| 1. This is how the system looks when it
is first powered up. Both rotary switches are pointing upwards and both
"Line Normal" lights are illuminated. |
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| 2. The operator at Position One turns
his rotary switch to the desired class of train. The "Line Normal"
lights are extinguished and Position Two's light for that class of train is
now illuminated. |
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| 3. To accept the train the operator at
Position Two moves his bottom righthand switch to "Train Accepted".
This action illuminates the green "Train Going To" light at Position
One and the red "Train Coming From" light at Position Two. |
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| The image above right is for illustration only,
and is not meant to correspond with these notes. |
| 4. The operator at Position One can now
send a Train to Position Two. When the Train enters the Section he will move
his bottom lefthand switch which will illuminate the "Train Entering
Section" lights on both Instruments. |
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5. When the operator at Position Two
sees the "Train Entering Section" light is illuminated, he will
acknowledge this by moving his bottom lefthand switch which will extinguish
both his "Train Entering Section" light and that at Position One
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| 6. Once the Train has cleared the
Section the operator at Position Two will move his bottom righthand switch up
to "Train out of Section" which will extinguish his red "Train
Coming From" light and Position One's green "Train Going To"
light. |
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7. When the operator at Position One
sees his "Train Going To" light is extinguished, he will re-set his
rotary switch which will once again restore the "Line Normal" lights.
Either end is now free to offer on a train. |
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