  Up Main  |    121    | 140N,142N, |        | Shunt moves only
    |           |           | 154R,159R, |        |  
    |           |           |    160R    |        |  
    |           |           |            |        |  
    |Up MnSd Rd |    120    | 140N,142N, |        |  
    |           |           | 144R,145R, |        |  
    |           |           | 156N,159R, |        |  
    |           |           |    160N    |        |  
    |           |           |            |        |  
    | Coal Sdg  |     -     | 149N,156R, |        |  
    |           |           | 159R,160N  |        |  
    |           |           |    also    |        |  
    |           |           |147N*,151N* |        |  
    |           |           |            |        |  
163 |  Dn Main  |    182    | 113N,114N, |        | Main line trains
    |           |           | 121R,129R, |        |  only
    |           |           | 130R,140N, |        | Caution if 182N
    |           |           | 142N,154R, |        |  
    |           |           | 159R,160R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
166 |  Dn Main  |    182    | 113N,114N, |        | Shunt moves only
    |           |           | 129N,131N, |        |  
    |           |           | 142N,143R, |        |  
    |           |           | 164R,165R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
    | Dn Branch |    172    | 142R,143R, |        | Shunt moves only
    |           |           | 164R,165R  |        |  
    |           |           |            |        |  
167 | Dn Branch |    172    | 142R,143R, |        | Main line trains
    |           |           | 164R,165R  |        |  only
    |           |           |            |        | Caution if 172N
    |           |           |            |        |  
170 |  Dn Main  |    182    | 113N,114N, |        | Main line trains
    |           |           | 129N,131N, |        |  only
    |           |           | 142N,143R, |        | Caution if 182N
    |           |           | 164R,165R  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
171 |Tunbr Wells|     -     |    LC      |        | Southborough
    |           |           |            |        |  Viaduct IBS
    |           |           |            |        | Also controls
    |           |           |            |        |  Distant
    |           |           |            |        |  
172 | Dn Branch |    171    |            |        |  
    |           |           |            |        |  
173 | Dn Branch |    172    | 142R,143R, |        | Main line trains
    |           |           | 164N,168N  |        |  only
    |           |           |            |        | Caution if 172N
    |           |           |            |        |  
174 | Dn Branch |     -     | 172R,173R  |        | Dn Branch
    |           |           |            |        |  Distant
    |           |           |            |        |  
176 | Dn Branch |    172    | 142R,143R, |        | Main line trains
    |           |           | 168R,169R  |        |  Only
    |           |           | also 138N  |        | Caution if 172N
    |           |           |            |        |  
179 |Paddock Wd |     -     |    LC      |        | Tudeley IBS
    |           |           |            |        | Also controls
    |           |           |            |        |  Distant
    |           |           |            |        |  
180 |  Dn Main  |    182    | 113N,114N, |        | Shunt moves only
    |           |           | 129N,131N, |        |  
    |           |           | 142N,143R, |        |  
    |           |           | 164N,168N  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
    | Dn Branch |    172    | 142R,143R, |        | Shunt moves only
    |           |           | 164N,168N  |        |  
    |           |           |            |        |  
182 |  Dn Main  |    179    |            |        |  
    |           |           |            |        |  
183 |  Dn Main  |    182    | 113N,114N, |        | Main line trains
    |           |           | 129N,131N, |        |  only
    |           |           | 142N,143R, |        | Caution if 182N
    |           |           | 164N,168N  |        |  
    |           |           | also 181N  |        |  
    |           |           |            |        |  
184 |  Dn Main  |     -     | 182R,183R  |        | Down Main
    |           |           |            |        |  Distant 
    |           |           |            |        | Slotted by
    |           |           |            |        |  05 or 10
    |           |           |            |        |  
185 | Dn Through|     -     |174R or 184R|        | Outer Distant
    |           |           |            |        |  on Dn Main
    |           |           |            |        | Slotted by 02
    |           |           |            |        |  
186 | Dn Through|     -     |174R or 184R|        | Outer Distant
    |           |           |            |        |  on Dn Branch
    |           |           |            |        | Slotted by 07
    |           |           |            |        |  
188 |  Dn Main  |    182    | 113N,114N, |        | Main line trains
    |           |           | 129N,131R, |        |  only
    |           |           | 133R,135N, |        | Caution if 182N
    |           |           | 168N,169R  |        |  
    |           |           |    also    |        |  
    |           |           | 138N,181N  |        |  
    |           |           |            |        |  
    |           |           |            |        |  
------------------------------------------------------------------
------------------------------------------------------------------
    |           |           |            |        |  
                      Groundframes
       (for groundframe release settings, see table below)
    |           |           |            |        |  
------------------------------------------------------------------
    |           |           |            |        |  
                    Marshalling Sidings West
    |           |           |            |        |  
 M6 |Marsh Sd W |     -     |M2N,M3R,M5R,|        |  
    |           |           |    M8N     |        |  
    |           |           |            |        |  
    |Dn BrSd W1 |     -     |M2R,M3R,M5R,|        |  
    |           |           |    M8N     |        |  
    |           |           |            |        |  
 M9 | Up Branch |    72     |M2R,M3R,M5R,|        |  
    |           |           |    M8R     |        |  
    |           |           |            |        |  
 M11| Up Branch |    72     |M2N,M3R,M5R,|        |  
    |           |           |    M8R     |        |  
    |           |           |            |        |  
------------------------------------------------------------------
    |           |           |            |        |  
                        Ballast Siding
    |           |           |            |        |  
BSN |Ballast Sd |     -     |    B1R     |        |  
    |           |           |            |        |  
    |  Dn Main  |    112    |    B1N     |        |  
    |           |           |            |        |  
BSX |  Dn Main  |    182    |    B1R     |        |  
    |           |           |            |        |  
------------------------------------------------------------------
    |           |           |            |        |  
                         New Siding      |        |  
    |           |           |            |        |  
NSN |   New Sd  |     -     |    N1R     |        |  
    |           |           |            |        |  
    |  Dn Main  |    BSN    |    N1N     |        |  
    |           |           |            |        |  
NSX |  Dn Main  |    182    |    N1R     |        |  
    |           |           |            |        |  
------------------------------------------------------------------


