3com nj225 Guida Utente

The 3Com IntelliJack is a 4-port, managed Ethernet switch that fits into any 
standard electrical wall outlet or data port opening. It brings switching capabilities 
to any single port on an Ethernet network by allowing you to connect up to four 
networking devices, such as computer, printers, and Voice Over IP (VoIP) 
telephones to the network via one Ethernet port. You can connect an additional 
device to separate network segments through the same NJ225. This option, 
however, is not available on the NJ225FX. All ports feature 10/100 Mbps 
auto-negotiation.

Power to the IntelliJack is provided through one of the following methods:

• Over the network via an integrated switch that supports Power Over Ethernet 

• Over the network via an optional single-port or multi-port Ethernet power 

supply

• Locally via an optional local power supply

You can manage the NJ225 using the included Central Configuration Manager or 
Web Configuration Manager. You can also use a supported SNMP management 
console as you would with any managed device on your network, but greater 
management and control is available through the Configuration Manager 
software. Management features include:

• Device discovery

• Port status (state, duplex, speed)

• Statistics

• Port control (port state, flow control, AutoMDI(X), frame rate limit)

• 802.1P QoS/Priority

• 802.1Q compatible VLAN

• VLAN tag add/remove

• Firmware upgrade

• Rate limiting