SwitcHub-2s &INO
Installation Manual SwitcHub-2s 2-Port Ethernet Switching Hub for 10BASE-T/100BASE-TX
Copyright (c) 1996 by Accton Technology Corporation. All rights reserved. No part of this document may be copied or reproduced in any form or by any means without the prior written consent of Accton Technology Corporation. Accton makes no warranties with respect to this documentation and disclaims any implied warranties of merchantability, quality, or fitness for any particular purpose. The information in this document is subject to change without notice.
About this Guide This guide is designed for the experienced network installer. It describes how to install and operate Accton’s Fast SwitcHub-2s Ethernet switch. After reading this manual, you should be able to use the front display panel and configure options to manage all your network connections.
Package Contents Carefully unpack the contents of the package and verify them against the checklist given below. Package Checklist æ SwitcHub-2s (Model No. EH3001-TX) æ AC power cord æ Installation manual æ Owner registration card Please inform your dealer immediately should there be any wrong, missing, or damaged parts. If possible, retain the carton, including the original packing materials. Use them again to repack the unit in case there is a need to return it for repair.
Quick Installation The SwitcHub-2s contains 2 Ethernet ports, each of which supports 100BASE-TX or 10BASE-T connections, operating at full or half-duplex. The smart design built into the front display panel and configure options, provides a friendly interface that simplifies installation and network troubleshooting. If you are already familiar with basic network operations, you should be able to install this switch as described below: 1. Unpack the SwitcHub-2s. 2.
Contents Chapter 1: Introduction........................................................... 1-1 Switching Technology...............................................................................................1-1 Accton’s Smart Extender (The Fast SwitcHub-2s)....................................................1-2 Features of the Fast SwitcHub-2s..............................................................................1-4 Chapter 2: Hardware Description ..........................................
SwitcHub-2s User’s Guide Setting the Display Mode ..........................................................................................3-5 Selections Available .............................................................................................3-6 Bandwidth Utilization.....................................................................................3-6 Packet Forwarding Ratio.................................................................................3-6 Packet Filtering Ratio .........
SwitcHub-2s User’s Guide Appendix E: Product Support Services ................................ E-1 Product Registration ..................................................................................................E-1 Problem Report .........................................................................................................E-1 Hardware Repair Service...........................................................................................E-1 Software Update and Upgrade Service............
Chapter 1: Introduction Switching Technology The Ethernet Switch allows simultaneous transmission of multiple packets via an internal high-speed data channel. This means that it can partition a network more efficiently than bridges or routers in most environments. The Ethernet Switch is therefore fast being recognized as one of the most important building blocks for today’s networking technology.
SwitcHub-2s User’s Guide Accton’s Smart Extender (The Fast SwitcHub-2s) Accton’s Smart Extender can boost network bandwidth fourfold, depending on your configuration (i.e., if running at 100Mbps and full-duplex operation for both ports). It provides two 10/100 Mbps RJ-45 ports (set at full or half-duplex) to connect to either a subnetwork, or directly to a server or key workstation.
SwitcHub-2s User’s Guide Traditional bridges and routers use a switching method called store-andforward in which the entire frame must be received before the bridge can perform a table look-up for the destination node and forward the packet to the corresponding port. As a result, each packet is delayed by approximately 800 microseconds. It may be necessary to use store-and-forward when a lot data errors are occurring over the network, or when connecting to very slow devices.
SwitcHub-2s User’s Guide Features of the Fast SwitcHub-2s • Conforms to the IEEE 802.3 and IEEE 802.
