Modular Fast Ethernet Switch User‘s Guide MODEL FS 726 MODEL FS 750
Trademarks NETGEAR® is a registered trademark of NETGEAR, Inc. in the United States and other countries. All other trademarks and registered trademarks are the property of their respective owners. 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.
quency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Customer Support For assistance with installing and configuring your NETGEAR system or with questions or problems following installation: • Check the NETGEAR Web page at http://www.NETGEAR.com. • Call Technical Support in North America at 1-888-NETGEAR. Our technicians are standing by to assist you 24 hours a day, 7 days a week.If you are outside North America, please refer to the phone numbers listed on the Support Information Card that shipped with your switch.
CONTENTS CHAPTER 1 Introduction Description Features Key Features Additional Features Package Contents 1-1 1-1 1-2 1-2 1-3 1-5 CHAPTER 2 Physical Description Front and Back Panels 10/100 Mbps RJ-45 Ports LED Mode Button and LED Descriptions Module Bays Auto Uplink Reset Button 2-1 2-1 2-3 2-4 2-5 2-5 2-7 CHAPTER 3 Applications Desktop Switching Segment Switching and Bridging from 10 Mbps to 100 Mbps Media Compatibility and Conversion 3-1 3-1 3-2 3-2 CHAPTER 4 Installation Preparing the Site Installing
CHAPTER 5 Troubleshooting Information Additional Troubleshooting Suggestions Network Adapter Cards Configuration Switch Integrity Auto Negotiation 5-1 5-3 5-3 5-3 5-3 5-3 APPENDIX A Technical Specifications Network Protocol and Standards Compatibility Data Rate Interface Performance Specifications Bandwidth Electrical Specifications Power Consumption Physical Specifications Environmental Specifications Electromagnetic Emissions Electromagnetic Susceptibility Safety Agency Approvals A-1 A-1 A-1 A-1 A-2 A-
APPENDIX C Cabling Guidelines Fast Ethernet Cable Guidelines Category 5 Cable Category 5 Cable Specifications Twisted Pair Cables Patch Panels and Cables Using 1000BASE-T Gigabit Ethernet over Category 5 Cable Overview Cabling Length Return Loss Near End Crosstalk (NEXT) Patch Cables Conclusion Fiber Optic Cables Fiber Cable Specifications Gigabit Cable Guidelines INDEX FIGURES C-1 C-1 C-2 C-3 C-3 C-5 C-5 C-5 C-6 C-6 C-6 C-7 C-7 C-7 C-8 C-8 C-8 I-1 contents vii
Figure 1-1. Package Contents 1-5 Figure 2-1. Front and Back Panels of the FS726 Switch 2-2 Figure 2-2. Front and Back Panels of the FS750 Switch 2-3 Figure 2-3. Creating Redundant Paths between Network Devices (Example 1) 2-6 Figure 2-4. Creating Redundant Paths between Network Devices (Example 2) 2-6 Figure 3-1. Example of Desktop Switching 3-1 Figure 3-2. Example of Segment Switching and Bridging 3-2 Figure 3-3. Example of Media Compatibility and Conversion 3-3 Figure 4-1.
Table 1-1. Key Features 1-2 Table 2-1. Front Panel LEDs 2-4 Table 4-1. Site Requirements 4-2 Table 5-1. Troubleshooting Information 5-1 Table B-1. 10/100 Mbps RJ-45 Plug and RJ-45 Connector Pin Assignments B-2 Table B-2. 100/1000 Mbps RJ-45 Plug and RJ-45 Connector Pin Assignments B-2 Table C-1. Electrical Requirements of Category 5 Cable C-3 Table C-2. Electrical Requirements of Fiber Optic Cable C-8 Table C-3.
CHAPTER 1: INTRODUCTION This installation guide describes the NETGEAR FS726 and FS750 Modular Fast Ethernet Switches. NETGEAR’s FS726 and FS750 are expandable, high-performance, IEEE-compliant network switches designed for users who require a large number of ports and want the high-speed capability of 10/100 switching to eliminate bottlenecks, boost performance, and increase productivity.
