
Sectional Specification For Backbone Cables, Riser And Campus, With A Common Overall Screen For Use In Digital Communication
出版:National Standards Authority of Ireland

专家解读视频
Covers individually screened pair(s) or quad(s) in cables for vertical shafts or vertically between floors (riser backbone cables) or in horizontal between buildings (campus backbone cables). In the same cable both screened and unscreened elements may be used.
SS EN 50169 Ed. 1 (1995) - Identical
UNE EN 50169:1996 - Identical
NBN EN 50169:1995 - Identical
DIN EN 50169 (1995-08) - Identical
BS EN 50169:1996 - Identical
SN EN 50169:1994 - Identical
NF EN 50169:1995 - Identical