Are Class B SLCs permitted to be T-tapped?

In the context of alarm systems, Class B SLCs (Signaling Line Circuits) are designed for certain applications and have specific wiring requirements. T-tapping, which is the practice of connecting additional wire segments to a main wire run, is permissible for Class B SLCs under standard guidelines.

The reason for this permissibility lies in the electrical design of Class B SLCs, which allows for devices to be connected in a way that maintains their functionality while preventing issues such as signal loss or degradation. T-tapping does not compromise the integrity of the loop or circuit, provided that the design adheres to the specifications outlined in relevant codes and standards.

This flexibility in wiring helps in specific installations and repairs, allowing maintenance personnel to easily add or remove devices without the need for complete rewiring of the system. Hence, the correct answer reflects that T-tapping is indeed allowed for Class B SLCs, as it supports practical applications in the field.