(1) Minimum equipment of fixed signals at block stations under the absolute block system of working provided with manually operated multi aspect colour light signalling for each direction shall be as follows.-
(a) at 'B' class stations…. a distant, a home, and a starter;
(b) at 'C' class stations…… a distant and a home; and
(c) at special class stations …. a home and a starter.
(2) Minimum equipment of fixed signals at block stations equipped with multiple aspect colour light under the automatic block system of working shall be,-
(a) in case of single line….......a manually operated home and a starter; and
(b) in case of double line……. a manually operated or semi-automatic home and a starter.
Note- All stop signals at all stations in automatic signalling territory should be semiautomatic.