NETGEAR Model AG711T) or a fiber Gigabit Ethernet module (1000BASE-SX, NETGEAR Model AG711F). (Modules are not included with the switches.) With the advantage of this modularity you can: • Connect switches to each other with high-speed links • Link up to high-speed servers • Connect fiber and copper networks The NETGEAR FS726 Switch provides 24 shielded RJ-45 network ports, while the NETGEAR FS750 Switch provides 48 shielded RJ-45 network ports.
Additional Features The FS726 and FS750 Switches share the following features: • Uplink adaptability for either copper gigabit or fiber gigabit modules • Auto UplinkTM to automatically configure the RJ-45 ports for use with either straight-through or crossover cables to make the right connection • Non-blocking, wire-speed filtering and forwarding of the traffic on all ports • Scalability to meet your growing network needs, enabling performance to keep pace with port density • High-speed bandwidth over uplin
• Compliance with the IEEE802.3i Ethernet, IEEE802.3u Fast Ethernet standards, IEEE802.3ab Gigabit Ethernet, and IEEE802.3z Gigabit Ethernet. • LED indicators to show link, speed, activity, collision, and duplex for switch status and troubleshooting.
Package Contents Figure 1-1 shows the package contents of the FS726 and FS750 switches. Model FS726 or Model FS750 Switch (Model FS726 shown) Rubber footpads AC power cord Rack-mount kit Installation Guide Warranty Owner Registration Card Support Information Card Figure 1-1.
CHAPTER 2: PHYSICAL DESCRIPTION This chapter describes the hardware features of the FS726 and FS750 Switches. Topics include: • Front and back panels • 10/100 Mbps RJ-45 ports • LED Mode button and LEDs • Module bays (for copper or fiber Gigabit Ethernet modules) • Auto Uplink • Reset button Front and Back Panels Figure 2-1 shows the key components on the front and back panels of the FS726 Switch. Figure 2-2 shows the key components on the front and back panels of the FS750 Switch.
Front Panel of the Model FS726 Switch Link LEDs Mode LEDs 10/100 Mbps ports Module Bays Power LED LED Mode Button Reset Button Rear Panel of the Model FS726 Switch Fan Figure 2-1.
Front Panel of the Model FS750 Switch 10/100 Mbps ports Link LEDs Module Bays Mode LEDs Power LED LED Mode Button Reset Button Rear Panel of the Model FS750 Switch Figure 2-2. Front and Back Panels of the FS750 Switch 10/100 Mbps RJ-45 Ports As Figures 2-1 and 2-2 show, the FS726 Switch has 24 RJ-45 ports, while the FS750 Switch has 48 RJ-45 ports.
LED Mode Button and LED Descriptions LEDs on the front panels of the FS726 and FS750 Switches provide a quick and accurate display of port operation. Users can clearly identify the status of each port for link and by toggling the LED Mode button through the associated categories speed, activity, collision, and duplex mode . Table 2-1 summarizes the LEDs on the FS726 and FS750 Switches. A detailed description of the LEDs follows the table. Table 2-1.
Module Bays Two module bays on both switches allow you to upgrade as you go, whether you need gigabit uplink or additional port capacity. Each module bay will accept either a copper Gigabit Ethernet module (1000BASE-T, NETGEAR Model AG711T) or a fiber Gigabit Ethernet module (1000BASE-SX, NETGEAR Model AG711F) for high-speed connection to a server, to connect fiber and copper networks, or to extend your network backbone with high-speed links.
Model FS726 Switch FR314 Router Figure 2-3. Creating Redundant Paths between Network Devices (Example 1) Model FS726 Switch EN524 Hub FR314 Router Figure 2-4.
Reset Button A reset button is located on the front panels of the FS726 and FS750 Switches. The button allows you to reinitialize the switches after you either insert or remove a module from a module bay. To activate the Reset button, insert a small wire, such as a paper clip, into the hole and gently push. As the switch reinitializes, all of the LEDs will extinguish, then light up for approximately one second during the self-test, and then return to their normal state.
CHAPTER 3: APPLICATIONS The FS726 and FS750 Switches are designed to provide flexibility in configuring your network connections. Both switches can be used as stand-alone devices or used with 10 Mbps hubs, 100 Mbps hubs, or 10/100 Mbps switches. This chapter shows how the FS726 and FS750 Switches can be used in various network environments.
