CTC Machine
This is the dispatcher's CTC machine that it used to control
the model railroad.  The black part on top contains a linear
schematic of the railroad, with LEDs to show occupancy.
The green part on the bottom contains the levers for all
switches and signals controlled by the dispatcher.
The phone attached to the left of the desk is to contact the
Renovo yard master.  The train sheet is seen on the desk.

Entire CTC machine

Left half only

Right half only

Repeater Boards
Repeater boards are located above interlockings "in the sky".
These simulate cab signals and allow crews to easily see signals.

Repeaters above layout

Lock Haven Repeater

Olean Repeater

Computer System
Dr. Bruce Chubb's C/MRI system is used to run the signals.
"SMINI" nodes are located around the layout.
A computer controls the system, processing input and output from the SMINI's.

SMINI node for Drift/Emporium

8 SMINI Nodes that interface  with the CTC machine