7.
Electrical Hazard: Only qualified personnel should perform installation procedures. Riesgo Electrico: Solamente personal calificado debe realizar procedimientos de instalacion. Elektrischer Gefahrenhinweis: Installationen sollten nur durch ausgebildetes und qualifiziertes Personal vorgenommen werden. Notice Enterasys Networks reserves the right to make changes in specifications and other information contained in this document and its web site without prior notice.
REGULATORY COMPLIANCE INFORMATION FEDERAL COMMUNICATIONS COMMISSION (FCC) NOTICE This device complies with Part 15 of the FCC rules. Operation is subject to the following two 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. 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.
ELECTROMAGNETIC COMPATIBILITY (EMC) This product complies with the following: 47 CFR Parts 2 and 15, CSA C108.8, 89/336/EEC, EN 55022, EN 61000‐3‐2, EN 61000‐3‐3, EN 55024, AS/NZS CISPR 22, VCCI V‐3. COMPATIBILIDAD ELECTROMÁGNETICA (EMC) Este producto de Enterasys cumple con lo siguiente: 47 CFR Partes 2 y 15, CSA C108.8, 89/336/EEC, EN 55022, EN 55024, EN 61000‐3‐2, EN 61000‐3‐3, AS/NZS CISPR 22, VCCI V‐3.
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VCCI NOTICE This is a class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment (VCCI). If this equipment is used in a domestic environment, radio disturbance may arise. When such trouble occurs, the user may be required to take corrective actions. BSMI EMC STATEMENT — TAIWAN 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 adequate measures.
DECLARATION OF CONFORMITY Application of Council Directive(s): 89/336/EEC 73/23/EEC Manufacturer’s Name: Enterasys Networks, Inc. Manufacturer’s Address: European Representative Address: 50 Minuteman Road Andover, MA 01810 USA Enterasys Networks, Ltd.
ENTERASYS NETWORKS, INC. FIRMWARE LICENSE AGREEMENT BEFORE OPENING OR UTILIZING THE ENCLOSED PRODUCT, CAREFULLY READ THIS LICENSE AGREEMENT. This document is an agreement (“Agreement”) between the end user (“You”) and Enterasys Networks, Inc.
3. APPLICABLE LAW. This Agreement shall be interpreted and governed under the laws and in the state and federal courts of the Commonwealth of Massachusetts without regard to its conflicts of laws provisions. You accept the personal jurisdiction and venue of the Commonwealth of Massachusetts courts.
THE CUMULATIVE LIABILITY OF ENTERASYS TO YOU FOR ALL CLAIMS RELATING TO THE PROGRAM, IN CONTRACT, TORT OR OTHERWISE, SHALL NOT EXCEED THE TOTAL AMOUNT OF FEES PAID TO ENTERASYS BY YOU FOR THE RIGHTS GRANTED HEREIN. 8. AUDIT RIGHTS.
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Contents About This Guide Who Should Use This Guide ............................................................................................................... xv How to Use This Guide ...................................................................................................................... xvi Related Documents ........................................................................................................................... xvi Conventions Used in This Guide .......................
Connecting AC and PoE Power .......................................................................................................3-12 AC Power ..................................................................................................................................3-12 C2RPS-PoE Redundant Power System ....................................................................................3-13 Stack Initialization Overview ................................................................................
Figures 1-1 1-2 3-1 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-20 3-21 4-1 4-2 4-3 A-1 A2H124-24P Stackable Switch ..............................................................................................1-3 A2H124-48P Stackable Switch ..............................................................................................1-3 Chassis Bottom, Rubber Feet Placement ..............................................................................
A-11 A-12 A-13 xiv MGBIC-08 Operating Range................................................................................................. A-6 MGBIC-02 Specifications ...................................................................................................... A-7 Compliance Standards..........................................................................................................
About This Guide This guide provides an overview, installation and troubleshooting instructions, and specifications for the Enterasys® SecureStack A2H124‐24P and A2H124‐48P stackable Ethernet switches. For information about the Command Line Interface (CLI) set of commands used to configure and manage the switches, refer to the Enterasys Networks® SecureStack A2 Configuration Guide.
How to Use This Guide How to Use This Guide Read through this guide completely to familiarize yourself with its contents and gain an understanding of the features and capabilities of the stackable Ethernet switches. A general knowledge of data communications networks is helpful when setting up the switches. This preface provides an overview of this guide and the SecureStack A2 manual set, a brief summary of each chapter and defines the conventions used throughout this guide.
