Approved Document R: physical infrastructure for high-speed electronic communications network (in-building physical infrastructure), file type: PDF, file size: 919 KB
Dogfen Gymeradwy R: seilwaith ffisegol ar gyfer rhwydweithiau cyfathrebu electronig cyflym (mewn adeilad seilwaith ffisegol), Saesneg yn unig, math o ffeil: PDF, maint ffeil: 920 KB