2010IEC 61156-2-1:2010 Multicore and symmetrical pair/quad cables for digital communications - Part 2-1: Horizontal floor wiring - Blank detail specification
2003IEC 61156-2-1:2003 Multicore and symmetrical pair/quad cables for digital communications - Part 2-1: Horizontal floor wiring; Blank detail specification
2001IEC 61156-2-1:2001 Multicore and symmetrical pair/quad cables for digital communications - Part 2-1: Horizontal floor wiring - Blank detail specification
2000IEC 61156-2-1:2000 Multicore and symmetrical pair/quad cables for digital communications - Part 2: Horizontal floor wiring - Section 1: Blank detail specification