Conventions Used in This Guide Conventions Used in This Guide The following conventions are used in this guide: Note: Calls the reader’s attention to any item of information that may be of special importance. Caution: Contains information essential to avoid damage to the equipment. Precaución: Contiene información esencial para prevenir dañar el equipo. Achtung: Verweißt auf wichtige Informationen zum Schutz gegen Beschädigungen.
Conventions Used in This Guide xviii About This Guide
1 Introduction This chapter introduces the A2H124‐24P and A2H124‐48P stackable switches. Important Notice Depending on the firmware version used in the SecureStack A2, some features described in this document may not be supported. Refer to the Release Notes shipped with the switch to determine which features are supported. For information about... Refer to page...
Overview Overview The A2H124‐24P and A2H124‐48P are stackable Fast Ethernet switches, which can be adapted and scaled to help meet your network needs. These switches provide a management platform and uplink to a network backbone for a stacked group of up to eight A2 switches. The two built‐in Small Form Pluggable (SFP) interface slots provide you with the option of installing Mini‐GBICs for 1000BASE‐SX/LX/ELX fiber‐optic connections and 1000BASE‐T copper connections.
Overview Note: The 1000BASE-T built-in RJ45 stacking ports 25 and 26 on the A2H124-24P and ports 49 and 50 on the A2H124-48P can be configured as standard 10/100/1000BASE-T switch ports, using the command “set switch stackport ” when the unit is used in standalone mode.
PoE (Power over Ethernet) Support Stack Connections The switches have front‐panel RJ45 connectors for connections in a stack configuration. The stacking cables used for the connections are standard Category 5 or better UTP cable. Redundant Power Supply Capability The SecureStack A2 has power supply redundancy capability when connected to an optional external redundant power supply (RPS).
Connectivity Table 1-1 Power Device Classifications Class Usage PD Maximum Power Rang Usage None Default 0.44 to 12.95 Watts 1 Optional 0.44 to 3.84 2 Optional 3.84 to 6.49 Watts 3 Optional 6.49 to 12.49 Watts 4 Not Allowed Reserved for Future Use Connectivity The SecureStack A2 connects to Ethernet networks or workstations via the fixed front panel RJ45 connectors and two uplink ports that support optional Mini‐GBICs.
Management Management Management of the module can be either in‐band or out‐of‐band. In‐band remote management is possible using Telnet, Enterasys Networks’ NetSight® management application, or the WebView application. Out‐of‐band management is provided through the DB9 Console port connector on the front panel using a VT100 terminal or a VT100 terminal emulator.
LANVIEW Diagnostic LEDs LANVIEW Diagnostic LEDs LANVIEW diagnostic LEDs serve as an important troubleshooting aid by providing an easy way to observe the status of individual ports and overall network operations. Getting Help For additional support related to the SecureStack A2 or this document, contact Enterasys Networks using one of the following methods: World Wide Web www.enterasys.com/services/support/ Phone 1-800-872-8440 (toll-free in U.S.
Getting Help 1-8 Introduction
2 Network Requirements Before installing the device, review the requirements and specifications in this chapter concerning the following: For information about... Refer to page... 10BASE-T Network 2-1 100BASE-TX Network 2-2 1000BASE-FX Network 2-2 1000BASE-T Network 2-2 Note: The network installation must meet the requirements described in this chapter to ensure satisfactory performance of this equipment. Failure to do so will produce poor network performance.
100BASE-TX Network 100BASE-TX Network When connecting a 100BASE‐TX segment to one of the fixed ports (1 through 24 on A2H124‐24P, 1 through 48 on A2H124‐48P) use Category 5 UTP cabling. The device at the other end of the twisted pair segment must meet IEEE 802.3‐2002 100BASE‐TX Fast Ethernet network requirements for the SecureStack A2 to operate at 100 Mbps. Note: When using the RJ45 ports on the SecureStack A2 for 100 Mbps operation use Category 5 UTP cabling with an impedance between 85 and 111 ohms.
3 Hardware Installation Electrical Hazard: Only qualified personnel should perform installation procedures. Riesgo Electrico: Solamente personal calificado debe realizar procedimientos de instalacion. Elektrischer Gefahrenhinweis: Installationen sollten nur durch ausgebildetes und qualifiziertes Personal vorgenommen werden. Important Notice Read the Release Notes shipped with the switch to check for any exceptions to the supported features and operation documented in this guide.
