The standard cable coil can store up to 28 meters of single jacket 400Hz cable, and a smaller version can hold up to 10 meters. The cable is wound up or unwound automatically by using buttons on the aircraft connector.
Power is transferred between the terminal housing and the extension cable by a cable harness or a Cavotec Fladung 400Hz coupling. In order to ensure safe operation of the system, the drum is secured by a patented system of compression rollers around the drum, which in turn is fitted with ball bearings.
Power is transferred through a PLC controlled motor, which is fitted with a gearwheel and chain-drive system. A limit switch, or initiator, controls the end-of-travel cut-off in both directions.
As an extra security measure the drum is fitted with an overload fuse that switches off the drum in case of malfunction. In addition to these cable coils, Cavotec Fladung also produces a range of cable winders with manual or automatic operation.
These winders can be fitted with a variety of aircraft cables. The useful length of these cables is typically 20 meters and all commands of the cable winder are transmitted over integrated control wires.