SwitcHub-2s User’s Guide • Provides frame filtering and forwarding functions for each port, which are capable of filtering and forwarding 100% of all Ethernet packets at line speed • Provides a 160K byte buffer per port • Routing table contains 4K entries per port to store node MAC addresses • Uses fast hashing scheme to retrieve information from routing table when making routing decisions • An indicator panel for configuring the system or monitoring the overall condition of the switch, including utiliza
Chapter 2: Hardware Description Accton’s SwitcHub-2s is a highly reliable network switch that complies with IEEE 802.3 (10BASE-T) and IEEE 802.3u (100BASE-TX) specifications. This switching hub delivers superior performance compared to the bridge and router solution, and at a much lower cost. By confining local traffic to the originating segment, and only forwarding cross-segment traffic to the other port, this hub meets the requirements for Ethernet and IEEE 802.3 networks.
SwitcHub-2s User’s Guide Configure Button The Configure button is located on the left front panel. This button is used to select the following configuration functions: • System Performance (displays relative bandwidth utilization rate, forwarding ratio, filtering ratio, and collision ratio for each port) • Full/Half Duplex (sets port communication mode to full-duplex or halfduplex operations) • Diagnostics (tests the status of various system components) To set system performance or diagnostic mode – 1.
SwitcHub-2s User’s Guide SmartWatch LED Panel The comprehensive LED array on the front panel (1) shows if the unit is receiving power, (2) indicates the current display mode, (3) displays network performance for each port, (4) indicates the status of port connections, and (5) shows the result of diagnostic tests. The following figure shows the LED indicators, each of which are described in the following sections. Power Display Mode Performance Indicators Figure 2.
SwitcHub-2s User’s Guide Statistical Display for System Performance (Utilization, Forward, Filter & Collision Display Mode) Display Mode Port 1 Port 2 Value Statistical Indicators Color: Green and Orange Active LEDs: LED rows labeled 1 and 2 Function: Indicates a functional value for each port depending on the selected display mode. (Refer to the Configure Button section earlier in this chapter for instructions on how to select the display mode.
SwitcHub-2s User’s Guide For example, if network utilization reaches 1%, the LED labeled 1% will light up. However, if network utilization rises above 1% (e.g., 35%), the LED labeled 35 and all the other LEDs before it (i.e., 1, 5, 10 and 20) will also light up in rapid succession. These indicators monitor the share of valid network frames handled by each port within a 10Mbps or 100Mbps bandwidth, depending on the Ethernet type currently selected on the back panel.
SwitcHub-2s User’s Guide level marked on the front panel display, the corresponding LED lights up. For example, if packet collision reaches 1%, the LED labeled 1% will light up. However, if collisions go beyond 1% (e.g., 30%), the LED labeled 30+% and all the other LEDs before it (i.e., 1, 5, 10 and 20) also light up in rapid succession.
SwitcHub-2s User’s Guide Diagnostics Display Mode Color: Active LED: Function: Green Diag Indicates that the system is in Diagnostic mode. (Refer to the Configure Button section earlier in this chapter for instructions on how to select the display mode.) After power on, the hub automatically performs a self-diagnostic test. This test is done in two stages. The first stage is the System Diagnostic Test, and the second stage is the Port Diagnostic Test.
SwitcHub-2s User’s Guide Port Diagnostic Test The Port Diagnostic Test checks all ports. If a problem is detected, an LED in the corresponding row (which indicates the malfunctioning port) and column (which indicates the failed component) will light up as shown below.
SwitcHub-2s User’s Guide Transmit (TX) - Indicates outgoing traffic traversing the port. LED Activity BLINKING LIGHT Condition ON NO LIGHT OFF Receive (RX) - Indicates Indication Indicates the port is transmitting packets; blinking is proportional to the traffic passing through the port. No packets are being transmitted from this port. incoming traffic entering the port.
SwitcHub-2s User’s Guide Rear Panel The unit’s rear panel includes two logical Ethernet ports and a full-range power socket. Although 10BASE-T and 100BASE-TX connections are automatically sensed by the SwitcHub, you must use the Configure button to set the data transfer mode to full-duplex or half-duplex operation, as described under Setting the Communication Mode in this chapter. The following figure shows the rear panel. Figure 2.
