3Com 3CNJ220-BLK - 100Mbps Ethernet Switch Lembar data - Halaman 7

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1. Ethernet Switch

3 C O M

I N T E L L I J A C K

™

3Com IntelliJack

Switch Setup

More cost-effective

than Category 5e

cabling, more secure

than a desktop hub

or switch

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

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 802.3af-

compliant device.

Figure 2

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.

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 opti-

mum quality and security, voice

traffic can be labeled high priority

and routed through its own VLAN.

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 (3CNJVOIPMOD-

NBX) to accept 48 VDC Power over

Ethernet.

Figure 3

Enterprise-ready, the NJ220 can be

discovered and controlled by most

SNMP-compliant management plat-

forms— including 3Com Network

Supervisor and HP OpenView.

Security features such as 802.1X net-

work log-in, MAC filtering, and

port-based rate limiting allow IT man-

agers to prevent network access by

unauthorized users.