3Com NJ90 Network Jack Ethernet Switch - 3CNJ90

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Product Overview

These low-cost, unmanaged Ethernet switches mount in standard wall cutouts, expanding single-port LAN wall outlets into four Fast Ethernet network connections. They're designed to increase the number of network ports available at desktops-without the cost and inconvenience of running additional cables.


Manufacturer 3Com Corp
Mfg Part# 3CNJ90
SKU 10344539
UPC 662705466545
UPC 14 00662705466545
Total Number of Network Ports 4
Port/Expansion Slot Details 4 x Fast Ethernet Network
Product Type Ethernet Switch
Manufacturer Part Number 3CNJ90
Manufacturer Hewlett-Packard
Product Model NJ90
Product Name NJ90 Network Jack Ethernet Switch
Brand Name 3Com
Network Technology 10/100Base-TX
Ethernet Technology Fast Ethernet
Media Type Supported Twisted Pair
Package Contents Network JacksSets of mounting screwsRJ-45 coupler cables for LAN uplinkOne installation guide
Layer Supported 2
Height 2.3"
Width 4.5"
Depth 2.8"
Limited Warranty Lifetime
Tech Specs
Status Indicators Unit power Unit link
Number of Ports 4
Fast Ethernet Port Yes
Altitude 0 ft to 8000 ft Operating / 0 ft to 30000 ft Storage
Humidity 10% to 90% Operating / 5% to 95% Storage
Temperature 32°F (0°C) to 95°F (35°C) Operating / -22°F (-30°C) to 194°F (90°C) Storage
Product Type Ethernet Switch
Manufacturer Part Number 3CNJ90
Manufacturer Website Address www.3com.com
Manufacturer 3Com Corporation
Product Name NJ90 Network Jack Ethernet Switch
Brand Name 3Com
Connectivity Media Twisted Pair 10/100Base-TX
Additional Information Power over Ethernet: IEEE 802.3af-compliant, resistive or capacitive detection
Package Contents Network Jacks Sets of mounting screws RJ-45 coupler cables for LAN uplink One installation guide
Certifications & Standards Safety, emissions: FCC Class A CSA C-Tick NOM Building standards: NEMA-WD6 ANSI/TIA/EIA-568 ANSI/TIA/EIA-569 Networking standards: IEEE 802.3af IEEE 802.1p: QoS IEEE 802.3: Ethernet IEEE 802.3u: Fats Ethernet
System Requirements Local power supported: 3Com Network Jack AC Power Supply (3CNJPSL) required for LANs without Power over Ethernet capabilities
Layer Support 2
Switching Method Store-and-forward
Dimensions 2.30" Height x 4.50" Width x 2.75" Depth
Color Cream
Protocols DHCP
Standard Warranty Lifetime Limited
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