EtherHub 1500 System User’s Guide ✚ ♦ EtherHub-16i ✚ ♦ EtherHub-16mi
EtherHub 1500 System User’s Guide ✚ ♦ EtherHub-16i ✚ ♦ EtherHub-16mi
Copyright (c) 1995 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.
FCC Warning 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, and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications.
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About this Guide This is an installation guide for the EtherHub 1500 hubs EtherHub-16i+ and EtherHub-16mi+.
Package Contents Carefully unpack the contents of the package and verify them against the checklist given below. This checklist applies to both the EtherHub-16i+ and EtherHub-16mi+ unless otherwise specified. Package Checklist + æ EtherHub-16i (Model No. EH1501s) or EtherHub-16mi+ (Model No. EH1502s) æ One AC power cord æ 0.
Contents Chapter 1: Overview 1-1 The EtherHub 1500 System Features of EtherHub 1500 System Distinguishing Factors of EtherHub 1500 System 1-1 1-4 1-5 Chapter 2: Hardware Description 2-1 Front Panel Displays SmartWatch LED Panel PWR/CPU Interhub Isolated (EtherHub-16i + only) Serial (EtherHub-16mi+ only) Terminator Monitor (EtherHub-16i+ only) SNMP (EtherHub-16mi+ only) Jabber Alert Utilization Collision Segment LED Indicators Hub ID Indicators Port Status Indicators PARTITION/DISABLE LINK/TRAFFIC Diag
EtherHub 1500 System User’s Guide x Chapter 3: Hardware Installation 3-1 Before You Begin Hardware Installation Stacking Hubs without a Rack Mounting Hubs on a Rack Connecting the Hub System Preparing for System Configuration Local Out-of-Band Configuration Remote Out-of-Band Configuration In-Band Configuration Installing an SNMP Backup Agent 3-1 3-2 3-3 3-4 3-5 3-7 3-7 3-8 3-10 3-10 Chapter 4: Setup and Configuration 4-1 System Setup Diagnostic Tests Upon Power On During Normal Operation Multi-Segm
EtherHub 1500 System User’s Guide Performance Menu Threshold Menu Using the Configure Button Selections Available 4-14 4-14 4-16 4-18 Chapter 5: Applications 5-1 Attaching Stack to One Segment Attaching Stack to Three Segments Attaching Stack to Multiple Segments Each Hub is Isolated Extending the Network with STP/BNC Connections Linking a Stack to a Network Management Station Interconnecting Segments Linking a Distributed Segment Linking Distributed Segments Operating in Novell NetWare IPX Environment
EtherHub 1500 System User’s Guide Appendix A: Product Specifications A-1 Features Physical Characteristics Specifications for FlexBus 1500 Cable Attenuation for Horzontal FlexBus 1500 Cable A-1 A-1 A-2 Error! Bookmark not defined.
List of Figures The EtherHub-16i+ Front Panel The EtherHub-16mi+ Front Panel SmartWatch LED Panel for EtherHub-16i+ SmartWatch LED Panel for EtherHub-16mi+ Daisy-Chain Switch Setting The EtherHub-16i+ Rear Panel The EtherHub-16mi+ Rear Panel Stacking Hubs without a Rack Mounting Hubs Using a Mounting Rack Connecting Hub’s Serial Port to PC COM Port Connecting Hub’s Serial Port to a Modem Connecting Remote PC’s Serial Port to a Modem Communication Port Dialog Box DCE/DTE Dialog Box Phone List Menu Main Men
Chapter 1: Overview The EtherHub 1500 System The EtherHub 1500 System is a powerful and innovative LAN network enhancement and management product series. Each component in the system supports a multi-segment bus architecture that enhances traffic management and network bandwidth utilization. This system offers the network manager a wide range of flexible configuration options, allowing you to effectively increase your network’s bandwidth.
EtherHub 1500 System User’s Guide In addition, this hub supports a multi-segment bus architecture that enhances traffic management and network bandwidth utilization. With an SNMP agent, this unit not only functions as an intelligent hub, but can also monitor up to 10 intelligent hubs connected to it (including itself) through the FlexBus 1500 port connection. The EtherHub-16mi+ conforms to both the IEEE 802.3 repeater specification and the Simple Network Management Protocol (SNMP).
EtherHub 1500 System User’s Guide + EtherHub-16i , a 16-port intelligent 10BASE-T hub. It includes - • 16 RJ-45 STP station ports for networking computers to the network using shielded or unshielded twisted-pair cable (STP or UTP). • 1 optional port for installing an AUI, BNC or Fiber-Optic module, which permits connection to thick or thin Ethernet or 10BASE-F cable. • 2 FlexBus 1500 ports for connecting to compatible hubs or to the EtherHub-16mi+ via a FlexBus 1500 cable.
