
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
------------------------------------------------------------------
    |           |           |            |        |  
                  SOUTH BOX                          
    |           |           |            |        |  
  1 |  Up Fast  |     -     |  04R,17R   |        | Inner Distant
    |           |           |            |        | Slotted by 204
    |           |           |            |        |  
  2 |  Up Fast  |     -     |     01R    |        | Outer Distant
    |           |           |            |        | Slotted by 
    |           |           |            |        |  211 and 213
    |           |           |            |        |  
  4 |    Up     |    17     |24N,27N,35N |        | Caution if 17N
    |           |           |  Also 39N  |        |  
    |           |           |            |        |  
  5 |  Up Slow  |     -     |   08R,17R  |        | Inner Distant
    |           |           |            |        | Slotted by 194
    |           |           |            |        | Also Middle Distant
    |           |           |            |        | Slotted by 198
    |           |           |            |        |  
  6 |    Up     |    17     |24N,27R,35N |        | For shunt moves
    |           |           |  Also 40N  |        |  only
    |           |           |            |        | Caution required
    |           |           |            |        |  
  7 |  Up Slow  |     -     |     05R    |        | Outer Distant
    |           |           |            |        | Slotted by
    |           |           |            |        |  201 and 208
    |           |           |            |        |  
  8 |    Up     |    17     |24N,27R,35N |        | For trains 
    |           |           |  Also 40N  |        |  proceeding on
    |           |           |            |        |  main line only
    |           |           |            |        | Caution if 17N
    |           |           |            |        |  
  9 |Up Bay Appr|    15     |   20R,22R  |        |  
    |           |           |            |        |  
 10 |Up Bay Appr|    15     |   20N,22R  |        |  
    |           |           |            |        |  
 11 |Up Bay Appr|    15     |     22N    |        |  
    |           |           |            |        |  
 13 |    Up     |    17     |30N,31N,35R |        | Caution if 17N
    |           |           |            |        |  
 14 |    Up     |    17     |30N,31R,35R |        | Caution if 17N
    |           |           |            |        |  
 15 |    Up     |    17     |   24R,35R  |        |  
    |           |           |            |        |  
 17 |    Up     |Relly Mills|      -     |        | Requires LC
    |           |           |            |        |  
 41 | South Dock|     -     |20R,21N,22R,|   Y    |  
    |           |           |23N,24R,25N,|        |  
    |           |           |   34N,35N  |        |  
    |           |           |            |        |  
 42 |  Platfm 7 |     -     |20N,21N,22R,|   Y    |  
    |           |           |23N,24R,25N,|        |  
    |           |           |   34N,35N  |        |  
    |           |           |            |        |  
 43 |  Platfm 6 |     -     |22N,23N,24R,|   Y    |  
    |           |           |25N,34N,35N |        |  
    |           |           |            |        |  
 44 |  Up Slow  |111/126/127|23N,24N,26N,|   Y    |  
    |           |           |27R,34N,34N |        |  
    |           |           | Also 196R  |        |  
    |           |           |            |        |  
 45 |  Up Fast  |    167    |23N,24N,26N,|   Y    |  
    |           |           |27N,34N,35N,|        |  
    |           |           | 160N,165N  |        |  
    |           |           | Also 203R  |        | 
    |           |           |            |        |  
 46 |  Dn Fast  |    106    |30N,31N,34N,|   Y    |  
    |           |           |    35R     |        |  
    |           |           | Also 28N   |        |  
    |           |           |            |        |  
 47 |  Dn Slow  |  105/110  |30N,31R,34N,|   Y    |  
    |           |           |    35R     |        |  
    |           |           | Also 32N   |        |  
    |           |           |            |        |  
 501|  Dn Fast  |    106    |30N,31N,35N |   Y    | Signal 50(1)
    |           |           | Also 28N   |        | Shunt signal
    |           |           |            |        |  for 50(2)
    |           |           |            |        | Caution required
    |           |           |            |        |  
 502|  Dn Fast  |    106    |30N,31N,35N |        | Signal 50(2)
    |           |           |            |        |  
 511|  Dn Slow  |  105/110  |30N,31R,35N |   Y    | Signal 51(1)
    |           |           | Also 32N   |        | Shunt signal
    |           |           |            |        |  for 51(2)
    |           |           |            |        | Caution required
    |           |           |            |        |  
 512|  Dn Slow  |  105/110  |30N,31R,35N |        | Signal 51(2)
    |           |           |            |        |  
 52 |   Down    |   50/51   |            |        | Caution if
    |           |           |            |        |  502N and 512N
    |           |           |            |        |  
 54 |   Down    |     -     | 502R,52R   |        | Outer Distant
    |           |           |            |        |  Slotted by
    |           |           |            |        |  Relly Mills 
    |           |           |            |        |   Starter
    |           |           |            |        |  
----|-----------|-----------|------------|--------|---------------
    |           |           |            |        |  
                  NORTH BOX                          
    |           |           |            |        |  
 101|  Dn Fast  |     -     | 106R,107R  |        | Inner Distant
    |           |           |            |        |  Down to Dn Fast
    |           |           |            |        |  Slotted by 502
    |           |           |            |        | Also
    |           |           |            |        |  Middle Distant
    |           |           |            |        |  Slotted by 52
