An article from scratch :)

Concept:

Introduction:

• Presignals
• link to signal tutorial
• maybe link to boolean logic and red=1
• link to prios as basic logic
• something about timing / running conditions

Logic gates

• NOT
• OR (trivial)
• AND

Advanced logic elements

• XOR
• state machine / basic counter
• edge detector
• delays
• red -> absolute red

Applications

• SRNW stations: Many types
• flipflop-split
• forced ML split (PSG199)

Advanced concepts

• 1 in 1 out (PSG239)
• Bigger feeder SRNW station (PZ22, PSG199)
• Self-regulating RV (PSG229)

Things to check: PSG239, 223!, 214