3Com 3CNJ220-BLK - 100Mbps Ethernet Switch Gegevensblad - Pagina 3

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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

Figure 2: Mounting the IntelliJack switch NJ225 FX

into a raceway as commonly found in Germany.

3Com Network

48 VDC plug from

Jack/IntelliJack Switch

AC Power Supply (3CNJPSL)

S W I T C H FA M I LY D ATA S H E E T, INTERNATIONAL-S TA N D A R D M O D E L S

"Phoenix-style" AC connection

Figure 3: 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 IntelliJack switch prioritizes voice and data

traffic for connected devices.

3 Either model, NJ105 or NJ205, can forward

Power over Ethernet to a 3Com NBX

Phone or other 802.3af-compliant device.

Figure 1: Mounting

the IntelliJack switch

NJ105, NJ225

Four switched ports

are located out of the

way, along the bottom

edge of the unit

802.3af

Figure 4: Retrofitting an existing Ethernet

infrastructure to support Power over Ethernet.

4 3Com Power over Ethernet Multi-Port 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 modi-

fied with the 3Com NBX Phone Power Module

(3CNJVOIPMOD-NBX) to accept 48 VDC Power

over Ethernet.

Uplink connection for four-port

switch

To wiring

closet

Uplink connection for

optional pass-through

port

Optional

pass-through port