EtherHub 1500 System User’s Guide the SNMP management agent (i.e., EtherHub-16mi+). The network management station can be a 386 or 486 workstation with a 10MB hard disk, at least 2 MB on-board memory, a VGA display, and running Windows version 3.1 or higher (i.e., Windows 3.1, 3.11, ’95, NT). AccView/Open EtherHub Manager, is network management software specifically designed to manage Accton’s EtherHub family.
EtherHub 1500 System User’s Guide • Provides one serial 9-pin RS232 port for out-of-band network management (EtherHub-16mi+ only) • Supports daisy chaining by using a daisy-chain switch to convert port 16 to a daisy-chain port • Automatic polarity detection and correction permits automatic recovery due to wiring errors • Automatically partitions bad port to protect network • Adapts to universal wide range voltage power (i.e.
EtherHub 1500 System User’s Guide • Supports out-of-band management (using Accton’s proprietary EtherHub 1500 System Configuration Program), and full software configurable in-band management using the optional AccView/Open (network management software) • Flash ROM on board the EtherHub-16mi for easily updating + the SNMP agent using AccView/Open’s download option • Stacked hubs can be distributed up to 100-meters in a single segment configuration 1-6 Overview
Chapter 2: Hardware Description This chapter describes the hardware features of the EtherHub-16i + and EtherHub-16mi+. Except for 3 LED indicators that are unique to each hub, both products have similar indicators and other front panel components. Likewise, the rear panel is similar for both versions, except that the EtherHub-16i+ does not support the RS232 serial port. Before connecting any network device to the hub, read this chapter carefully.
EtherHub 1500 System User’s Guide SmartWatch LED Panel Both hubs have a SmartWatch LED panel that includes comprehensive indicators for monitoring the device and network status. A quick glance at the front panel tells you if the unit’s power in ON, if it is monitoring another hub (or concentrator), or if a problem exists on the network. The following sections describe the function of each indicator. Figure 2.3 SmartWatch LED Panel for EtherHub-16i + Figure 2.
EtherHub 1500 System User’s Guide PWR/CPU Color: Label: Function: Green PWR/CPU Power indicator LED Activity STEADY LIGHT Condition ON BLINKING LIGHT ON NO LIGHT OFF Indication Unit is receiving power, CPU is running, and EH1502s Agent is in Master mode. Unit is receiving power, CPU is running, and EH1502s Agent is in Slave mode. Power is disconnected; no power received.
EtherHub 1500 System User’s Guide + Serial (EtherHub-16mi only) Color: Label: Function: Green Serial Indicates connection to a management console LED Activity BLINKING LIGHT Condition ON NO LIGHT OFF Indication Agent has a valid connection to a management console using its RS232 serial port. A valid link only occurs when the management console is sending a message to or receiving a message from the agent. No connection to a management console.
EtherHub 1500 System User’s Guide + Monitor (EtherHub-16i only) Color: Label: Function: Green Monitor Indicates that an SNMP management agent is connected to and managing the hub LED Activity BLINKING Condition ON NO LIGHT OFF Indication Hub is connected to and managed by an Agent. Hub is not connected to an Agent.
EtherHub 1500 System User’s Guide Jabber Color: Label: Function: Red Jabber Jabber lock-up indicator Jabber refers to an abnormal Ethernet frame transmission. The frames causing jabber are normally much too long. This may result from a malfunctioning Ethernet card and may cause data loss for all network users. I LED Activity STEADY LIGHT Condition ON NO LIGHT OFF Indication Jabber exists on one or more port connection (i.e., RJ-45 or ALT port). No jabber occurring.
EtherHub 1500 System User’s Guide Alert Color: Label: Function: Yellow Alert Indicates hardware or hub ID setting problems LED Activity BLINKING LIGHT NO LIGHT F Condition ON OFF Indication Hardware or hub ID setting error has occurred. No abnormal occurence. The Alert LED indicates that the device has encountered a problem in one or more hardware components (e.g., EEPROM checksum error, or Configure button is locked). However, the unit can still function even if the Alert LED is on.
EtherHub 1500 System User’s Guide These LEDs monitor the share of valid network frames transmitted by this hub within a 10Mbps bandwidth. They provide a quick way to monitor the current traffic load relative to the network’s capacity. Collision Label (%) 1% 3% 5% 10% 15+% Color Green Amber (yellow) Red Function Indicates the percentage of packet collisions occurring out of the total packets received by the hub.
EtherHub 1500 System User’s Guide Segment LED Indicators Color: Label: Green Function: Indicates which segment is attached to the hub There are 3 Ethernet segments embedded in the FlexBus 1500 ports located on the back plane of the EtherHub 1500 series. These units can be attached to any one of the three Ethernet segments. The 3-segment LED indicator displays a combination of ON/OFF lights to show which segment the unit is connected to.