Segment Switching and Bridging from 10 Mbps to 100 Mbps The FS726 and FS750 Switches can be used to segment a network into multiple connected pieces to increase overall bandwidth and throughput. Both switch models can segment networks that are built with the NETGEAR DS508 and EN516 hubs, and can act as bridges connecting traditional 10BASE-T Ethernet networks to 100BASE-TX Fast Ethernet networks. Model FS726 Switch Model DS508 Hub Model FR314 Router Model EN516 Hub Figure 3-2.
Model FS726 Model FS509 Model FS518 MODEL Ethernet 10/100Mbps 1 Fast Ethernet Switch 2 3 10 11 4 5 6 7 8 17 15 16 18 1 00M Green=FDX,Yellow+COL Activity with Gigabit Ports Power 9 12 13 MODEL Switching Activity 18 PORT 14 4 10M 8 5 9PORT 10/100Mbps 1000M Normal/Uplink Green = FDX,Yellow = COL FS518T 17 On = Link Fast Ethernet Switch 100M 1 10M 2 3 4 5 Power 1 2 3 4 5 6 7 8 On = Link Normal/Uplink Rx/Tx 100M 6 7 8 Tx FS509 Rx 1000M Link 9 1
CHAPTER 4: INSTALLATION This chapter describes the installation procedures for the NETGEAR FS726 and FS750 Switches.
Preparing the Site Before you install your switch, be sure your operating environment meets the operating environment requirements in Table 4-1. Table 4-1. Site Requirements Characteristics Requirements Mounting Desktop installations: Provide a flat table or shelf surface. Rack-mount installations: Use a 19-inch (48.3-centimeter) EIA standard equipment rack that is grounded and physically secure. You also need the rack-mount kit supplied with your switch.
Installing the Switch You can install the NETGEAR FS726 and FS750 Switches on a flat surface or in a standard 19-inch rack. Installing the Switch on a Flat Surface 1. The switch ships with four self-adhesive rubber footpads. Affix one rubber footpad on each of the four concave spaces on the bottom of the switch. The rubber footpads cushion the switch against shock/vibrations. MODEL Figure 4-1.
Connecting Devices to the Switch The following procedure describes how to connect devices to the switch’s RJ-45 ports. When attaching devices to an FS726 or an FS750, the switch’s support for Auto Uplink technology allows you to attach devices using either straight-through or crossover cables (for more information about Auto Link‘ technology, refer to "Auto Uplink " on page 12). 7. Connect each device to an RJ-45 network port on the switch’s front panel (see Figure 4-2).
Using Gigabit Ethernet Modules The modularity of the FS726 and 750 Switches provides you with a highly adaptable network.. You not only can configure your network for copper and/or fiber gigabit uplinks, but you also can opt to expand your network gradually and affordably, as needed. Installing a Gigabit Ethernet module: a. Unscrew and remove the module cover plate. b. Insert the module into the slot, pressing firmly to seat the module. c. Tighten the module screws. d.
Checking the Installation Before you apply power: • Inspect the equipment thoroughly. • Verify that all cables are installed correctly. • Check cable routing to make sure cables are not damaged or create a safety hazard. • Be sure all equipment is mounted properly and securely. Applying AC Power The switches do not have an ON/OFF switch; the only method of applying or removing AC power is by connecting or disconnecting the power cord.
installation 4-7
CHAPTER 5: TROUBLESHOOTING This chapter provides guidance in troubleshooting the NETGEAR FS726 and FS750 Switches. Information includes: • Troubleshooting information table • Additional troubleshooting suggestions Troubleshooting Chart Table 5-1 lists symptoms, causes, and solutions of possible problems. Table 5-1. Troubleshooting Chart Symptom Cause Solution Power LED is off. No power is received Check the power cord connections for the switch at the switch. and the connected device.
Symptom Cause Solution Link LED is off for a port that has a connection. There is a problem with this connection. Make sure the cable is attached securely at both ends. Make sure the cable is not damaged. Check that the device being connected to is powered on and operating correctly. If the connection is to a workstation, make sure the workstation’s network interface is installed and configured correctly. File transfer is slow or performance degradation is a problem.
