marklin Central Station 3 Manual Del Usuario página 9

Connections
Switched mode power pack
Track connection (max. 5 amps)
Programming track connection (max. 1.5 amps);
connection diagram the same as for the layout
track
Device bus input, 60123 (only on 60216)
Device bus output, 60125, 60126
Märklin bus, Link S88; Connect 6021; Booster
USB, mouse, keyboard, memory, hub, ...
USB, only for recharging
LAN, direct connection to a router
Line Out, connection for an active speaker
Connections on the underside of the device for
S88
S88 60881/60882 decoder, (only on 60216)