EtherHub 1500 System User’s Guide Hub ID Indicators Color: Label: Green Function: Indicates Unit ID Setting In a stacked system, each hub unit has a unique ID. The EtherHub 1500 hub series is equipped with a function that automatically sets the hub ID, freeing the user from this task. The table below shows possible display combinations for the hub unit’s ID LED indicators marked "1 2 4 8" and their corresponding meaning.
EtherHub 1500 System User’s Guide PARTITION/DISABLE F LED Activity STEADY RED LIGHT Condition PARTITION BLINKING RED LIGHT NO LIGHT DISABLE OFF Indication Indicates port partitioning due to an abnormal network condition. Indicates the port has been disabled Port is in good condition. The PARTITION/DISABLE LEDs are also used as diagnostic LEDs. Please refer to the Diagnostic Test LEDs section later in this chapter for more information.
EtherHub 1500 System User’s Guide LINK/TRAFFIC LED Activity STEADY GREEN LIGHT BLINKING GREEN LIGHT NO LIGHT Condition ON ON OFF Indication Indicates a valid link has been established on this port. Indicates the port is receiving packets; blinking is proportional to the traffic passing through the port. No valid link has been established on this port. Link The corresponding LINK/TRAFFIC LED should light up when a device (e.g., computer, hub or bridge) establishes a valid connection using the RJ-45 port.
EtherHub 1500 System User’s Guide Diagnostic Test LED Indicators The RJ-45 PARTITION/DISABLE LEDs not only monitor the partition or disabling of an RJ-45 port, they also monitor diagnostic test results. LED Activity BLINKING RED LIGHT NO LIGHT Condition ON OFF Indication The corresponding hardware component failed the diagnostic test. The corresponding hardware component successfully passed the diagnostic test. After power on, the hub automatically performs a diagnostic test.
EtherHub 1500 System User’s Guide The system tests each component one at a time. The corresponding LED will display a blinking light (ON) after test completion to indicate which component failed the test. No light means all the hub components passed the diagnostics. For EtherHub-16i+, the unit will complete the test cycle even if a problem is detected on any of the components. For EtherHub-16mi+, the unit will complete the test cycle for components 1 to 12 even if a problem is detected.
EtherHub 1500 System User’s Guide STP Station Ports The unit has sixteen RJ-45 station ports. Using shielded or unshielded (STP or UTP) twisted-pair cable, connect your workstation (via the network interface card’s port) to any available RJ-45 port. Port 16 can be converted into a daisy-chain port by enabling the Daisy-Chain switch (see the following section on theDaisy-Chain Switch for related information).
EtherHub 1500 System User’s Guide Rear Panel Displays This section describes significant features of the unit’s rear panel. See Figures 2.6 and 2.7 for illustration.
EtherHub 1500 System User’s Guide BUS IN Using a FlexBus 1500 cable, connect this port to the BUS OUT port of an EtherHub-16i+ or any EtherHub 1500 series hub. BUS OUT Using a FlexBus 1500 cable, connect this port to the BUS IN port of an EtherHub-16i+ or any EtherHub 1500 series hub. F The unit also supports "hot remove" for the FlexBus 1500 cable. This allows you to unplug the FlexBus 1500 cable while the unit is powered on.
EtherHub 1500 System User’s Guide BNC Module (10BASE2) The BNC module has a built-in transceiver with a BNC port for connection using thin coaxial cable. The BNC port can link up to 30 hubs on a thin coaxial cable segment. The thin coaxial cable that links the BNC ports may be extended up to 185 meters and have computers or other Ethernet devices attached to it. When connecting two hubs via BNC ports, there should be at least 0.5 meters (about two feet) of coaxial cable between the two BNC ports.
Chapter 3: Hardware Installation This chapter describes how to install the hardware unit. Before You Begin 1. Before installing the hub, verify that the electrical values meet the following specifications. AC Power 100 to 240V (± 10%) Frequency 50 to 60Hz (± 3Hz) The hub is equipped with a power supply that automatically detects the input voltage level. 2. Leave at least 10 cm. of space at the front and back of the hub for ventilation. We recommend that the hub be installed in a cool and dry area. 3.
EtherHub 1500 System User’s Guide Hardware Installation 1. Find a location for the hub. The unit is suitable for desktop or rack-mount installation. A good location is at the center of all the devices you want to link, close to the trunk segment, and near a power outlet. F The EtherHub 1500 hubs can be stacked with other hubs using a mounting rack or directly on top of one another through the FlexBus 1500 ports.
EtherHub 1500 System User’s Guide Stacking Hubs without a Rack 1. Stick a self-adhesive rubber foot (comes with this package) on the 4 hollow spaces at the bottom of the first hub. 2. Place the first hub in the area where you want the stack to be installed. 3. Repeat step 1 for each hub before stacking them. The rubber feet cushion the hubs against shock/vibration and provide space between each hub for ventilation. EtherHub1500 Hub Stack (Up to 10 Hubs) Figure 3.
