VH Fibre Optics (Pty) Ltd Sirocco Blown Fibre for Data Centre Solutions 1

2 Datacentre Architectures

3 Optical fibre delivery system – jointly developed with BT for the Metro / Access network Deployed where; Future Network Expansion is expected Customer locations and / or fibre count / type are uncertain Utilises compressed air to blow fibre into pre-installed tubes from point-to-point System consists of :- Enhanced Performance (Blown) Fibre Units (EPFU) Blown Tube Cable Tube Connecting Accessories Installation Equipment Customer Premise and Termination Equipment Introduction to Sirocco OAsys ® OAsys ®

4 Blown Fibre Units – Detailed Information 4 fibre unit2 fibre unit 12 fibre unit8 fibre unit

5 Blown Tube Cable - External Empty HDPE low friction tubes Available in 1, 2, 4, 7, 12, 19 and 24 way Individual tubes available in opaque or translucent Choice of colours Other variations; i.e. Anti-termite, anti-rodent Tubes numbered for easy identification Direct Install Last-mile and Campus In ducts and sub-ducts Direct Burial Last-mile and Campus In trenches Steel Armour Last-mile, Industrial and Campus For maximum protection

6 Blown Tube Cable - Internal Empty LSOH low friction tubes Indoor version with flame retardant IEC 332 part 3 (flame propagation) IEC 1034 (smoke emission) Available in 1, 2, 4, 7, 12, 19 and 24 way Tubes numbered for easy identification Outer Sheath Blown Fibre Tubes Ripcords

7 Sirocco – Example Datacentre  Reference datacentre using Sirocco blown fibre:- Morgan Stanley (London UK)  Product volumes used F OM3 EPFU Bundles = 50km 12-Way Internal tube cable = 20km+ 7-Way Internal tube cable = 20km+ 2-Way Internal tube cable = 5km 3U Tube Patching shelves = 20+  There where 3 sites where the installation took place:-  Heathrow – Datacentre  Croydon - Datacentre  Canary Wharf Datacentre