Chapter 3: Setup and Configuration This chapter provides information on pre-installation requirements, establishing network connections, and configuring the system. Pre-Installation Requirements Before you start making network connections to the SwitcHub, make sure you can provide the right operating environment, including power requirements, and proximity to other network devices that are to be connected. Verify the following installation requirements: • Power requirements: 100 to 240 VAC at 50 to 60 Hz.
SwitcHub-2s User’s Guide Connecting the Hub System The SwitcHub has two logical RJ-45 Ethernet ports. Use twisted pair cable to connect either of the RJ-45 ports to a server/workstation or to another compatible hub as described below. Server/Workstation Connection 1. Prepare the workstations you wish to network. Make sure they have properly installed 10BASE-T or 100BASE-TX network interface cards. 2. Prepare straight-through twisted-pair cables with RJ-45 plugs at both ends.
SwitcHub-2s User’s Guide Daisy-Chain Connection 1. Prepare Category 5 straight-through twisted-pair cables with RJ-45 plugs at both ends. Connect the SwitcHub to another compatible hub using the crossover port (labeled MDI) on either the SwitcHub or on the attached hub (but not both). Also note that as a general rule, the length of twisted-pair cable should not exceed 100 meters. 2. Set the communication mode via the Configure button to half-duplex or full-duplex operation to match the connected device.
SwitcHub-2s User’s Guide Providing Power to the SwitcHub 1. Power on the hub by plugging the power cord into the power socket at the rear of the SwitcHub, and the other end into a power outlet. 2. Check the LED marked Power on the front panel to see if it is on. The unit will automatically select the setting that matches the connected input voltage. Therefore, no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel. 3.
SwitcHub-2s User’s Guide Setting the Display Mode The Configure button is located on the left front panel. This button is used to access the following configuration functions in sequence: • Bandwidth Utilization • Forwarding Ratio • Filtering Ratio • Collision Ratio • Full/Half Duplex • Diagnostics The percentage of LAN bandwidth utilized. The percentage of packets that are forwarded to the other port. The percentage of packets filtered because the destination is in the current segment.
SwitcHub-2s User’s Guide Selections Available This section shows the information available for each display mode and the corresponding LED indicators. The display functions are listed here in the sequence selected by the configure button. For a more detailed description of these indicators, refer to Chapter 2. Bandwidth Utilization Active LED: Util% (ON) In this mode, the statistical indicators show the percentage of valid data handled by each port on the hub compared to available bandwidth.
SwitcHub-2s User’s Guide Full/Half Duplex Mode Selection Active LED: Full/Half (ON) This function is used to set the communication mode for selected ports to fullduplex or half-duplex. 1. Use the Configure button to light the Full/Half Display Mode indicator. Note that before the Configure button is released, the current communication mode selections will be displayed by the Port Status Full LEDs (i.e., if full-duplex mode has been previously set for a port, the corresponding Full LED will be lit).
SwitcHub-2s User’s Guide Verifying Port Status Check each connection by viewing the port status indicators listed below. (For a more detailed description of these indicators, refer to Chapter 2.) • Link Indicates that the port has established valid network connection. • Transmit Indicates outgoing traffic traversing the port. • Receive Indicates incoming traffic entering the port. • Full Indicates that communications have been set to full-duplex.
SwitcHub-2s User’s Guide • Verify that the workstation’s adapter card is functioning properly by trying it in another computer that has been successfully connected to the network. If you still can’t resolve the problem, please refer to Troubleshooting in Appendix A.
Appendix A: Troubleshooting Diagnosing Hub Indicators The SwitcHub-2s can be easily monitored through its comprehensive panel indicators. These indicators assist the network manager in identifying problems the hub may encounter. This section describes common problems you may encounter and possible solutions. Symptom: Link indicator does not light up (green LED) after making a connection. Cause: Workstation’s network adapter, cable or hub port is defective.