EtherHub 1500 System User’s Guide Mounting Hubs on a Rack 1. Confirm that the rack you will use is an EIA standard-size 19-inch rack. 2. Use the screws provided with the mounting rack to mount the hub using the hub’s mounting brackets. EtherHub1500 Hub (Up to 10 Hubs) Figure 3.
EtherHub 1500 System User’s Guide Connecting the Hub System 1. Plug one end of the FlexBus 1500 cable (provided) in the BUS OUT port of the top hub and the other end to the BUS IN port of the next hub. Repeat this step for each hub in the stack. The top hub should only have one FlexBus 1500 port in use (BUS OUT). Refer to the FlexBus 1500 section in Chapter 2 for related information. F Hubs in a stack can only be managed by the network management agent through the FlexBus 1500 connection.
EtherHub 1500 System User’s Guide 3. Connect the hub to an Ethernet trunk, if necessary. (Applies only to hubs with a slide-in module transceiver installed in the ALT PORT.) For the default slide-in module, plug the BNC T-type connector into the BNC port of the hub, and use this port to connect the device to the RG-58A/U thin Ethernet trunk. If the unit is at the terminal end of a trunk segment, connect a 50-ohm (Ω) terminator to the open end of the "T" connector.
EtherHub 1500 System User’s Guide The unit will automatically select the setting that matches the input voltage connected. Therefore, no additional adjustments are necessary when connecting it to any input voltage within the range marked on the rear panel. F The unit supports a "hot remove" feature which permits you to connect/disconnect cables without powering off the hub and without disrupting the operation of the hubs in stack.
EtherHub 1500 System User’s Guide Remote Out-of-Band Configuration If you use a remote PC to configure the EtherHub 1500 via modem connections, at the remote site make sure the modem’s baud rate is 9600 and that the AT command is supported. EtherHub 1500 Site Connect the DB9 to RJ45 converter for the EtherHub-16mi’s serial port (RS232), and a DB25 to RJ45 converter for the modem’s serial port (RS232) using the UTP cable provided.
EtherHub 1500 System User’s Guide Modem PSTN PC Modem FLEX-BUS 1500 IN OUT SERIAL PORT ALT PORT 9-PIN to Hub black color to Modem gray color Figure 3.5 Connecting the Remote PC’s RS232 Serial Port to a Modem Running the Out-of-Band Configuration Program Run Accton’s EtherHub 1500 System Configuration Program. See the section on Accton’s EtherHub 1500 System Configuration Program in Chapter 4 for more information.
EtherHub 1500 System User’s Guide In-Band Configuration If you use AccView/Open or other network management software to configure the EtherHub 1500, then set up your inband Network Management Station. The in-band network management station is the personal computer used to run your network management software. It should be connected to any available RJ-45 port of the stacked system and on the same segment as the SNMP management agent.
EtherHub 1500 System User’s Guide 2. Turn it off again before exceeding 30 seconds to prevent it from returning to a Master mode. 3. Add the newly configured Slave agent to the Hub stack using the FlexBus 1500 cable. 4. Turn the Slave agent on again. The new agent will start to function as a backup to the SNMP system.
Chapter 4: Setup and Configuration System Setup Diagnostic Tests Upon Power On Upon power on, the system performs an internal self-diagnostic test of major hub components. If any component fails during the test, the hub will try to complete the diagnostic procedure. Otherwise, the system will hang. For related information, refer to Diagnostic Test LED Indicators in Chapter 2. The following table shows the components to be tested.
EtherHub 1500 System User’s Guide During Normal Operation You can use the Configure button any time you want the system to perform a diagnostic test. However, when testing begins, the system leaves normal operation. If no problem is encountered by diagnostics, the system automatically returns to normal operation. Multi-Segment Architecture The EtherHub 1500 system supports multi-segment configuration through the FlexBus 1500 cabling.
EtherHub 1500 System User’s Guide FlexBus 1500 Management Link The management link in a chain of cascaded hubs must be connected to manage the stack as a single unit. This means that only hubs connected using the FlexBus 1500 can be controlled by an SNMP management agent. At most, 10 hubs can be managed and linked together using the FlexBus 1500 connection. Hub ID Setting In a stacked system, each hub should have a unique ID number to identify itself.
EtherHub 1500 System User’s Guide Slave agent will be replaced by the Master agent’s data. As a result, the Slave agent will assume the Master’s IP address when taking over the system. To manage the stack using the out-ofband control program after the Slave has assumed control, plug your PC or modem into the DTE port of the Backup agent. In a redundant hub stack system, only two SNMP agents are allowed, one as a Master agent and the other as a Slave agent.
