NETGEAR SW502, SW507 Installation Manual
Installation Guide
for the Model SW502
and Model SW507
Ethernet Switches
NETGEAR, Inc.
A Bay Networks Company
48105 Warm Springs Blvd.
Fremont, CA 94539 USA
June 1996
Document Number M-SW500NA-0
© 1996 by NETGEAR, Inc. All rights reserved.
Trademarks
NETGEAR and Bay Networks are trademarks of Bay Networks, Inc.
Other brand and product names are registered trademarks or trademarks of their respective holders.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves the right to make
changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s)
described herein.
Federal Communications Commission (FCC) Statement
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15
of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy. If it is not installed and used in accordance with the instruction manual, it may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case
users will be required to take whatever measures may be necessary to correct the interference at their own expense.
EN 55 022 Declaration of Conformance
This is to certify that the NETGEAR Model SW502 and Model SW507 Ethernet Switches are shielded against the
generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a.
Conformity is declared by the application of EN 55 022:1987 Class A (CISPR 22:1985/BS 6527:1988).
WARNING: This is a Class A product. In a domestic environment, this product may cause radio
interference, in which case, the user may be required to take appropriate measures.
Bestätigung des Herstellers/Importeurs
Es wird hiermit bestätigt, daß das NETGEAR Model SW502 and Model SW507 Ethernet Switches gemäß der im BMPTAmtsblVfg 243/1991 und Vfg 46/1992 aufgeführten Bestimmungen entstört ist. Das vorschriftsmäßige Betreiben einiger
Geräte (z.B. Testsender) kann jedoch gewissen Beschränkungen unterliegen. Lesen Sie dazu bitte die Anmerkungen in der
Betriebsanleitung.
Das Bundesamt für Zulassungen in der Telekommunikation wurde davon unterrichtet, daß dieses Gerät auf den Markt
gebracht wurde und es ist berechtigt, die Serie auf die Erfüllung der Vorschriften hin zu überprüfen.
Certificate of the Manufacturer/Importer
It is hereby certified that the NETGEAR Model SW502 and Model SW507 Ethernet Switches have been suppressed in
accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992. The operation of some
equipment (for example, test transmitters) in accordance with the regulations may, however, be subject to certain
restrictions. Please refer to the notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on the market and
has been granted the right to test the series for compliance with the regulations.
ii
Voluntary Control Council for Interference (VCCI) Statement
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the 1st category (information equipment to be used in commercial and/or industrial areas) and
conforms to the standards set by the Voluntary Control Council for Interference by Data Processing Equipment and
Electronic Office Machines that are aimed at preventing radio interference in commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interference may be
caused to equipment such as radios and TV receivers.
Customer Support
For assistance with installing and configuring your NETGEAR system or with post-installation questions or problems,
contact your point of purchase representative.
To contact customer support or to purchase additional copies of this document and publications for other NETGEAR
products, you can contact NETGEAR at the following numbers:
• Phone:
− U.S./Canada: 1-800-211-2069
− Japan: 0031-1-26133
− Germany: 0130-8-23776
• Fax:
− U.S./Canada: 510-498-2609
World Wide Web
NETGEAR maintains a World Wide Web Home Page that you can access at the universal resource locator (URL)
http://NETGEAR.baynetworks.com/home. A direct connection to the Internet and a Web Browser such as Mosaic or
Netscape are required.