    |           |           |            |        |  
 102|  Dn Fast  |     -     | 106R,114R  |        | Inner Distant
    |           |           |            |        |  Down to Dn Slow
    |           |           |            |        |   via Dn Fast
    |           |           |            |        |  Slotted by 502
    |           |           |            |        | Also
    |           |           |            |        |  Middle Distant
    |           |           |            |        |  Slotted by 52
    |           |           |            |        |  
 103|   Down    |     -     |   101R     |        | Outer Distant
    |           |           | OR 102R    |        |  Slotted by 54
    |           |           |            |        |  and Relly Mills
    |           |           |            |        |   Starter
    |           |           |            |        |  
 104|  Dn Slow  |     -     | 110R,118R  |        | Inner Distant
    |           |           |    OR      |        |  via Dn Slow
    |           |           | 105R,107R  |        |  Slotted by 512
    |           |           |            |        | Also
    |           |           |            |        |  Middle Distant
    |           |           |            |        |  Slotted by 52
    |           |           |            |        |  
 105|  Dn Fast  |  107/114  | 149N,151R, |        | Caution if 107N
    |           |           |   169N     |        |  
    |           |           | Also 188N  |        |  
    |           |           |            |        |  
 106|  Dn Fast  |  107/114  | 151N,169N  |        | Caution if 107N
    |           |           | Also 192N  |        |  
    |           |           |            |        |  
 107|  Dn Fast  |    115    | 155N,171N, |        |  
    |           |           |   173N     |        |  
    |           |           |            |        |  
 108|  Dn Slow  |  113/118  | 138N,139R, |        |  
    |           |           | 141N,145R, |        |  
    |           |           |   146R     |        |  
    |           |           |   Also     |        |  
    |           |           | 140N,147N  |        |  
    |           |           |            |        |  
 109|  Dn Slow  |  113/118  | 144N,145R, |        |  
    |           |           |   146R     |        |  
    |           |           |  Also 147N |        |  
    |           |           |            |        |  
 110|  Dn Slow  |  113/118  | 145N,149N, |        | Caution if 118N
    |           |           |   151N     |        |  
    |           |           | Also 188N  |        |  
    |           |           |            |        |  
 111|  Up Slow  |  112/124  | 158N,160N  |        | Operates same arm
    |           |           | Also 165R  |        |  as signal 126
    |           |           |            |        |  
 112|  Up Fast  |    167    | 163N,165R  |        |  
    |           |           | Also 167R  |        |  
    |           |           |            |        |  
 113|  Dn Fast  |    115    | 153N,155R  |        |  
    |           |           |            |        |  
 114|  Dn Slow  |    128    | 171N,173R  |        |  
    |           |           |            |        |  
 115|  Dn Fast  |Newton Hall|            |        | Requires LC
    |           |           |            |        |  Crookhall IBS
    |           |           |            |        |  
 116|  Dn Fast  |     -     |   115R     |        | Crookhall IBS
    |           |           |            |        |  Distant
    |           |           |            |        |  
 118|  Dn Slow  |    128    | 153N,155N, |        |  
    |           |           |   173N     |        |  
    |           |           |            |        |  
 119| Engine Sdg|     -     | 139N,144N, |   Y    |  
    |           |           | 146N,147R  |        |  
    |           |           |            |        |  
 120| Platfm 1  |108/122/123|   137N     |        |  
    |           |           |            |        |  
 121| Platfm 1  |108/122/123|   137R     |        | 
    |           |           |            |        |  
 122| Turntb Sdg|     -     | 138N,139N, |        | Operates same arm 
    |           |           |   140R     |        |  as signal 123
    |           |           |            |        |  
 123| Engine Sdg|     -     | 138N,139R, |   Y    | Operates same arm 
    |           |           |   141N     |        |  as signal 122
    |           |           | Also 104N  |        |  
    |           |           |            |        |  
 124|Bank Eng Sd|     -     | 163R,165N, |   Y    |  
    |           |           |   166R     |        |  
    |           |           |            |        |  
 125|  Up Slow  |  112/124  |   162R     |        |  
    |           |           |            |        |  
 126|  Up Slow  |  112/124  | 158N,160N  |        | Operates same arm
    |           |           | Also 165N  |        |  as signal 111
    |           |           |            |        |  
 127|  Up Fast  |    167    | 158N,160R, |        |  
    |           |           |   165N     |        |  
    |           |           | Also 167R  |        |  
    |           |           |            |        |  
 128|  Dn Slow  |Newton Hall|            |        | Requires LC
    |           |           |            |        |  Crookhall IBS
    |           |           |            |        |  
 129|  Dn Slow  |     -     |   128R     |        | Crookhall IBS
    |           |           |            |        |  Distant
    |           |           |            |        |  
 167|  Dn Fast  |  107/114  | 168N,169R  |        |  
    |           |           |            |        |  
 177| Platfm 5  |     -     | 161N,162R  |   Y    |  
    |           |           |            |        |  
 179|  Up Fast  |195/204/205|   169R     |        |  
    |           |           | Also 203N  |        |  
    |           |           |            |        |  
    |  Dn Fast  |    186    |   169N     |        |  
    |           |           |            |        |  
 181| Platfm 1  |     -     | 136N,137N  |   Y    |  
    |           |           |            |        |  
 182| North Dock|     -     | 136N,137R  |   Y    |  
    |           |           |            |        |  
