The following items were discussed at the Signal Class on July 26, 2003:
|
| Crossing Circuits: |
Central Xing -- narrow gauge line back of museum - Single WigWag with motion detector and audio overlay
Alpine Xing -- main line at museum entrance -- Dual WigWags with track circuit control
11th St Xing -- (next months discussion)
|
|
| Key Elements Discussed: |
Motion Detector (used at both Central and Alpine Xings)
Audio Track Circuits (Overlay at Central to prevent "false" detection)
AC Track Circuits (Signal Circuit on main line that activates Alpine WigWags)
PARTIAL NOTES --- MORE WILL BE ADDED
|
|
|
|
|
|
|
|