
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.
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
------------------------------------------------------------------
001 |           |           | 2R,3R,10R  |        | Down Main
    |           |           |            |        |  Distant 
    |           |           |            |        |  
002 | Down Main |     3     | 25N,26R,27N|        | Caution if 3N
    |           |           | 79N*,78R*, |        |  
    |           |           | 83N*,98N*  |        |  
    |           |           |            |        |  
003 | Down Main |    10     | 79N,78R,   |        | Caution if 10N
    |           |           | 83N,98N    |        |  
    |           |           |            |        |  
004 | Down Platf|    9/11   | 26R,27R,   |        | Caution
    |           |           |34N,36R,37N |        | see Note  
    |           |           | 79*,78R*,  |        |  
    |           |           |    83N*,   |        |
    |           |           |81N* if 79N |        |  
    |           |           |            |        |  
006 |Culm Valley|    8      | 36R*,37N*, |        | Caution if 8N
    |           |           |   45N*     |        |  
    |           |           |            |        |  
007 | Down Platf|    9/11   |  37R,36R,  |  Yes   | Caution
    |           |           | 79*,78R*,  |        | if calling on
    |           |           |    83N*,   |        |
    |           |           |81N* if 79N |        |  
    |           |           |            |        |  
008 | Bay Platf |   39/41   |  36R,37N,  |  Yes   | see Note
    |           |           |    40R*    |        |
    |           |           |            |        |  
009 | Down Main |    10     |  79R,78R,  |        | Caution if 10N
    |           |           |  83N,98N   |        |  
    |           |           |            |        |  
010 | Down Main | Cullompton|            |        | Requires LC
    |           |           |            |        |  
011 |  Spur     |   62/83   |79N,78R,81N |        |  
    |           |           |            |        |  
012 | Tiv Branch|    13     |  58R,56R,  |        |
    |           |           |57R,66R,63R |        |  
    |           |           |            |        |  
013 | Tiv Branch| Tiverton  |            |        | Requires LC
    |           |           |            |        |  
019 | Back Platf|    12     |  20R,53N,  |  Yes   |  
    |           |           |  51N,52R   |        |  
    |           |           |            |        |  
021 | Park Sdg  |    -      |  51N,52T,  |        |  
    |           |           |  53N,20R   |        |  
    |           |           |            |        |  
024 | Down Main |    3      |25R,27N,26R |        |  
    | Down Platf|   9/11    |25R,27R,26R,|  Yes   |  
    |           |           |34N,37N,36R |        |  
    | Up Main   |    47     |    25N     |        |  
    |           |           |            |        |  
028 | Up Main   |   111     |    25R     |        |  
    |           |           |            |        |  
029 | Up Main   |   111     |  27R,26R,  |        |  
    |           |           |  25R,28R   |        |  
    |           |           |            |        |  
030 | Down Platf|   9/11    |31R,27N,26R,|  Yes   |  
    |           |           |34N,37N,36R,|        |  
    |           |           |    78R*    |        |  
    |           |           |            |        |  
032 |Down Ref Sd|    -      |27N,36R,31N |  Yes   |  
    |           |           |            |        |  
033 | Down Platf|   9/11    |34R,37N,36R |  Yes   |  
    |           |           |    78R*    |        |  
    |           |           |            |        |  
035 | Down Platf|  32/29    |    35N     |        |  
    | Down Sdg  |    -      |    35R     |  Yes   |  
    |           |           |            |        |  
038 | Down Platf|    35     |  37N,36R   |        |  
    |Culm Valley|    -      |  37R,36R   |        | See note
    |           |           |            |        |  
039 | Bay Platf |    44     |  42N,40R   |  Yes   |  
    |           |           |            |        |  
041 | Goods Shed|    61     |42R,40R,102R|  Yes   |  
    |           |           |            |        |  