Additional Troubleshooting Suggestions If the suggestions in Table 5-1 do not resolve your problem, refer to the troubleshooting suggestions in this section. Network Adapter Cards Make sure the network adapter cards installed in the PCs are in working condition and the software driver has been installed. Configuration If problems occur after altering the network configuration, restore the original connections and determine the problem by implementing the new changes, one step at a time.
APPENDIX A: TECHNICAL SPECIFICATIONS This appendix provides technical specifications for the NETGEAR FS726 or FS750 Switches. Network Protocol and Standards Compatibility ISO/IEC 802-3i 10BASE-T IEEE 802.3u 100BASE-TX IEEE 802.3ab 1000BASE-T IEEE 802.3z 1000BASE-SX IEEE 802.3x Flow Control Data Rate 10 Mbps differential Manchester encoded, IEEE 802.
Performance Specifications Frame filter rate: 14,800 frames/second, maximum on 10 Mbps port (64B packets) 148,000 frames/second, maximum on 100 Mbps port (64B packets) 1,480,000 frames/second, maximum on 1000 Mbps port (64B packets) Frame forward rate: 14,800 frames/second, maximum on 10 Mbps port (64B packets) 148,000 frames/second, maximum on 100 Mbps port (64B packets) 1,480,000 frames/second, maximum on 1000 Mbps port (64B packets) 10/100 buffer memory: 8 MB for 16 ports Gigabit buffer memory: 2 BM p
Electrical Specifications Power Consumption: FS726 40W maximum FS750 60W maximum Physical Specifications Dimensions: Weight: FS726 W 440 mm (17.3") D 205 mm (8.1") H 43 mm (1.6") 3.2 Kg (7.0 lbs) FS750 W 440 mm (17.3") D 205 mm (8.1") H 86 mm (3.4") 4.3 Kg (9.
Electromagnetic Emissions Meets requirements of: CE mark, commercial FCC Part 15, Subpart B, Class A EN 55024 (CISPR 22), Class A VCCI Class 1A C-tick Electromagnetic Susceptibility CE mark, commercial Electrostatic discharge (ESD): IEC 801-2, Level 2/3 Radiated electromagnetic field: IEC 801-3, Level 2 Electrical fast transient/burst: IEC 801-4, Level 2 Electrical surge: IEC 801-5, Level 1/2 Safety Agency Approvals CE mark, commercial UL/cUL listed (UL 1950) CSA certified (CSA 22.
APPENDIX B: CONNECTOR PIN ASSIGNMENTS This appendix provides information about the RJ-45 plug and the RJ-45 connector used for the NETGEAR FS726 and FS750 Switches. RJ-45 Plug and RJ-45 Connector In a Fast Ethernet network, it is important that all 100BASE-T certified Category 5 cabling use RJ-45 plugs. The RJ-45 plug accepts 4-pair UTP or shielded twisted-pair (STP) 100 ohm cable and connects into the RJ-45 connector.
Table B-1 lists the pin assignments for the 10/100 Mbps RJ-45 plug and the RJ-45 connector. Table B-1.
Duplex SC Plug and Duplex SC Connector The duplex SC connector connects stations, hubs, and switches that support the 1000BASE-SX fiber interface. Each fiber link needs a clearly defined, external crossover. In other words, the transmit port of one interface must be wired to the receive port of the opposite interface and vice versa. Fiber cables must be connected in this manner to transmit and receive data. The duplex SC connector and duplex SC plug are illustrated in Figure B-2. TX RX 8895FA Figure B-2.
APPENDIX C: CABLING GUIDELINES This appendix provides specifications for cables used with the FS726 and FS750 Switches. Fast Ethernet Cable Guidelines Fast Ethernet uses UTP cable, as specified in the IEEE 802.3u standard for 100BASE-TX. The specification requires Category 5 UTP cable consisting of either two-pair or fourpair twisted insulated copper conductors bound in a single plastic sheath. Category 5 cable is certified up to 100 MHz bandwidth.
Category 5 Cable Category 5 distributed cable that meets ANSI/EIA/TIA-568-A building wiring standards can be a maximum of 328 feet (ft) or 100 meters (m) in length, divided as follows: • 20 ft (6 m) between the hub and the patch panel (if used) • 295 ft (90 m) from the wiring closet to the wall outlet • 10 ft (3 m) from the wall outlet to the desktop device The patch panel and other connecting hardware must meet the requirements for 100 Mbps operation (Category 5). Only 0.5 inch (1.
