3Com® network jack and IntelliJack switch are epochal product which can extend LAN connection only with installing simply in fixture type to wall side without separate cable construction. These network jack and IntelliJack switch can install current network connecting port by extension to four times rapidly and simply, and therefore these are ideal product to old buildings or the facilities which wiring construction is difficult. Also, they can save much of installation cost in almost every network environment. They can extend LAN port to four times cheaper and more comfortable than adding Ethernet cable. They support 4 10/100/1000Mbps switch connection LAN ports. NJ1000 supports via port option for telephony or additional LAN connection. It reduces work space clutter with ultra slim type & installation type design, and protects network connection from illegal operation, damage, and theft. It observes the standards of Ethernet, Fast Ethernet, VoIP(Voice over IP), IEEE 802.3af PoE, architecture and communication specs. It manages in center integrated type, and support bundle software and SNMP to minimize the intervention of user. It can use AC power which is enable in IEEE 802.3af PoE or local as power option.