043 | Bay Platf |   109     |  42R,40R   |  Yes   |  
    |           |           |            |        |  
044 | Bay Platf |    61     |  45R,102N  |  Yes   |  
    |           |           |            |        |  
046 | Bay Platf |   109     | 45R,42N,40R|  Yes   |  
    |           |           |            |        |  
047 | Up Platf  |    48     |  49R,50R   |  Yes   |  
    |           |           | 48R if 51N |        |  
    |           |           |            |        |  
048 | Up Platf  |   89/90   | 51N,52R,92N|  Yes   |  
    |           |           |   121N*    |        |  
    |           |           |124N* if 96R|        |  
    | Back Platf|    12     | 51R,52R,53N|  Yes   |  
    | Butter Plf|    64     | 51R,52R,53R|  Yes   |  
    |           |           |            |        |  
054 | Up Platf  |   112     | 51R,52R,53R|        |  
    |           |           |            |        |  
055 | Branch Sdg|    -      |  58R,56R   |        |  
    |           |           |  63N,59R   |        |  
    |           |           |            |        |  
060 | Back Platf|  113/21   |    60R,    |  Yes   |  
    |           |           |63B,57R,66R,|        |  
    |           |           |  58R,56R   |        |  
    |           |           |            |        |  
061 | Down Platf|   82/62   | 103N,81R   |        |  
    |           |           |    83*     |        |  
    |           |           |            |        |  
061A| Down Platf|   82/62   | 103R,81R   |        |  
    |           |           |    83*     |        |  
    |           |           |            |        |  
062 |   Spur    |    -      |    83N     |  Yes   |  
    |           |           |            |        |  
064 | Tiv Branch|    13     |    65R,    |        |  
    |           |           | 63N,57R,66R|        |  
    |           |           |            |        |  
64A | Butter Plf|    54     |    65N     |  Yes   |  
    |           |           |            |        |  
067 |Engine Shed|    -      | 58N,56R,68R|        |  
    |           |           |            |        |  
071 | Back Platf|  113/21   | 68R,58N,56R|  Yes   |  
    |           |           |            |        |  
072 | Pig Pens  |    -      |  58N,56R,  |  Yes   |  
    |           |           |  68N,73R   |        |  
    |           |           |            |        |  
074 | Back Platf|  113/21   |  58N,56R,  |  Yes   |  
    |           |           |  68N,73R   |        |  
    |           |           |            |        |  
080 | Down Platf|    38     |  79R,78R   |  Yes   |  
    |           |           |            |        |  
082 | Down Main |    10     |  83R,98N   |        |  
    |           |           |            |        |  
084 | Down Platf|    38     | 81N,79N,78R|  Yes   |  
    |           |           |            |        |  
84A | Down Platf|   84/85   |    83N     |        |  
    |           |           |            |        |  
085 | Bay Platf |    46     |  81R,103N, |  Yes   |  
    |           |           |    102N    |        |  
    | Goods Shed|    43     |  81R,103N, |  Yes   |  
    |           |           |    102R    |        |  
    | Goods Yard|     -     |  81R,103R  |        |  
    |           |           |            |        |  
086 | Down Main |    80     |    83N     |        |  
    | Down Platf|   84/85   |   83R,85R  |        |  
    |           |           |            |        |  
087 |Back Plf Ln|    88     |   58N,56R, |        |  
    |           |           | 68N,73N,88R|        |  
    |           |           |            |        |  
088 | Up Platf  |   89/90   |   92R,93R  |        |  
    |           |           |121N* if 96R|        |  
    |           |           |124N* if 96R|        |  
    |           |           |            |        |  
089 | Up Ref Sdg|    -      | 96N,97R,94N|  Yes   |  
    |           |           |            |        |  
090 | Up Main   |    91     | 96R,97R,91R|        |  
    |           |           |            |        |  
091 | Down Main |    10     |    98R     |        |  
    |           |           |            |        |  
095 | Up Platf  | 120/117   | 94R,96N,97R|        |  
    |           |           |            |        |  
