APS Online Workshop: Overview

Module A

Module B1

Module B2

Module C

Module D

Module E

• Slides 1-10
• Slides 11-20
• Slides 21-30
• Slides 31-40
• Slides 41-50
• Slide 41
• Slide 42
• Slide 43
• Slide 44
• Slide 45
• Slide 46
• Slide 47
• Slide 48
• Slide 49
• Slide 50
• Slides 51-60
• Slides 61-63

Module E: Exercises

Module F

Module G

Module E1 - Slide 49

This photo shows a signal technician on a ladder with the pedestrian signal head open. The APS control board is mounted in the back of the pedestrian signal head.