3Com 3CNJ220-BLK Data Sheet - Page 7

3 C O M ® I N T E L L I J A C K ™ S W I T C H FA M I LY D ATA S H E E T, U.S.-S TA N D A R D M O D E L S 3Com IntelliJack Switch Setup Figure 1: 802.3af-compliant Power over Ethernet network configuration with power forwarding to another device. 1 3Com SuperStack 3 Switch 4400 PWR (3C17205) delivers data and power over Category 5/5e cabling. 2 The switched ports of the 3Com IntelliJack Switch prioritize voice and data traffic for connected devices. 3 Models NJ220 and NJ100 forward Power over Ethernet to a 3Com NBX 802.3af Phone or other 802.3afcompliant device. 3CoMmid®spPoanweSor louvteiornEthernet 5 Server 10/100 Mbps Switch Wiring closet 4 3Com IntelliJack Switch Data Power Data and Power 3Com NBX® phone User worksite Figure 2 Desktop PC Server 3Com® SuperStack® 3 Switch 4400 PWR Wiring closet 1 3Com NBX® P802.3af Phone 3Com IntelliJack Switch 2 3 Desktop PC User worksite Figure 1 Figure 2: Retrofitting an existing Ethernet infrastructure to support Power over Ethernet. 4 3Com Power over Ethernet Multiport or Single-Port Midspan Solution (3CNJPSE24, 3CNJPSE) injects 48 VDC Power over Ethernet into existing 10/100 Mbps switched connections. 5 A prestandard 24-volt NBX phone can be modified with the 3Com NBX Phone Power Module (3CNJVOIPMODNBX) to accept 48 VDC Power over Ethernet. More cost-effective than Category 5e cabling, more secure than a desktop hub or switch 2 6 Figure 3: The 3Com Network Jack AC Power Supply (3CNJPSL) is required for LANs without Power over Ethernet capabilities. 6 LAN-facing downlink port and cabling are concealed behind the faceplate. Figure 3 3Com IntelliJack Switch NJ220 This "in the wall" managed switch comes bundled with software utilities that help streamline administration tasks and boost network security. Advanced switching and management features make it ideal for connecting networked telephony. Compatible phones can be powered from port 1, saving in wiring expense. For optimum quality and security, voice traffic can be labeled high priority and routed through its own VLAN. Enterprise-ready, the NJ220 can be discovered and controlled by most SNMP-compliant management platforms- including 3Com Network Supervisor and HP OpenView. Security features such as 802.1X network log-in, MAC filtering, and port-based rate limiting allow IT managers to prevent network access by unauthorized users.