EtherHub 1500 System User’s Guide Hot Remove Function The EtherHub 1500 system supports a “hot remove” capability that allows you to connect/disconnect the EtherHub 1500 hubs from the system without disrupting the network Preparing for Configuration Management There are two methods for configuring the EtherHub 1500 system - using the out-of-band program or using the Configure button. Optional in-band network management software, AccView/Open, may also be used to configure the system.
EtherHub 1500 System User’s Guide Activate the EtherHub 1500 System Configuration Program from a local console or via modem connection as described below. This will open the communication dialog box shown in Figure 4.1. From a local console Type “EH15SCP” at the DOS prompt C:\>EH15SCP From a remote modem connection • When using a PCMCIA FAX/Modem, first add the following entry to your config.sys file: device=cardtalk.
EtherHub 1500 System User’s Guide Figure 4.2 DCE/DTE Dialog Box 4. Select the appropriate option in the DCE/DTE dialog box: • Terminal Channel for local hookup. • Modem Channel for remote connection via modems. Select Modem Channel to open the Phone List menu as shown in Figure 4.3. Enter the phone number and press [Enter] to start the dialing mechanism. Figure 4.3 Phone List Menu Once the connection is established, the main menu for outof-band configuration appears as shown in Figure 4.4 Figure 4.
EtherHub 1500 System User’s Guide EtherHub 1500 System Configuration Program (EtherHub-16mi+ only) Accton provides a proprietary, user-friendly, menu driven outof-band program (EtherHub 1500 System Configuration Program). This program allows you to configure the stack using a PC directly attached to the RS232 port on the management device (EtherHub-16mi+) or remotely, via a modem connected to the RS232 port.
EtherHub 1500 System User’s Guide System Menu Information Displays EtherHub system information. Configuration Modifies various parameter settings necessary for communicating with the management agent. Trap Managers Selects management stations to receive trap messages from the system. Download Downloads a binary file to the SNMP agent. Restart Resets the SNMP agent. Factory Settings Reverts all configuration settings to the original factory settings.
EtherHub 1500 System User’s Guide Changing System Configuration Use the Configuration command from the System Menu to modify current values for the following parameters: Parameter IP Address MAC Address Subnet Mask Default Gateway Default NMS NMS-Download File IPX Frame Type IPX Network Number Description IP address of the agent you’re managing. The EtherHub system may be run on SNMP protocol over UDP/IP transport protocol.
EtherHub 1500 System User’s Guide Downloading System Software Use the Download command from the System Menu to load available software updates into the agent’s flash ROM. The download file should be an EtherHub 1500 *.bin file from Accton Technology Corporation; otherwise the agent will not accept it. Invoking this command brings up the Download dialog box. When all entries are confirmed, the display will change to show the progress of the download process.
EtherHub 1500 System User’s Guide Control Menu Hub Includes hub description and commands to isolate/reattach network connection, or assign hub to a specified segment. Port Includes port description and command to enable/disable selected port. Backup Port Defines master/slave port pairs used for emergency backup. Push Button Enables/disables external Configure button on selected hub. Configuring Hub Parameters Use the Hub command from the Control menu to configure any hub in the stack.
EtherHub 1500 System User’s Guide Configuring Port Parameters Use the Port command from the Control menu to configure the ports for any hub in the stack. (Select the required hub using the and function keys.) This menu provides a brief description of the selected hub, and also allows you to enable/disable any port in the selected hub. Parameter Hub ID Position Port Identifier Name Type Status Part Link State Description Hub identifier within the stack. The physical position in the stack.
EtherHub 1500 System User’s Guide Setting the External Configure Buttons Use the Push Button command in the Control Menu to disable or enable the Configure button on any hub. Performance Menu Displays statistics for the System (entire stack), selected Segment, selected Hub, or all Ports on a specified hub. (Select any segment or hub using the and function keys.) Description1 Number of frames passing through this device. Number of bytes passing through this device.
EtherHub 1500 System User’s Guide To set thresholds, 1. Open the Threshold dialog box from the menu bar. 2. Select the system component (Type: System, Any Hub, Any Port, Select Hub, Select Port). If you choose Select Hub or Select Port, then choose the Hub ID or Port ID using the function key. 3. Select the variable to monitor (Variable: Frames, Bytes, Collisions, Allignments, CRCs or Total Errors). If you choose Select Hub or Select Port, then choose the variable Type using the function key. 4.
EtherHub 1500 System User’s Guide Using the Configure Button Depending on the model you purchased, there are 5 (EtherHub16i+) or 6 (EtherHub-16mi+) configuration functions accessed in sequence using the Configure button, including: • • • • • • Segment Setting Hub ID Setting Master Agent Setting (EtherHub-16mi+ only) Demo Function Diagnostic Function Reset Function. A "long press" on the button allows you to switch from one function to the next.
EtherHub 1500 System User’s Guide • A "short press" is used to switch between the selections available within each function. For example, in Segment Setting, there are 4 selections available. By using a "short press" on the Configure button, you can move from one selection (e.g., Attach hub to Segment 1) to the next (e.g., Attach hub to Segment 2). Note, however, that a selection will only take effect after a "long press" on the Configure button.