iii
Contents
Chapter 1 Introduction
Overview of the Switch................................................................ ................................................... 1-1
Features ..........................................................................................................................................1-2
Chapter 2 Physical Description
Front Panel ................................ ................................................................ ..................................... 2-1
Ethernet Ports............................................................................................................................2-2
RJ-45 Ports, Normal/Uplink Push Button and 100M-Port 2/Port 7 LED............................... 2-2
AUI Port.............................................................................................................................. 2-3
BNC Port................................................................................................ ............................. 2-3
Half/Full Duplex Switches......................................................................................................... 2-3
Indicator Panel........................................................................................................................... 2-4
Power LED.......................................................................................................................... 2-4
Port Status LEDs.................................................................................................................. 2-4
Diagnostics Push Button................................................................ ............................................ 2-5
Rear Panel....................................................................................................................................... 2-6
Chapter 3 Installation
Site Preparation............................................................................................................................... 3-1
Package Contents............................................................................................................................ 3-1
Installing a Switch ................................ ................................ .......................................................... 3-2
Installing the Switch on a Flat Surface....................................................................................... 3-2
Installing the Switch in a Rack .................................................................................................. 3-2
Connecting Devices to the Switch................................................................................................... 3-4
Verifying Installation...................................................................................................................... 3-6
Chapter 4 Troubleshooting
Front Panel Indicators..................................................................................................................... 4-1
Half/Full Duplex Switch................................................................................................................. 4-1
System Diagnostics ................................ ................................ ......................................................... 4-2
Installation................................................................................................................................. 4-2
Cabling...................................................................................................................................... 4-2
Network Adapter Cards ............................................................................................................. 4-2
Configuration ............................................................................................................................ 4-2
Switch Integrity......................................................................................................................... 4-2
Contents v
Chapter 5 Configuration Examples
Ethernet Technology................................................................ ....................................................... 5-1
Examples........................................................................................................................................ 5-2
Bridging from 10BASE-T Ethernet Networks................................ ............................................ 5-2
Multiport Bridges with High-bandwidth Backbone.................................................................... 5-3
High-bandwidth File Server....................................................................................................... 5-5
High-speed Link between Switches ........................................................................................... 5-6
Appendix A Technical Specifications
General Specifications.................................................................................................................... A-1
Appendix B Connector Pin Assignments
RJ-45 Connector.............................................................................................................................B-1
AUI Connector................................................................................................................................B-2
BNC Connector ................................ ................................................................ ..............................B-3
BNC T-Connector and 50
Appendix C Cabling Specifications
Ω Terminator ................................................................ .........................B-3
Cable Specifications........................................................................................................................ C-1
Twisted-pair Cables ........................................................................................................................C-2
Coaxial 50
Ω Cable......................................................................................................................... C-3
AUI Cable.......................................................................................................................................C-3
Index
vi Contents
Chapter 1 Introduction
Congratulations on your purchase of the NETGEAR Model SW502 2-Port 10/100 Mbps Ethernet
switch or the Model SW507 7-Port 10/100 Mbps Ethernet switch. These switches are part of the
NETGEAR 500 Series product family. The switches allow simultaneous transmission of multiple
packets through an internal high-speed data channel and can partition a network more efficiently than
bridges or routers in most environments.
This guide is for individuals who have the following background and experience:
• Working knowledge of basic Ethernet and network management concepts and terminology
• Familiarity with the 10BASE-T and 100BASE-T specifications
• Working knowledge of tools and procedures for installing and operating sensitive electronic
equipment
Overview of the Switch
The Model SW502 and Model SW507 switches both increase bandwidth. To provide 10 Mbps
transmission, the Model SW502 switch provides one RJ-45 station port and the Model SW507 switch
provides up to six RJ-45 ports. Both switches have a 10/100 Mbps port that creates a high-throughput
connection to a backbone or server. In addition to partitioning an overloaded network, these switches
provide a link between traditional 10BASE-T and the faster 100BASE-TX networks. The switches
can be configured to operate in either full-duplex or half-duplex data transfer mode to support the
interconnection requirements of other high-speed devices.
The switches incorporate a non-blocking cross-bar switching matrix that allows simultaneous
transport of multiple packets across the switching hub. Up to seven switching paths can be established
at the same time, with each path crossing two ports. This switching hub performs switching that sends
a packet to the appropriate port according to the destination address scanned from the packet header.
This technique reduces the latency of packet transmission to 20
approximately 800
before it can be forwarded, the Model SW502 and Model SW507 switches deliver a major
improvement in the performance of your network.
As a device functioning on the media access control (MAC) layer, the Model SW502 and Model
SW507 switches are protocol-independent, and are compatible with IEEE802.3, IEEE802.3u, TCP/IP,
NetWare, DECnet, and XNS protocols. They can be easily configured in most environments as a
standalone device to form a workgroup consisting of two to seven subnetworks or workstations, as a
Introduction 1-1
µs for a bridge or 1800 µs for a router, both of which must store the entire packet
µs or less. Compared to
Installation Guide for the Model SW502 and Model SW507 Ethernet Switches
simple twisted-pair LAN, or as a multiport bridge. With its low port-to-port latency and highforwarding efficiency, the Ethernet switches can also be connected to other switching hubs.
The maximum distance between end-nodes is not restricted as it was with the traditional repeaters. By
dividing your network into smaller and more manageable segments, each linked to the larger network
with a switch, the maximum distance for communications between end-nodes is unlimited.
