 There were five block sections.The three on the main line, Shepherdswell-Eythorne, Eythorne-Eastry and Eastry-Wingham, were controlled by electric tablet, the first by Tyler's system and the other two by Webb & Thomson's.The Richborough branch had two sections, Eastry-Poison Cross and Poison Cross-Richborough Port, controlled by simple tablets kept in two boxes at Poison Cross (one with the notorious label "Poison Sandwich").