In-house cabling 
 
 
Cabling is the IT investment with the longest life time
Structured cabling
- One or several wiring closets on every floor
 - Enough space for routers and switches
 - Enough fiber in the backbone cabling between them
 - Cross connections for fibre and copper in the closets
 - UTP cat. 5 (currently, in the future probably something else) cabling from the closets to the outlets (max. 90 m)
 - RJ-45 connectors, 4 per office desk
 - Adequate power outlets to the closets and office rooms
 
=>	A network that can adapt to changing needs:
Data and telephony in the same network
Traditional LANs: Ethernet, Token Ring etc.
Fast LANs: 100 Mb/s - 1 Gb/s Ethernet