Notes :

Signal 13 routed to Dn Branch Sidings W2:
Signal 16A:
no route maybe set from signals 43, 44 and 46 to Dn Branch (16).

Signals 17, 23, 24, 70 :
signals 23 and 24 are route indicators, signal 17 is actual signal.
Either 23 or 24 must be set before 17 can be cleared.
Route indicators are slotted by 17.
Route indicators are not used when route is set for signal 70.

Signals 18, 20, 54, 57 :
when routed to Up Branch Sidings, only one route into or out of
sidings may be cleared at any one time.

Groundframe release settings.
-----------------------------

Table below show groundframe release settings.
For groundframe signal and shunt location requirements,
 see table above.

----------------------------------------
 groundframe lever   |    requires
----------------------------------------
                     |
      Marshalling Sidings West
             Switch levers
                     |
       M3            |       M4R,M5N
       M8            |       M7R,M5N        
                     |         
             Release levers
                     |                  
       M4            |       66R        
       M7            |       67R        
                     |                  
       66            |       07N        
       67            |       72N        
                     |                  
----------------------------------------
                     |                  
            Ballast Siding
             Switch levers
                     |                  
       B1            |       B2R        
                     |                  
             Release levers
                     |                  
       B2            |      181R        
                     |                  
      181            | No route set to  
                     |  182 from :      
                     |   121            
                     |   136            
                     |   137            
                     |   166            
                     |   170            
                     |   180            
                     |   183            
                     |   188            
                     |                  
                     | No route set from
                     |   112            
                     |                  
----------------------------------------
                     |                  
              New Siding  
             Switch levers
                     |                  
       N1            |       N2R        
                     |                  
             Release levers
                     |                  
       N2            |      181R        
                     |                  
      181            | see above        
                     |                  
----------------------------------------


Asking levers
-------------

Asking levers control wrong-direction movements through
 platform lines.
There are two asking levers per platform line, one per box.

Asking lever for box which controls entry signals to platform
 will lock all entry signals to that platform if reversed.
Asking lever for box which controls exit signals from platform
 will lock exit signals from that platform if reversed.
Both asking levers must be reversed to release entry signals
 to that platform in wrong direction.
Exit signals from platforms in wrong direction do not have
 additional locking.

--------------------------------------------------------------------
 asking levers |  entry lever locks   | exit lever | both levers rev
  entry | exit |  routes to plf from  |    locks   | will release
        |      |                      |            | route to plf
        |      |                      |            |      from
--------------------------------------------------------------------
                       Down Local                          
        |      |                      |            |       
   45   | 138  |  04                  |    137     |       128
        |      |  09                  |    176     |       132
        |      |  17 (route ind 24)   |    188     |       141
        |      |  21                  |            |       
        |      |  29                  |            |       
        |      |  36                  |            |       
        |      |  37                  |            |       
        |      |                      |            |       
                        Up Local
        |      |                      |            |       
  162   |  47  | 104                  |     68     |        29
        |      | 109                  |     69     |        51
        |      | 147                  |     71     |        70
        |      | 155                  |     76     |       
        |      | 158                  |            |       
        |      |                      |            |       
        |      |         Up Loop      |            |       
        |      |                      |            |       
  152   |  73  | 103                  |     57     |        29
        |      | 108                  |     78     |        51
        |      | 147                  |     79     |        54
        |      | 148                  |     80     |        70
        |      | 155                  |            |       
        |      |                      |            |       
--------------------------------------------------------------------

Additional locking requirements.
--------------------------------

-----------------------
 position  | requires
-----------------------
           |           
        "A" Box
           |    
    15R    |   22N
    22R    |   15N
    27R    |   48N
    48R    |   27N
    52R    |   55N
    75R    |  26R or 34R
           |    
        "B" Box
           |    
   113R    |  117N,122N
   117R    |  113N
   118R    |  122N
   122R    |  113N
   114R    |  134N
   134R    |  114N
           |      
-----------------------

FPL.
----
Reverse position is FPL locked.

--------------------------
    FPL    | locks switch
--------------------------
           |    
        "A" Box
           |    
     28    |  27,32,33  
     30    |  31,48
     35    |  33
     39    |  41
     40    |  42
     49    |  48
     56    |  52,53
     62    |  34
           |    
        "B" Box
           |    
    119    |  117,118
    130    |  129
    133    |  131,135
    139    |  140
    143    |  142,164,168
    146    |  145
    154    |  140
    159    |  160
    165    |  164
    169    |  168
           |
  Marsh Sidings West GF
           |
     M5    |  M3,M8
           |
--------------------------
