What construction features are indicated by the cable designation MLM DST U DQ(ZN) (SR) BH?

The designation describes a multi-loose-tube (MLM) design with a dry-core water-blocking system, a dielectric quad strength member (DQ) featuring symmetrically embedded glass-reinforced plastic rods, corrugated steel tape reinforcement (SR) with a copolymer coating, and a black UV-stabilised high-density polyethylene outer sheath (BH). This fully dry construction eliminates the need for flooding compounds, simplifies splicing, and ensures consistent mechanical and environmental performance across the entire fibre count range.