No. 1 ESS Scanner, Signal Distributor, and Central Pulse Distributor

The peripheral units of no. 1 ESS, described in this article, include the scanners and signal distributors. The scanners serve to collect information for the central control, and the signal distributors execute central control orders in the system. The peripheral units receive orders through the communication buses. The central pulse distributor serves to connect peripheral units to the communication buses so that a central control order, which is broadcast over the bus system, enters one particular peripheral unit.