EtherHub 1500 System User’s Guide Selections Available This section shows the selections available for each function and the corresponding LED display. The functions are listed here in sequence. Segment Setting Active LEDs: Segment LEDs Attach the hub to one segment.
EtherHub 1500 System User’s Guide Master Agent Setting (EtherHub-16mi+ only) Active LEDs: PARTITION/DISABLE LED 1 LINK/TRAFFIC LED 1 (labeled Master ) You can set the hub as a Master (main) or Slave (backup) agent. If the Master agent fails, the Slave agent takes over its functions. LED LINK/TRAFFIC LED 1 PARTITION/DISABLE LED 1 F Activity BLINKING BLINKING Selection Set hub as Master Agent Set hub as Slave Agent + For EtherHub-16i users, proceed to the next function (Demo).
EtherHub 1500 System User’s Guide Diagnostic function Active LEDs: PARTITION/DISABLE LED 2 (EtherHub-16i+) PARTITION/DISABLE LED 3 (EtherHub-16mi+) LINK/TRAFFIC LED(labeled Diag) Enabling the Diagnostic function will activate diagnostic tests similar to the one performed upon power on. For diagnostic test details, refer to the section on Diagnostic Tests earlier in this chapter. After succesfully completing Diagnostics, the system returns to normal operation.
Chapter 5: Applications The EtherHub 1500 series stackable hubs are designed to provide network installers flexibility in configuring their network connections. A hub can be used as a simple standalone hub or connected with other hubs using various configurations. This chapter includes network applications using the multi-segment architecture. Attaching Stack to One Segment You can attach all hubs in a stacked system to the same segment.
EtherHub 1500 System User’s Guide Attaching Stack to Three Segments This example shows 3 independent Ethernet LANs in a stacked system. Hubs 1, 2 and 3 are attached to segment 2, while hubs 4 to 7 are attached to segment 1, and hubs 8 to 10 are attached to segment 3. SEGMENT 2 ID 1 EtherHub1500 AGENT MANAGEMENT CHANNEL EtherHub1500 HUB SEGMENT 2 SEGMENT 2 ID 2 ID 3 SEGMENT 1 ID 4 SEGMENT 1 ID 5 SEGMENT 1 ID 6 SEGMENT 1 ID 7 SEGMENT 3 ID 8 SEGMENT 3 ID 9 SEGMENT 3 ID 10 SEG. LINK 1 SEG.
EtherHub 1500 System User’s Guide Attaching Stack to Multiple Segments You can interconnect the hubs in a stack using a multi-segment configuration. In a stacked system, some hubs may be connected to a segment while others are isolated (not attached to a segment). In this example, hubs 1 and 2 are attached to segment 2, hubs 3 to 5 are attached to segment 1, and hubs 6 to 8 are attached to segment 3. However, hubs 9 and 10 are not connected to any segment. These hubs form isolated segments.
EtherHub 1500 System User’s Guide Each Hub is Isolated In this example, each hub in the stack is an independent segment (isolated). Hubs 2 to 10 are not connected to any of the 3 segments embedded in the FlexBus 1500 cabling; while the EtherHub-16mi+ (EtherHub 1500 Agent), though attached to Segment 1, is functionally isolated. S egm en t 1 ID 1 E the rH ub 15 00 A G E N T MANAGEM ENT CHANNEL E therH ub1500 HU B ID 2 S E G . L IN K 1 S E G . L IN K 2 E therH ub1500 HU B ID 3 ID 4 S E G .
EtherHub 1500 System User’s Guide Extending the Network with STP/BNC Connections Extend your network by connecting any of the hubs in a stacked system to other compatible hubs using the STP and/or ALT port connections. In the diagram below, a stand-alone hub is connected to hub 5 in the stacked system using the STP connection. The other stand-alone hub is connected to hub 8 in the stacked system using a BNC connection.
EtherHub 1500 System User’s Guide Linking a Stack to a Network Management Station In a stacked system, connect the in-band management workstation to the same segment that the management agent is attached to. In this example, the management agent is attached to segment 1. Thus, the in-band management workstation (e.g., running AccView/Open) should also be connected to segment 1. SEGMENT 1 EtherHub 1500 AGENT MANAGEMENT CHANNEL EtherHub1500 HUB SEG. LINK 1 SEGMENT 3 SEG. LINK 2 EtherHub1500 HUB SEG.
EtherHub 1500 System User’s Guide Interconnecting Segments The 3 segments within a stacked system can be combined into an interconnected network using Accton’s EtherHub-SBH. Connect the EtherHub-SBH to the hub management agent as illustrated below.
