Kay Hernan is a fairly simple model railway as things go but it may look a bit daunting to someone fresh to the whole idea of computer control. It’s really quite simple and is built from a collection of circuits and networks working together.
The physical layout is a fairly straightforward model railway. There are no complicated rail arrangements.
There are only four points and all the main line is single track.
The locomotives are powered and controlled by a Lenz DCC system…
- TR150 mains transformer
- LZV100 command station
- LH100 throttle
- LI-USB computer interface
DCC is a way of powering model railway locomotives that send control signals as well as traction power to the rails. Each locomotive has a decoder that recognizes control signals addressed to itself and carried them out.
The operation of the layout, other than driving the locomotives, is performed by a MERG CBUS system. This is made up of…
- CANUSB comptuer interface
- CANACE8C eight channel feedback input module
- CANACC8 eight channel accessory output module
- CANLED mimic panel LED driver
- CANACE3 mimic panel switch input module
- CANTOTI eight channel interface for DCCTOTI8 (this is a CANACE8C with different firmware)
- CANSERVO8 eight channel servo driver
- DCCTOTI8 eight channel train on track indicator (TOTI) occupation sensor
- 12V 5A DC power supply unit
The DCC and CBUS systems are controlled by a copy of JMRI running on a Windows laptop PC.