buses[0] = new DefaultBus(firstBusNumber);
DefaultDeviceGroup dg = DefaultDeviceGroup
.newDescriptionDeviceGroup(buses[0]);
new DescriptionDevice(dg);
dg = DefaultDeviceGroup.newPowerGroup(buses[0]);
new PowerDevice(dg);
dg = DefaultDeviceGroup.newGenericLocoGroup
(buses[0], GenericLocoDevice.class);
dg.setImplicitCreationAllowed(true);
dg = DefaultDeviceGroup.newGenericAccessoryGroup
(buses[0], GenericAccessoryDevice.class);