Category 5 Cable Specifications Table C-1 lists the electrical requirements of Category 5 UTP cable. Table C-1. Electrical Requirements of Category 5 Cable Specifications Category 5 Cable Requirements Number of pairs Four Impedance 100 Ω ± 15% Mutual capacitance at 1 KHz ≤5.6 nF per 100 m Maximum attenuation (dB per 100 m, at 20° C) NEXT loss (dB minimum) at 4 MHz: 8.2 at 31 MHz: 11.7 at 100 MHz: 22.
Figure C-1 illustrates straight-through twisted pair cable. 1 1 2 2 Rx Tx A B 3 3 6 6 Rx Tx 736EA Key: A = Uplink or MDI port (as on a PC) B = Normal or MDI-X port (as on a hub or switch) 1, 2, 3, 6 = Pin numbers Figure C-1. Straight-Through Twisted-Pair Cable Figure C-2 illustrates crossover twisted pair cable. 1 1 2 2 Rx Rx B B Tx 3 3 6 6 Tx Key: B = Normal or MDI-X port (as on a hub or switch) 1, 2, 3, 6 = Pin numbers Figure C-2.
Patch Panels and Cables If you are using patch panels, make sure that they meet the 100BASE-TX requirements. NETGEAR recommends Category 5 UTP cable for all patch cables and work area cables to ensure that your UTP patch cable rating meets or exceeds the distribution cable rating. To wire patch panels, you need two Category 5 UTP cables with an RJ-45 plug at each end, as shown in Figure C-3. 1 2 1 87654321 87654321 Figure C-3.
Cabling The 1000BASE-T product is designed to operate over Category 5 cabling. To further enhance the operation, the cabling standards have been amended. The latest standard is Category 5e, which defines a higher level of link performance than is available with Category 5 cable. If installing new cable, we recommend using Category 5e cable, since it costs about the same as Category 5 cable.
Factors that affect the return loss are: • The number of transition points, as there is a connection via an RJ-45 to another connector, a patch panel, or device at each transition point. • Removing the jacket that surrounds the four pairs of twisted cable. It is highly recommended that, when RJ-45 connections are made, this is minimized to 1-1/4 inch (32 mm). • Untwisting any pair of the twisted-pair cabling. It is important that any untwisting be minimized to 3/8 inch (10 mm) for RJ-45 connections.
Fiber Optic Cables In North America, use EIA-569-A horizontal 62.5/125 µm multimode optical fiber cable (ANSI/EIA/TIA-492AAAA). Internationally, use ISO/IEC 11801 62.5/125 µm multimode optical fiber cable (IEC 793-2 type A1b, with 1.0db/km attenuation and 500 MHz/km bandwidth). Refer to Table C-2 for the minimum requirements of fiber optic cable. Fiber Cable Specifications Table C-2 lists the electrical requirements of fiber cable. Table C-2.
A Applications Desktop Switching, 3-1 Segment Switching and Bridging from Mbps to 100 Mbps, 3-2 Applying AC Power, 4-6 Auto Uplink, 2-5 Features, 1-2 Front and Back Panels, 2-1 Fiber Optic Cables, C-8 Fiber Cable Specifications, C-8 G Gigabit Cable Guidelines, C-8 C I Cabling guidelines Fast Ethernet Cable Guidelines, C-1 Category 5 Cable, C-2 Category 5 Cable Specifications, C-3 Twisted Pair Cables, C-3 Patch Panels and Cables, C-5 Using 1000BASE-T Gigabit Ethernet over Category 5 Cable, C-5 Cabling,
P T Package Contents, 1-5 Patch Panels and Cables, C-5 Physical Description Front and Back Panels, 2-1 10/100 Mbps RJ-45 Ports, 2-3 LED Descriptions, 2-4 Module Bays, 2-5 Auto Uplink, 2-5 Preparing the Site, 4-2 Technical Specifications Network Protocol and Standards Compatibility, A-1 Data Rate, A-1 Interface, A-1 Electrical Specifications, A-3 Physical Specifications, A-2 Environmental Specifications, A-3 Electromagnetic Emissions, A-4 Electromagnetic Susceptibility, A-4 Safety Agency Approvals, A-4 Pe
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