20. Telecommunication equipment
20.01 Telecommunication cabinets
20.01.02.01.XX Products withdrawn from the assortment
20.02 LAN-cable and tools
20.03 Copper components for low voltage cabling system
20.04 Optical components for low voltage cabling system
20.05 Power supply and Monitoring
20.06 Integrated solutions for data centers
20.10 Specialized software ITK