Serv
er
10/1
00 M
bps
Swit
ch
Wirin
g clo
set
3Com
®
Powe
r ove
r Eth
ernet
Mi
dspa
n So
lutio
n
User
wor
ksite
3Com
Net
work Jack
3Com
NBX
®
pho
ne
Desktop
PC
Data
Powe
r
Data a
nd P
owe
r
3 C O M
®
N E T W O R K J A C K S D ATA S H E E T
2
6
Figure 1:
P802.3af-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
3Com Network Jack’s switched ports
prioritize voice and data traffic for
connected devices.
3
Models NJ100 and NJ200 forward
Power over Ethernet to a 3Com
NBX P802.3af Phone or other
P802.3af-compliant device.
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:
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.
Serv
er
3Com
®
Sup
erSta
ck
®
3 Sw
itch 4
400 P
WR
Wirin
g clo
set
User
wor
ksite
3Com
Net
work
Jack
3Com
NBX
®
P802
.3af P
hone
Desk
top P
C
3
4
5
1
2
3Com Network
Jack Setup
Figure 1
Figure 2
Figure 3
More cost-effective
than Category 5e
cabling, more secure
than a desktop hub
or switch
3Com NJ200 Network Jack
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.
Enterprise-ready, the NJ200 can be
discovered and controlled by most
SNMP-compliant management plat-
forms— including 3Com Network
Supervisor and HP OpenView.