 183| Platfm 1  |  181/182  | 139N,140R  |        |  
    |           |           |            |        |  
 184| Platfm 1  |  181/182  | 139R,142N, |        |  
    |           |           |    147R    |        |  
    |           |           | Also 140N  |        |  
    |           |           |            |        |  
    | Platfm 2  |     -     | 139N,142N, |   Y    |  
    |           |           | 146N,147R  |        |  
    |           |           |            |        |  
 185| Platfm 1  |  181/182  | 139R,142N, |        |  
    |           |           | 143N,145R, |        |  
    |           |           |    146R    |        |  
    |           |           |    Also    |        |  
    |           |           | 140N,147N  |        |  
    |           |           |            |        |  
    | Platfm 2  |    -      | 142N,143N, |   Y    |  
    |           |           | 145R,146R  |        |  
    |           |           | Also 147N  |        |  
    |           |           |            |        |  
 186|  Dn Slow  |    14     | 150N,151R  |   Y    |  
    |           |           | Also 32R   |        |  
    |           |           |            |        |  
    |  Dn Fast  |    13     | 150N,151N  |   Y    |  
    |           |           | Also 28R   |        |  
    |           |           |            |        |  
 187|  Up Slow  |   06/08   | 160N,161N, |   Y    | Shunt signal
    |           |           |   162N     |        |  for 194
    |           |           | Also 196N  |        | Caution required
    |           |           |            |        |  
 189|  Dn Slow  |    14     | 143N,145N, |   Y    |  
    |           |           |   149N     |        |  
    |           |           | Also 32R   |        |  
    |           |           |            |        |  
 190|  Up Slow  |  177/194  | 159N,160R, |        | Shunt signal
    |           |           | 164N,165N  |        |  for 202
    |           |           |   Also     |        | Caution required
    |           |           | 196N,203N  |        |  
    |           |           |            |        |  
 191|  Up Fast  |    04     | 159N,160N, |   Y    | Shunt signal
    |           |           | 164N,165N  |        |  for 204
    |           |           | Also 203N  |        | Caution required
    |           |           |            |        |  
 193|  Up Fast  |195/202/204| 169N,174N, |        | Shunt signal
    |           |           |   176R     |        |  for 207
    |           |           | Also 203N  |        | Caution required
    |           |           |            |        |  
    |           |           |            |        |  
 194|  Up Slow  |   06/08   | 160N,161N, |        |  
    |           |           |   162N     |        |  
    |           |           | Also 196N  |        |  
    |           |           |            |        |  
 195|  Up Slow  |  177/194  | 164N,165R  |        | Caution if
    |           |           | Also 203N  |        |  194N and 177N
    |           |           |            |        |  
 198|  Up Slow  |  177/194  |   165N     |        | Caution if
    |           |           |            |        |  194N and 177N
    |           |           |            |        |  
 199|  Up Slow  |    198    |   166R     |        |  
    |           |           |            |        |  
 200|  Up Slow  |    198    | 166N,174N, |        | Caution if 198N
    |           |           |   176N     |        |  
    |           |           |            |        |  
 201|  Up Slow  |  200/207  |            |        | Crookhall IBS
    |           |           |            |        |  
 202|  Up Slow  |  177/194  | 164N,165R  |        | Caution if 
    |           |           |   Also     |        |  194N and 177N
    |           |           | 196N,203N  |        |  
    |           |           |            |        |  
 204|  Up Fast  |    04     | 159N,160N, |        |  
    |           |           | 164N,165N  |        |  
    |           |           | Also 203N  |        |  
    |           |           |            |        |  
 205|  Dn Slow  |  185/189  | 155N,172N, |        |  
    |           |           |   173R     |        |  
    |           |           |            |        |  
    |  Dn Fast  |    179    | 172N,173R  |        |  
    |           |           |            |        |  
 207|  Up Fast  |195/202/204| 169N,174N, |        | Caution if 204N
    |           |           |   176R     |        |  
    |           |           | Also 203N  |        |  
    |           |           |            |        |  
 208|  Up Slow  |     -     | 194R,198R, |        | Distant
    |           |           |   200R     |        | Slotted by
    |           |           |            |        |  201 and 07
    |           |           |            |        |  
 209|  Up Slow  |           |   201R     |        | Crookhall IBS
    |           |           |            |        |  Distant
    |           |           |            |        | Slotted by
    |           |           |            |        |  Newton Hall
    |           |           |            |        |  Starter
    |           |           |            |        |  
 210|  Up Fast  |195/292/204| 169N,176N  |        | Caution if
    |           |           | Also 203N  |        |  195N and 202N and
    |           |           |            |        |  204N
    |           |           |            |        |  
 211|  Up Fast  |    210    |            |        | Crookhall IBS
    |           |           |            |        |  
 213|  Up Fast  |     -     | 204N,210N  |        | Distant
    |           |           |            |        | Slotted by
    |           |           |            |        |  211 and 02
    |           |           |            |        |  
 214|  Up Fast  |     -     |   211R     |        | Crookhall IBS
    |           |           |            |        |  Distant
    |           |           |            |        |  
 215|  Up Slow  |  185/189  | 154N,155R  |        |  
    |           |           |            |        |  
    |  Up Fast  |    186    | 154N,155N  |        |  
    |           |           |   173N     |        |  
    |           |           |            |        |  
------------------------------------------------------------------

