In its deepest configuration, ROPOS used a cage tether management system (TMS) which was fitted with 300 m of synthetic tether. The cage could be lowered down to 5000 m through the ship's A-frame using our deep winch and its armored umbilical. Primarily due to cost and a lack of demand for this configuration, it could not be included in our 2005 refit. There is a refit plan in place for this configuration should the demand develop. The new configuration would use a top-hat TMS instead of the cage in order to preserve all of ROPOS' new functionalities.