Is it true that an A-Card must be issued before a train enters manual block behind another train?

An A-Card, which indicates authorization for a train to operate in a manual block section, is not required to be issued in the scenario described. The rule stipulates that an A-Card is necessary specifically when a train is entering a block that is occupied, and not merely before entering a manual block behind another train. The focus is on ensuring that safety procedures are followed, but the issuance of an A-Card reflects operational specifics that apply based on the train's position and readiness status during its approach to the block.

Understanding this scenario is essential for maintaining safe operations on the railway. An A-Card acts as a mechanism for the necessary communication and authorization regarding train movements, but it is not a universal prerequisite for all train movements within manual block sections, depending on the existing operational rules.