FPL :
-----

--------------------------
    FPL    | locks switch
--------------------------
           |    
       SOUTH BOX
           |    
     21    |  20
     23    |  24
     25    |  22
     26    |  27
     30    |  31,35
     34    |  35
           |    
-----------|--------------
           |    
       NORTH BOX
           |    
    136    |  137
    138    |  139
    141    |  146
    142    |  139,146
    143    |  145
    144    |  146
    149    |  151
    150    |  151
    153    |  155
    154    |  155
    158    |  160
    159    |  160
    161    |  162
    163    |  165
    164    |  165
    168    |  169
    171    |  173
    172    |  173
    174    |  176
           |    
--------------------------


Control levers for opposite direction working through station roads.

For each line through the station, two levers are used to control
movements in opposite direction to the normal working.
One lever is the request lever (indicated below with "R"), the other
 is the accept lever (indicated with "A").
Note that the accept lever is released by the request lever.

The request lever will lock signals in normal working direction at
the exit of the required line.
The accept lever will lock signals which in normal working direction
give access to the required line.
The accept lever will also release signals which give access to the
required line in opposite direction.

Note that if any signal, listed in the table below as locked, is cleared,
the related control lever is locked.

------------------------------------------------------------------
   Line    | lever |     Signals locked       | Signals released |
------------------------------------------------------------------
           |       |                          |                  |
 Down Slow |188 (R)| 105,110                  |                  |
           | 32 (A)| 047,511                  | 186(w 151R),189  |
           |       |                          |                  |
 Down Fast |192 (R)| 106                      |                  |
           | 28 (A)| 046,501                  | 186(w 151N)      |
           |       |                          |                  |
 Up Fast   | 39 (R)| 004                      |                  |
           |203 (A)| 179,190,191,193,195,202, | 045              |
           |       | 204,207,210              |                  |
           |       |                          |                  |
 Up Slow   | 40 (R)| 006,008                  |                  |
           |196 (A)| 187,190,194,202          | 044              |
           |       |                          |                  |
------------------------------------------------------------------
