B. Controlling 2 Trains

S Gauge, 2-Track Automatic Switching Block

* Project 242 *  Video #659   2 trains   Video #660    3 trains   A Introduction   B 2-Trains   C 3-Trains (9L13)

* S Plans * 1 AutoControls Home 7 S-Plans Index  (in Museum) 8 Special Parts 10 List of Videos ~~~~~~  1-trk (Proj 142)    2-trk (Proj 241)   (AF trk trips)  2-trk (Proj 242)   (reed switches)   1-trk computer-  controlled (9L13).

Comments This 'Page B' describes operation of the unit as a 2-track S gauge "Automatic Passing Siding" for controlling 2 trains. The following 'Page C' describes addition of a relay, to control 3 trains with the same track unit.

Photo 1: Two-track S-gauge Automatic Passing Siding shown at right
Note RR-Concepts SIM (Switching Interface Module) -- which will be mounted in the lower-left ocrner of the control unit -- has not yet been added.

Photo 2: S-gauge Automatic Passing Siding shown at right.
Single-track Automatic Block with RR-Concepts SIM (Switching Interface Module) shown at left.
The single-track Automatic Block is described on the "Project 141" web page..
(photo by Doris Anderman)

Photo 3: Control units, viewed from a different angle
(photo by Doris Anderman)