NetComm NP3005 User Manual
Contents
Introduction ....................................................................................................................3
Gigabit Ethernet Technology ............................................................................ 4
Switching Technology ...................................................................................... 4
Features ........................................................................................................................ 5
Package Contents ......................................................................................................... 6
Front Panel .................................................................................................................... 7
LED Indicators ................................................................................................. 7
Rear Panel .................................................................................................................... 8
RJ-45 Network ports ........................................................................................ 9
Twisted pair cables.......................................................................................... 9
Straight and crossover cable configuration .................................................. 10
Application examples ................................................................................................... 11
Basic Desktop Network Switch ...................................................................... 11
Cascading the switch .................................................................................... 12
Preparation before connecting your switch ................................................................ 13
Attaching computers to the switch ................................................................. 14
Connecting power to the switch .................................................................... 14
Verifying installation ....................................................................................... 14
NB3005 Specifications ................................................................................................ 15
Registering your NetComm Product ........................................................................... 16
Contact Information ....................................................................................... 16
C-Tick Mark declaration of conformance ....................................................... 16
Warning .......................................................................................................... 16
Trademarks and Notices ............................................................................... 16
Product Warranty ............................................................................................ 19
Limitations of Warranty .................................................................................. 19
www.netcomm.com.au Rev.1 - YML671
Page 2 NP3005 - 5 Port Gigabit Switch
Introduction
Congratulations on your purchase of the NetComm 5-Port 1000BASE-T Gigabit Ethernet
Switch. The following guide will take you through the installation and application of your
Switch as well as provide information about Gigabit Ethernet and switching technology.
Rev.1 - YML671 www.netcomm.com.au
NP3005 - 5 Port Gigabit Switch Page 3
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure,
format, and support for CSMA/CD protocol, full duplex, flow control, and management objects,
but with a tenfold increase in theoretical throughput over 100-Mbps Fast Ethernet and a
hundredfold increase over 10-Mbps Ethernet. Since it is compatible with all 10-Mbps and 100Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without
wasting a company's existing investment in hardware, software, and trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to coping with
the network bottlenecks that frequently develop as computers and their busses get faster and
more users use applications that generate more traffic. Upgrading key components, such as your
backbone and servers to Gigabit Ethernet can greatly improve network response times as well as
significantly speed up the traffic between your subnets.
Gigabit Ethernet supports video conferencing, complex imaging, and similar data-intensive
applications and, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted
with Gigabit Ethernet NIC's are able to perform 10 times the number of operations in the same
amount of time.
Switching Technology
Another key development pushing the limits of Ethernet technology is in the field of switching
technology. A switch bridges Ethernet packets at the MAC address level of the Ethernet
protocol transmitting among connected Ethernet or fast Ethernet LAN segments.
Switching is a cost-effective way of increasing the total network capacity available to users on a
local area network. A switch increases capacity and decreases network loading by making it
possible for a local area network to be divided into different segments which don't compete with
each other for network transmission capacity, giving a decreased load on each.
The switch acts as a high-speed selective bridge between the individual segments. Traffic that
needs to go from one segment to another is automatically forwarded by the switch, without
interfering with any other segments. This allows the total network capacity to be multiplied,
while still maintaining the same network cabling and adapter cards.
Switching LAN technology is a marked improvement over the previous generation of network
bridges, which were characterized by higher latencies. Routers have also been used to segment
local area networks, but the cost of a router and the setup and maintenance required make
routers relatively impractical. Today's switches are an ideal solution to most local area network
congestion problems.
www.netcomm.com.au Rev.1 - YML671
Page 4 NP3005 - 5 Port Gigabit Switch
Features
The NetComm 5-Port 1000BASE-T Gigabit Ethernet Switch has been designed for easy
installation and high performance in an environment where traffic on the network and the
number of users increase continuously.
■ 5 x 1000Base-T Gigabit Ethernet ports
■ Supports Auto-Negotiation for 10/100/1000Mbps and duplex mode
■ Supports Auto-MDIX for each port
■ Support Full/Half duplex transfer mode for 10 and 100Mbps
■ Support Full duplex transfer mode for 1000Mbps
■ Full wire speed reception and transmission
■ Store-and-Forward switching method
■ Supports 8K absolute MAC addresses
■ Supports 256KBytes RAM for data buffering
■ Extensive front-panel diagnostic LEDs
■ IEEE 802.3x flow control for full-duplex
■ Back pressure flow control for half-duplex
Rev.1 - YML671 www.netcomm.com.au
NP3005 - 5 Port Gigabit Switch Page 5
Package Contents
Open the shipping carton of the Switch and carefully unpack its contents. The carton should
contain the following items:
■ One 5-Port 1000BASE-T Gigabit Ethernet Switch
■ Four rubber feet with adhesive backing
■ One external power adapter
■ This Guide
If any item is found missing or damaged, please contact your reseller for replacement.
www.netcomm.com.au Rev.1 - YML671
Page 6 NP3005 - 5 Port Gigabit Switch
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