SwitcHub-2s User’s Guide System Diagnostics Installation Verify that all system components have been properly installed. If one or more components appear to be malfunctioning, test them in an alternate environment where you are sure that all the other components are functioning properly. Transmission Mode Be sure each port on the SwitcHub is set to the same transmission mode as the attached device; i.e., full-duplex or half-duplex.
SwitcHub-2s System User’s Guide Hub Integrity As a last resort verify the hub’s integrity with a power-on reset. Turn the power to the hub off and then on. If the problem still persists and you have completed all the preceding diagnoses, then contact your Accton distributor for further assistance. (Refer to Appendix E.
Appendix B: Port and Cable Assignments RJ-45 Port Figure B-1 RJ-45 Connector (on the Hub Side) Pin 1 2 3 6 4,5,7,8 MDI-X Assignment Station Port 1 ~ 2 Input Receive Data + Input Receive Data Output Transmit Data + Output Transmit Data Not Used MDI Assignment Cascade Port 1 ~ 2 Output Transmit Data + Output Transmit Data Input Receive Data + Input Receive Data Not Used Table B-1 RJ-45 Pin Assignments Schematics for both straight and crossover twisted-pair cable are shown below.
Appendix C: Specifications Product Specifications Basic Criteria Access Method Standards Conformance Communication Mode Media Supported Number of Ports Dimensions Power Requirements Temperature Humidity Certification Emissions Immunity Safety CSMA/CD, 10/100 Mbps (auto-sensed) IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX Full-duplex or half-duplex 10BASE-T Category 3,4,5 twisted-pair cable 100BASE-TX Category 5 twisted-pair cable 2 RJ-45 ports (selectable 10BASE-T or 100BASE-TX per port) 273mm x 166mm x 42.
Appendix D: Regulatory Standards Compliance EMI Warning FCC Class B Certification Accton Technology Corporation Model Numbers: EH3001-TX FCC ID: HED3001EHLCT-TX This device complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: 1. This device may not cause harmful interference, and 2. This device must accept any interference received, including interference that may cause undesired operation.
SwitcHub-2s User’s Guide Warnings 1. Wear an anti-static wrist strap or take other suitable measures to prevent electrostatic discharge whenever handling this equipment. 2. When connecting this hub to a power outlet, connect the field ground lead on the tri-pole power plug to a valid earth ground line to prevent electrical hazards. You may find the following booklet prepared by the Federal Communications Commission helpful: The Interference Handbook This booklet is available from the U.S.
SwitcHub-2s User’s Guide Voluntary Control Council for Interference (VCCI-2) This product also complies with CISPR22 Class B (EN55022 Class B). EN55022 Declaration of Conformance This is to certify that the Accton Ethernet Hub is 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 EN55022:1987 Class B (CISPR 22:1985/BS 6527:1988).
SwitcHub-2s User’s Guide Safety Compliance Underwriters Laboratories Compliance Statement Important! Before making connections, make sure you have the correct Cord Set. Check it (read the label on the cable) against the following specification list.
SwitcHub-2s User’s Guide Sicherheitshinweise 1. Die Steckdose muß sich in der Nähe des Gerätes befinden und leicht zugänglich sein. 2. Zum Reinigen den Stecker aus der Steckdose ziehen. Beim Reinigen keine Flüssigreiniger oder Sprays verwenden, sondern ein angefeuchtetes Tuch. 3. Das produkt gerät nicht in Naßräume oder in der Nähe von Wasser benutzen, wie z.B. Badezimmer, Schwimmbad, Spülbecken usw. . Das Eindringen von Wasser kann zur Zerstörung des Gerätes führen. 4.
Appendix E: Product Support Services Product Registration Fill in the Owner Registration Card and mail it to Accton Technology Corporation. Accton will keep your record and inform you of any new Accton unit developments. Problem Report If problems occur during unit operation, please check the adapter configuration settings, cables, connectors, network terminators, hardware compatibility and other network components.