EtherHub 1500 System User’s Guide Linking a Distributed Segment Hubs installed at various locations can be managed by a single EtherHub 1500 Agent when they are connected to the Agent via a FlexBus 1500 port connection. Hubs can be connected to a single-segment domain (i.e., one segment common to all hubs controlled by the management agent) or can remain isolated. The maximum segment length using FlexBus 1500 cabling linking the distributed hubs is 100 meters.
EtherHub 1500 System User’s Guide Linking Distributed Segments Hubs installed at various sites can be managed by a single EtherHub 1500 Agent when they are connected to the Agent via the FlexBus 1500 port connection. However, all hubs must be connected to the same segment at the central site. The segment setting for hubs at all other sites must be set to isolated. (Refer to the Segment Setting function in Chapter 4.
Appendix A: Product Specifications Features Expansion Expansion Interface Segmentation Fault Tolerance Up to 10 modules (170 station ports) FlexBus 1500 cable Supports 3 or more segments in a stack Hot swappable modules; backup SNMP agent and redundant port link (for EtherHub-16mi+) Physical Characteristics Station Ports Backbone Port Serial Port System Power Temperature Humidity Dimensions Microprocessor Configuration SmartWatch™ 16 10BASE-T (RJ-45) Optional Out-of-band management 100V - 260V AC (±10%)
EtherHub 1500 System User’s Guide Specifications for FlexBus 1500 Cable The FlexBus 1500 is a category 5 STP cable used to connect stacked EH1500+ or compatible hubs. It supports segment configuration setup and management functions for EH1500+ or compatible hubs.
EtherHub 1500 System User’s Guide Attenuation for Horzontal FlexBus 1500 Cable Maximum Attenuation in dB for 305m (1000ft) of cable @ 20°C Frequency (MHz) 0.064 0.256 0.512 0.772 1 4 8 10 16 20 25 31.25 62.5 100 db 2.2 3.2 4.5 5.5 6.3 13 18 20 25 28 32 36 52 67 Table A-1 NEXT for Horizontal FlexBus 1500 Cable Worst Pair NEXT Loss in dB @ 305m (1000ft) Frequency (MHz) 0.064 0.256 0.512 0.772 1 4 8 10 16 20 25 31.25 62.5 100 db 2.2 3.2 4.5 5.5 6.
EtherHub 1500 System User’s Guide Standards Compliance A-4 Standards Ethernet-IEEE 802.3 Repeater Standard and Repeater Management Standard Safety UL 1950 CSA 22.2-950 TÜV/GS/EN60950 IEC 950 USA Canada Germany International Electromagnetic Emissions Electrostatic RS EFT/Noise FCC Class A IEC 801.2, EN55101-2 IEC 801.3, EN55101-3 IEC 801.
Appendix B: Pin Assignments The following table lists the pin assignments for each pair used in the FlexBus 1500 cable. FlexBus 1500 Pin Description FlexBus 1500 4-pair Wiring Color Codes & Functions Pair 1 2 3 4 Pin 4 5 1 2 3 6 7 8 Color White/Blue Blue/White White/Orange Orange/Blue White/Green Green/Blue White/Brown Brown/Blue Function Segment 2 Segment 3 Segment 1 Management The following tables describe the port pins for the EtherHub-16mi+ (EH1502s).
EtherHub 1500 System User’s Guide DB9 Serial Port to RJ-45 Converter Connector Pin Assignment Description DTR (Data Terminal Ready) RxD (Received Data) TxD (Transmitted Data) SG (Signal Ground) RI (Ring Indicator) CTS (Clear-to-Send) RTS (Request-to-Send) DCD (Data Carrier Detected) DSR (Data Set Ready) RJ-45 Pin Mapping 1 2 3 4 5 6 7 8 NC EH1502s DB9 Connector 4 2 3 5 9 8 7 1 6 DB9 PC’s COM Port to RJ-45 Converter Connector Pin Assignment Description DTR (Data Terminal Ready) RxD (Received Data) TxD (T
EtherHub 1500 System User’s Guide DB25 RS232 to RJ-45 Converter Connector Pin Assignment Description RJ-45 Pin Mapping DTR (Data Terminal Ready) RxD (Received Data) TxD (Transmitted Data) SG (Signal Ground) RI (Ring Indicator) CTS (Clear-to-Send) RTS (Request-to-Send) DCD (Data Carrier Detected) DSR (Data Set Ready) EH1502s DB25 Connector 20 3 2 7 22 5 4 8 6 1 2 3 4 5 6 7 8 NC Connection from EH1502s 9-Pin Serial Port to PC’s 9-Pin COM Port EH1502’s 9-Pin Serial Port 1 DCD 2 RXD 3 TXD 4 DTR 5 SGND 6 D
EtherHub 1500 System User’s Guide Connection from EH1502 9-Pin Serial Port to Modem’s 25-Pin DCE Port EH1502’s 9-Pin Serial Port 1 2 3 4 5 6 7 8 9 B-4 Pin Assignments Modem’s 25-Pin DCE Port < ---------- DCD ---------< ---------- RXD --------------------- TXD -------- > ------------ DTR -------- > ----------- SGND --------< ---------- DSR --------------------- RTS -------- > < --------- CTS ----------< ----------- RI ------------ 8 3 2 20 7 6 4 5 22
Appendix C: 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.
