Hi Ralph, the english version of the IB manual, available at www.uhlenbrock.de is an old one, it doesn't include Route Control functions, but it's complete for Keyboard functions and others, including the connection of a 6021.
I suggest you take a look on it.
In regards to additional power for your layout: you need digital boosters fed by separate trafos to add power.
If you want to feed your turnout decoders, a Delta Control is useful.
You can use Viessmann decoders and feed them with AC from a trafo. No additional equipment needed, only some caution.
Regards,

Hola Pablo, let me try to put some light...
If you plan to control your turnouts digitally, you need to add keyboards to your 6021 to command them, not a trafo.
Each keyboard serves up to 16 turnouts/signals.
Keyboards are not cheap and currently being discontinued, so I think this is not a good option. I suggest you to wait until september, when Uhlenbrock releases the new 6021-LocoNet-Adapter. It allows the connection of all LocoNet devices to your 6021, thus greatly expanding its capabilities.
In addition, you get IRIS, an infrared remote control for 80 locos and 256 turnouts. A very good option, in my opinion.
For non-digital control of turnouts, you need a trafo and control boxes. You should provide good isolation of motors under the turnouts to avoid contact between center rail and metal cover of motors, since such a contact will very probably damage your 6021. This is the old way for tournout control, obsolete in my opinion. You can take full advantage of state-of-the-art digital control with the new 6021-LocoNet-Adapter.
Regards,

Gracias,

I did understand about the keyboard as a means of controlling the turnouts. (though the advice to wait for the loco-net adaptor is greatly appreciated; actually I had thought of eventually getting an Intellibox)

However, my question was about powering the turnouts (rather than controlling them). Is the power coming from the 6002 sufficient to power 3-4 locos and the turnouts?

Thanks,

Pablo

I have two keyboards (6040) connected to my IB. This gives me control of 40 items (switches, signals, etc). The 6040 plugs into the IB, just like to a 6021. In the back of the IB manual, there is a table of settings for decoder (k83) addresses.
Also, look at section 7.4 (page 54).


The Viessmann 5211 has a connection for a separate power supply for the relays. This is where you can use your old trafos.
The 5211 also have external switches; no need to open the case to change settings.