Features
The key features of the NETGEAR Model SW502 and Model SW507 switches are:
• Conforms to the ISO/IEC 8802-3 and ANSI/IEEE 802.3 10BASE-T standard.
• Conforms to the IEEE 802.3u 100BASE-TX standard.
• Improves network productivity by segmenting network traffic or providing private 10 Mbps
access to the desktop or server, with no changes to the software or network interface.
− One 10 Mbps Ethernet port on the Model SW502 switch provides Bayonet-Neil Councelman
connector (BNC), attachment unit interface (AUI), or unshielded twisted-pair (UTP)
interfaces.
− Six 10 Mbps UTP Ethernet ports on the Model SW507 switch.
• One additional UTP port running at 10 Mbps or 100 Mbps that can be configured as Normal
(MDI-X) or Uplink (MDI).
• Switch-selectable half/full duplex. Doubles the throughput of point-to-point connections by
enabling individual ports to transmit and receive concurrently when the other end also supports
full-duplex.
• Adaptive forwarding modes. Automatically switches the forwarding mode from cut-through
(minimizes network delay) to fragment-free cut-through, to store-and-forward (minimizes bad
packets) as network gets increasingly busy.
• Minimum latency of packet transmission (leading edge to leading edge) less than 20 µs.
• Address learning function to build the routing information database. Routing table contains 4 K
entries per port to store MAC addresses for attached network nodes.
• Wire-speed filtering and forwarding. Provides “traffic cop” function by directing traffic to the
appropriate route without slowing down the traffic.
• Provides a 64 Kbyte buffer for each 10 Mbps port and a 160 K buffer for the 100 Mbps port.
1-2 Introduction
Installation Guide for the Model SW502 and Model SW507 Ethernet Switches
• Non-blocking cross-bar switching matrix allows concurrent operation of up to seven Ethernet
segments on the Model SW507 switch in full-duplex mode.
• Backpressure to alleviate congestion. Reduces network congestion by slowing down incoming
traffic from other segments, when appropriate, by generating collision signals to those segments.
• Microprocessor-based design to monitor network utilization, collisions, and link status.
• A comprehensive LED indicator panel for monitoring overall switching condition and individual
port status.
For further functional descriptions of the switch, refer to Chapter 5, “Configuration Examples.”
Introduction 1-3
Chapter 2 Physical Description
This chapter describes the hardware features of the NETGEAR Model SW502 and Model SW507
switches.
Front Panel
For easier management and control of the switches, familiarize yourself with the ports, display
indicators, diagnostics push button, and panel switches illustrated in Figure 2-1 and Figure 2-2.
1 = BNC, AUI, RJ-45 Ethernet ports, Normal/Uplink push button, and 100M-port 2 LED
2 = Half/Full duplex switch
3 = Power LED
4 = Port status LEDs
5 = Diagnostics push button
Figure 2-1. Front panel of the Model SW502 switch
Physical Description 2-1
Installation Guide for the Model SW502 and Model SW507 Ethernet Switches
1 = RJ-45 Ethernet ports, Normal/Uplink push button, and 100M-port 7 LED
2 = Half/Full duplex switch
3 = Power LED
4 = Port status LEDs
5 = Diagnostics push button
Figure 2-2. Front panel of the Model SW507 switch
Ethernet Ports
The Model SW502 switch is equipped with one 10 Mbps port and one 10/100 Mbps port for end-node
or daisy-chain connections. The 10 Mbps port supports three communication media, BNC, AUI, and
UTP.
On the Model SW507 switch, six 10 Mbps RJ-45 Ethernet ports and one 10/100 Mbps RJ-45 ports
can be used for either end-node or daisy-chain connection.
RJ-45 Ports, Normal/Uplink Push Button and 100M-Port 2/Port 7 LED
The network access speed for the 10/100 Mbps RJ-45 port on both systems is automatically sensed
and displayed on the front panel by the 100M-port 7 LED. A server or workstation can be connected
to any of the station ports, but only one Fast Ethernet port is provided on the front panel. The 100M
port is Port 2 on the Model SW502 switch and Port 7 on the Model SW507 switch. By connecting
this Fast Ethernet port to a Fast Ethernet switch or hub, you can create a Fast Ethernet backbone of
fast servers.
