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Pennsylvania Railroad

Pennsylvanie Railroad position light signals can be connected to the Signalist SC1 as in the below diagram. A second single head can be connected to terminals E,F, G and H when a single head configuration is required instead of A, B, C and D.

PRR twin head position light connected to a SC1

Pennsylvania railroad position light signal wiring diagram


PRR 'Devil Eyes' twin head position light connected to a SC1

Pennsylvania Railroad position light signal wiring


Note that when using the CV38=8 configuration flashing aspects can be acheived by toggling between the solid aspect and dark. Software such as JMRI will do this automatically.

PRR

Rule

Description

CV38=74

Aspect No

CV38=67

Aspect No

Aspect

292

Stop

0

0

R

294

Take siding

1

-

X

291

Stop and Proceed

2

-

R

Y

290

Restricting

3

-

R

\

289

Permissive

4

3

\  

288

Slow Approach

5

-

R

/

287

Slow Clear

6

-

 

285A

Caution

7

-

\

Y

285

Approach

8

1

/

284

Approach Slow

9

-

/

/

283A

Medium App. (flashing)

10

-

R

/

283

Medium to Clear

11

-

R

|

282

Approach Medium

12

-

/

|

281

Clear

13

2

|

280

Clear Block

14

-

|

Y

-

Dark

15

8

 


Key R=Red, G =Green, g=Flashing Green, Y=Yellow, y=Flashing Yellow, L=Lunar, W=White.
N=Normal or Closed, R=Reversed or Thrown

In JMRI use DCC Signal Mast Decoder for CV38=74 and CV38=67, use Quad Output for CV38=8


Signal reference chart for 1956 rules can be found at the Signals of the US website:- PRR PDF



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