The end cabs have airconditioning, and are heated using waste heat from the diesel engine cooling system; the cabins are isolated from frame vibrations by an air-suspension system. The cab control systems use electronic multifunction display, and joystick control. The trains are permanently coupled whilst in service, and can work in multiple forming consists of up to 630m (7 trains, 35 cars) – the inter-trainset coupling is via a Z-AK type automatic coupler, which includes electrical connections for power and data.