Suitable for the PC-740, PC-840, PC-860 single control levers. Used in conjunction with a Flybridge for the coordination of two control levers with a single common cable for gear shifting. For twin engine installations two DS units are required. The cables should be no longer than 7 metres with the DS unit installed as close to the transmission as possible (not more than 1.5 metres from the transmission). For best results, the DS unit should be installed horizontally. Contact your Volvo Penta agent prior to installation, for more detailed information.