The 10/100 Mbps port and the 10 Mbps port on the Model SW502 switch are equipped with a
Normal/Uplink push button (Figure 2-3) to configure the port for direct server connection or for
connecting with a switch or hub to form an Ethernet backbone. The push button must be set in the
2-2 Physical Description
Using the Model SW502 and SW507 Ethernet Switches
Normal position when connecting to a server or computer. For backbone connection to another switch
or hub, the push button must be set in the Uplink position.
Figure 2-3. Fast Ethernet port and Normal/Uplink push button
on the Model SW502 and Model SW507 switches
AUI Port
The AUI port on the Model SW502 switch allows the 10 Mbps port to be connected to an external
transceiver for network extension. Inter-repeater fiber transceivers for 10 BASE-F or FOIRL are
examples of external transceivers. For AUI connector pin assignments, refer to Appendix B,
“Connector Pin Assignments.” For cabling specifications, refer to Appendix C, “Cabling
Specifications.”
BNC Port
The BNC connector, similar to the AUI and RJ-45 ports on the Model SW502 switch, provides
10 Mbps access for end-node or daisy-chain connections. For additional information about the BNC
connector, the BNC T-connector, and the 50
Ω BNC terminator that are used to connect other devices
through this port, refer to Appendix B, “Connector Pin Assignments,” and Chapter 3, “Installation.”
For cabling specifications, refer to Appendix C, “Cabling Specifications.”
Half/Full Duplex Switches
The communication mode can be set to either half-duplex or full-duplex operation. One Half/Full
duplex switch is assigned to each port on the Model SW502 and Model SW507 switches.
Physical Description 2-3
Installation Guide for the Model SW502 and Model SW507 Ethernet Switches
Full-duplex mode is supported for all ports. Full-duplex operation only applies to point-to-point
access (such as when a switch is connected to a workstation, a server, or another switch). Repeaters
and hubs use a common collision domain for all communications. When connecting to a repeater or
hub, the associated port should be set to half-duplex operation. When network connection is through
the BNC or AUI interfaces, the Model SW502 switch will operate in half-duplex mode only.
Indicator Panel
The indicator panels on the Model SW502 and Model SW507 switches can be used to monitor and
diagnose the switches. The panel includes a Power LED and port status LEDs.
Power LED
The Power LED indicates if the switch is receiving power (refer to Table 2-1).
Table 2-1. Power LED
Label Color Activity Description
Power Green Steady Light Switch is receiving power and system is running.
No Light Power is disconnected.
Port Status LEDs
The port status LEDs display the status of the port connections and indicate the result of the
diagnostics tests (refer to Table 2-2). These LEDs indicate when packets are being transmitted or
received, when a valid link has been established, or when a collision is occurring. When the LEDs
blink, they correspond to the amount of packets that are transmitted or received and the amount of
collision at the port.
Collisions occur when two or more devices connected to the switch attempt to transmit data at the
same time on the network. When a collision occurs, devices pause and then transmit again after
waiting a specified time. Because these times differ among devices, successive collisions become
increasingly unlikely.
2-4 Physical Description
Using the Model SW502 and SW507 Ethernet Switches
Table 2-2. Port status LEDs
Label Color Activity Function
Collision Orange Blinking light Indicates collision during packet transmission on the port.
Transmit Green Blinking light Indicates packet transmission on the port.
Receive Green Blinking light Indicates packets are being received on the port.
Link Green Steady light Indicates a valid link is established on this port.
Light off No valid link is established on this port. For troubleshooting
procedures, refer to Appendix D, “Troubleshooting.”
100M Green Steady light Port is operating at 100 Mbps.
Light off Port is operating at 10 Mbps.
Diagnostics Push Button
The Diagnostics push button initiates the self-diagnostics test to determine the status of the system
components of the switch. The diagnostic test will automatically start when the system is powered on.
To start the diagnostic test after the switch has started operation, press the Diagnostics push button for
two seconds and then release.
After the self-diagnostic test starts, it will continue until all of the components of the ports are tested.
On completion of the diagnostic testing process, the LEDs will continue to blink (refer to Table 2-3).
This blinking indicates the corresponding port components that have failed. The blinking will
continue until the failed port has been repaired.
Table 2-3. Port Diagnostic Test
LED Label Color Activity Diagnostic Display Mode
Collision Orange Blinking light Failed port I.C. test.
Transmit Green Blinking light Failed output queue RAM test.
Receive Green Blinking light Failed input queue RAM test.
Link Green Blinking light Failed routing table RAM test.
For troubleshooting procedures,
refer to Appendix D, “Troubleshooting.”
Physical Description 2-5
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