EtherHub 1500 System 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.
EtherHub 1500 System User’s Guide Interactive Fast Fax (U.S.A. office) Printed technical documentation can be FAX’ed to your FAX machine, 24-hours a day. • Call 408-452-8811 to reach Accton’s interactive Fast FAX service. You will need a Touch-Tone phone and a FAX machine (or equivalent). Choose document 911 for a listing of technical bulletins. Technical Support Your dealer or installer is the person who understands your network and Accton units.
EtherHub 1500 System 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.
EtherHub 1500 System 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.
EtherHub 1500 System User’s Guide Ordering Information • EtherHub-16i+ (EH1501s) Intelligent 16-port 10BASE-T (RJ-45) multisegment Ethernet hub with one 10BASE2 (BNC) backbone port • EtherHub-16mi+ (EH1502s) Intelligent 16-port 10BASE-T (RJ-45) multisegment hub with one 10BASE2 (BNC) backbone port and SNMP agent • Alternative Module for Backbone Port EH1552 EH1553 AUI transceiver interface module Fiber-optic transceiver ST connector interface module • EtherHub-SBH (EH2001) Secure multi-segment backb
Glossary 10BASE-T IEEE’s specifications for running Ethernet using twisted-pair. AccView/Open AccView/Open is a complete network management product with modules for managing Accton devices. Alt Port An optional port found on the backplane of the EtherHub. A BNC, AUI or Fiber-Optic module can be installed in the ALT port. AUI (attachment unit interface) A 15-pin interface specified by the IEEE 802.
EtherHub 1500 System User’s Guide A 16-port intelligent hub with an SNMP-based network management agent. It is a component of Accton’s EtherHub 1500 System. 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.
EtherHub 1500 System User’s Guide Type of architecture that enhances traffic management and network bandwidth utilization by segregating network traffic. Network Management Station The computer used to run AccView/Open. It is used by the network manager to monitor the network. Out-of-Band A way of communicating with a network device from outside the standard network channels. RJ-45 Connector Most common terminator for unshielded twisted-pair wiring.
Index A Accton’s Out-of-Band Program EtherHub 1500 System Configuration Program • 4-8 AccView/Open • 1-2, 1-4, 1-5, 2-11 Alert LED • 2-7 Allignment Errors • 4-14 ALT Port • 2-17, 2-18 Alternative Interface Module • 1-4 Applications • 5-1 Attaching Hubs in Stack to Multi-Segments • 5-3 Attaching Hubs in Stack to Three Segments • 5-2 Attaching Stacked Hubs to One Segment • 5-1 Each Hub is an Isolated Segment • 5-4 Extending the Network with STP/ALT Connections • 5-5 Linking a Distributed Segment • 5-8 Linking
EtherHub 1500 System User’s Guide EtherHub-SBH • 1-3 Event Activation • 4-15 J Jabber • 2-6 F L Factory Settings • 4-9 FCC Warning • i flash ROM • 4-11 FlexBus 1500 • 2-16 Management Link • 4-3 Specifications • A-2 Frame • 4-14, 4-15 Frame alignment errors • 4-15 Hardware Description • 2-1 Front Panel • 2-1 Rear Panel • 2-16 Hardware Installation • 3-1 Hardware Repair Service • C-1 Hot Removable Function • 4-5 Hub ID • 2-10, 4-12 Hub ID LEDs • 2-10 Hub ID Setting • 4-3, 4-18 Hub Position • 4-12 LED In
EtherHub 1500 System User’s Guide O R Ordering Information • C-6 Out-of-Band Configuration • 4-5 Out-of-Band Configuration Program • 3-9 Remote Out-of-Band Configuration • 3-8 Reset function • 4-20 Restarting the agent • 4-9, 4-11 Retry (Downloading) • 4-11 Reverting Configuration to Factory Settings • 4-11 P partition • 4-13 PARTITION/DISABLE LEDs • 2-11 Performance Menu • 4-14 Pin Assignments Connection from EH1502 9-Pin Serial Port to Modem's 25-Pin DCE Port • B-4 Connection from EH1502s 9-Pin Seria
EtherHub 1500 System User’s Guide Timeout (Downloading) • 4-11 Total Errors • 4-14, 4-15 Traffic • 2-12 Trap Managers • 4-9 TROUBLESHOOTING • 2-12 U Using the Configure Button • 4-16 Utilization LEDs • 2-7 4 Index
EH1501s EH1502s E0895-R01 150482-101
