The indicator LEDs on the PM42s and what they mean.

PM 1

 

LED

Type

Location

1.

S

Crossover 202 between 204-205 inner track to far end of layout

2.

S

Jefferson main and outer track between 204 and 205

3.

S

Sw 110 to Sw 101

4.

S

Between 205 and Independence near 202

PM 2

 

LED

Type

Location

1.

S

Between Independence near 202 and halfway down mountain near Jefferson.

2.

S

Halfway down mountain near

Jefferson to Sw 110

3.

S

Springfield R/B

4.

R/B

Springfield R/B

PM 3

 

LED

Type

Location

1.

S

Jefferson Yard Tracks 1-8

2.

S

Classifying Tracks in Jefferson yard

3.

S

Jefferson Yard R/B

4.

R/B

Jefferson Yard R/B

PM 4

 

LED

Type

Location

1.

S

203 Crossover

2.

R/B

203 Crossover

3.

S

202 Crossover

4.

R/B

202 Crossover

 

Key:  S=Short indicator

R/B=Reverse Block indicator

 

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Last update 11/28/2007

© 2007 John Stabe