Middle Earth Model Railway - Power Supply

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Electrical Systems > Introduction | Power Supply | CBUS | DCC | Decoder Stay Alive | Computer Control | Former Control System | Accessories

The layout is powered from six 240 Volt AC power supplies delivering a number of low voltage outputs for different purposes:


	Type	Use	Area

1	15V DC 6A SMPS	DCC Booster	All track

2	12V DC 5A SMPS	CBUS modules and accessories	Michel Delving, Hobbiton and Rivendell

3	12V DC 5A SMPS	CBUS modules and accessories	Buckland, Bree and Staddle

4	16V AC	CBUS modules and accessories	Grey Havens

5	16V AC	CBUS point modules	Michel Delving, Hobbiton and Rivendell

6	16V AC	CBUS point modules	Buckland and Bree

The 15V DC 6A SMPS supplies the DCC booster rated at 5A that powers all the layout track. The MERG CBUS modules operate from a 12V DC supply with the exception of those operating the points, which require 16V AC. A new, 12V DC version of the point module is available but had not been developed when the conversion work started. The two 12V DC sources also power ancillary circuits including lighting and other scenic effects.