Keeping the passenger train on-schedule is an important guard function. Guards carry a first aid box with their belongings, along with other important items, all in a medium-sized duty box (generally painted red). The name, designation and base location of the Guard are printed in white on the box. A designated passenger train, halting at all stations, carries a large heavy cast iron cash safe in the guard's brake van, where cash receipts from ticket sales is deposited in a leather pouch by the station manager (earlier called the station master). Since the late 1990s, each guards is provided with a two-way radio so that they can communicate with the locomotive pilot, and other trains if required. The radio has not yet replaced the traditional red and green flags.