099 | Down Main |    86     |    98N     |        |  
    | Up Main   |   122     | 98N,96N,97R|        |  
    |           |           | 49N*,50R*, |        |  
    |           |           |    25N*    |        |  
    | Up Platf  | 120/117   | 98R,96R,97R|        |  
    |           |           |            |        |  
110 |Culm Valley| Hemyock   |  37N,36R   |        | See note
    |           |           |            |        |  
111 | Up Main   |Sampford P |            |        | Requires LC
    |           |           |            |        |  
112 | Up Main   |   111     | 49R,50R,25N|        | Caution if 111N
    |           |           |            |        |  
113 | Up Platf  |   112     | 51R,52R,53N|        |  
    |           |           |    50R*    |        |  
    |           |           |            |        |  
114 | Back Platf|  113/21   |63R,57R,66R,|  Yes   | Caution if
    |           |           |  58R,56R   |        | calling on 
    |           |           |            |        |  
115 | Butter Plf|    54     |63N,57R,66R,|  Yes   | Caution
    |           |           |    65R     |        |  
    |           |           |            |        |  
116 | Back Platf|  113/21   |92R,93R,73N,|  Yes   | Calling on  
    |           |           |68N,58N,56R,|        | only 
    |           |           |   121N*    |        |  
    |           |           |            |        |  
117 | Back Platf|  113/21   |92R,93R,73N,|        |  
    |           |           |68N,58N,56R |        |  
    |           |           |            |        |  
119 | Up Platf  |   118     |  92N,93R,  |  Yes   | Calling on
    |           |           | 51N*,121N* |        | only
    |           |           |            |        |  
    |           |           |            |        |  
120 | Up Platf  |   118     |  92N,93R,  |        |  
    |           |           |    51N*    |        |  
    |           |           |            |        |  
121 | Up Platf  |  120/117  |98R,96R,97R,|        | Caution if 120N
    |           |           |116N*,119N* |        |    and 117N
    |           |           | 48N*,88N*  |        | See note 
    |           |           |            |        |  
122 | Up Main   |   111     |49N,50R,25N |        | Caution if 111N
    |           |           |            |        |  
123 | Up Main   |   112     |98N,96N,97R,|        | Caution if 122N
    |           |           |    49N*    |        |  
    |           |           |            |        |  
124 | Up Main   |  121/123  |    98N*    |        | Caution if
    |           |           |48N* if 96R |        | 121N and 123N
    |           |           |88N* if 96R |        |  
    |           |           |            |        |  
125 |           |           | 124R,123R, |        | Up Main Distant 
    |           |           | 122R,111R  |        |  
    |           |           |            |        |  

Notes:
Signal 004 : Caution required for trains not booked to stop
              or terminate at Tiverton Jn.
Signal 008 : Caution required if route 39A not set.
             Caution required if section W4 occupied.
             Switch 045 must be normal, except when section W5 occupied.
Signal 121 : Caution required for trains not booked to stop
              or terminate at Tiverton Jn even if signal
              120 or 117 are clear.
Signals 38 and 110 : see note on Culm Valley line.

Additional locking requirements :

-----------------------
 position  | requires
-----------------------
    27R    |    31N
    51R    |    20N
    53R    |    51R
    63R    |    59N
    96R    |    94N
    
FPL :

--------------------------
    FPL    | locks switch
--------------------------
    26     |     27
    36     |     37
    40     |     42
    50     |     49
    52     |     51
    56     |     58
    57     |     63
    66     |     63
    78     |     79
    93     |     92
    97     |     96
           |    
   
Culm Valley Line :
Special direction selection levers are used to control
the Culm Valley Line.
Lever CVD must be reversed to clear the line for trains
  towards Hemyock.
Lever CVU must be reversed to clear the line for trains
  towards Tiverton Jn.
For shunt moves which do not move beyond section W1,
  these settings are not required.