SwitcHub-2s User’s Guide After repair, Accton will inform you of the date of delivery and the exact amount due. Please send the payment by T/T (Telegram Transfer), and Accton will send you the fixed component after receiving payment. With or without warranty, if the hardware is found to be free of defects, you will only be charged for testing and handling. Software Update and Upgrade Service Accton constantly improves its software units by adding enhancements and new features.
SwitcHub-2s User’s Guide Technical Support Your dealer or installer is the person who understands your network and Accton units. If neither is available to help you, Accton technical support engineers are available by FAX, mail or phone. • Send your technical questions by FAX to: International Headquarters: 886-35-770-267 USA Headquarters: 408-452-8988 • To obtain software upgrades connect via ftp to ftp.accton.com.tw • Send your technical questions by email to support@accton.com.
SwitcHub-2s User’s Guide Limited Warranty Accton warrants to the original owner that the product delivered in this package will be free from defects in material and workmanship for the lifetime of the product. For the warranty to apply, you must register your purchase by returning the registration card indicating the date of purchase and including proof of purchase. There will be a minimal charge to replace consumable components, such as fuses, power transformers, and mechanical cooling devices.
SwitcHub-2s User’s Guide Return Process Before you may return any Accton product to Accton, you must request an RMA number by calling, FAXing or writing Accton’s Service Department at the address listed below. If you ship the product, you must assume the risk of damage or loss in transit. You must use the original container (or the equivalent) and pay the shipping charge. Accton may replace or repair the product with either a new or reconditioned product, and the returned product becomes Accton’s property.
SwitcHub-2s User’s Guide Accton Distributors Accton Technology Corporation International Headquarters, No. 1 Creation Rd. III, Science-based Industrial Park, Hsinchu 300, Taiwan, R.O.C.
Glossary 10BASE-T IEEE’s specifications for 10 Mbps Ethernet using twisted-pair cable (100W STP or UTP). The maximum length of cable for a point-to-point connection is 100 meters. 100BASE-TX IEEE’s specifications for 100 Mbps Ethernet using twisted-pair cable (100W STP or UTP). The maximum length of cable for a point-to-point connection is 100 meters.
SwitcHub-2s User’s Guide Ethernet A network communication system developed and standardized by DEC, Intel, and Xerox, using baseband transmission, CSMA/CD access, logical bus topology, and coaxial cable. The successor IEEE 802.3 standard provides for integration into the OSI model and extends the physical layer and media with repeaters and implementations that operate on fiber optics, broadband, and twisted-pair. IEEE 802.
SwitcHub-2s User’s Guide Unshielded Twisted-Pair (UTP) Cable composed of two insulated wires twisted together to reduce electrical interference; used in common telephone cord.
Index A H Accton's Ethernet Switch (SwitcHub-2se) • 1-2 Hardware Description • 2-1 C Configure Button • 2-2 Long Press • 3-5 Short Press • 3-5 Connecting the Hub System • 3-2 Connection Verifying • 3-8 Cord Set Specifications • D-4 Crossover Cable • B-1 Cut-through Switching • 1-2 D Daisy-chain Connection • 3-3 Diagnostic Tests • 3-4 Display Mode • 3-5 E EMI Warning • D-1 Ethernet Ports • 2-10 I Installation Requirements • 3-1 L LED Indicators 100 • 2-9 Coll% • 2-5 Diag • 2-7 Filter% • 2-5 Forward%
SwitcHub-2s User’s Guide P System Diagnostic Test • 2-7 Package Contents • iii Port and Cable Assignments • B-1 Port Diagnostic Test • 2-8 Port Status • 3-8 Port Status Indicators • 2-8 Power Socket • 2-10 Product Features • 1-4 Product Specifications • C-1 Product Support Services • E-1 Accton Distributors • E-6 Bulletin Board Service • E-2 Hardware Repair Service • E-1 Interactive Fast Fax • E-2 Ordering Information • E-6 Software Update and Upgrade Service • E-2 Technical Support • E-3 Providing Power
EH3001-TX E0496-R03 150652-101
