ICBC-Head Office adopts LASUN Cat6 system products. This network cabling system adopts the star topology, data backbone is based on fiber, voice backbone is with Cat3 Multi-pair Cable, Horizontal Cabling use LASUN Cat6 twisted pair cable, which require the speed at 1Gbps and 10M/100M/1000Mbps, to meet the network information transmission and office automation application between branches.