Considerations Prior to Installation Considerations Prior to Installation When installing the switch, note the following: • Before starting the installation procedure, notify the network administrator of the installation. • Follow the installation procedures in the order as presented in this guide. • Do not connect the switch to the network until you have established the correct IP address. Required Tools A Phillips screwdriver is required to install the switch into a rack.
Installing the Switch on a Flat Surface Installing the Switch on a Flat Surface When installing the switch on a flat surface, the installation of the rubber feet is recommended to prevent the switch from sliding on a flat surface. Installing the rubber feet is optional if you are installing the switch in a rack. To install the rubber feet, proceed to “Installing the Rubber Feet” instructions below. For instructions to rack mount the switch, proceed to “Rack Mounting the Switch” on page 3‐6.
Installing the Switch on a Flat Surface Figure 3-1 Chassis Bottom, Rubber Feet Placement Á À Â Â Â Â 1 Bottom of chassis as seen when chassis is 3 Rubber feet with adhesive backing resting on its back (four) 2 Locations to install the rubber feet (four locations) Note: If a number of switches are being installed in a stack, repeat steps 1 through 4 to install the rubber feet on each switch before continuing with the installation.
Installing the Switch on a Flat Surface Guidelines for Flat Surface Installation Locate the switch within 152 cm (5 ft) of its power source and on a surface as shown in Figure 3‐2. If an optional redundant power system is going to be installed and connected to the 14‐pin Redundant Power Supply input connector on the rear of the switch, refer to the installation guide shipped with the redundant power system. Caution: To ensure proper ventilation and prevent overheating, leave a minimum clearance space of 5.
Rack Mounting the Switch Rack Mounting the Switch To install the switch in a 19‐inch rack, you need: • Two rackmount brackets and mounting screws (rackmount kit) shipped with the switch. • Four user‐supplied screws to attach the switch to a standard 19‐inch rack. Guidelines for Rackmount Installation The installation site must be within reach of the network cabling and meet the requirements listed below: • Appropriate grounded power receptacles must be located within 152 cm (5 ft) of the location.
Connecting Stacking Cables 2. With the mounting brackets attached, position the switch between the vertical frame members of the 19‐inch rack as shown in Figure 3‐4. Then fasten the switch securely to the frame using four mounting screws (user supplied).
Connecting Stacking Cables Figure 3-5 Stacking Cable Connections à  1 1 2 3 4 5 6 7 8 9 10 11 12 11 13 13 14 15 16 17 18 19 20 21 22 23 24 A2H124-24P 23 25 Console CPU MGR RPS 1 3 5 7 9 11 13 15 17 19 21 23 2 4 6 8 10 12 14 16 18 20 22 24 25/Up 26/Down 27 26 28 2 12 14 Stack 24 À  1 1 2 3 4 5 6 7 8 9 10 11 12 11 13 13 14 15 16 17 18 19 20 21 22 23 24 A2H124-24P 23 25 Console CPU MGR RPS 1 2 3 4 5 6 7 8 9
Configuring Switches in a Stack Configuring Switches in a Stack The information in the following sections is important to understand A2 switch operation and installations in a stack installation. About SecureStack A2 Switch Operation in a Stack The SecureStack A2 products are stackable switches that can be adapted and scaled to help meet your network needs. These switches provide a management platform and uplink to a network backbone for a stacked group of up to eight A2 switches.
Configuring Switches in a Stack 3. The management election process uses the following precedence to assign a management switch: a. Previously assigned/elected management switch b. Management assigned priority (values 1–15) c. Hardware preference level d. Highest MAC Address Recommended Procedures for New and Existing Stacks Important The following procedures assume that all switches have a clean configuration from manufacturing.
Configuring Switches in a Stack 3. Once the desired master switch has been selected, the current configuration will be saved and the stack will automatically reset. You must now move the console cable to the new management unit. 4. Stack members other than the management unit will only identify their unit number through their console port. 5.
Connecting AC and PoE Power Connecting AC and PoE Power AC Power Note: The power supply in the switch has automatic voltage sensing that allows connection to power sources ranging from 100 to 240 VAC. To connect a switch to the AC power source, refer to Figure 3‐6 and proceed as follows: 1. Plug the power cord into the switch AC power connector. 2. Plug the other end of the power cord into a dedicated grounded AC outlet (not shown). The type of power outlet and power cord are country‐dependent.
Connecting AC and PoE Power 3. Observe the power CPU LED (not shown), located on the front panel. During the initialization, the CPU LED will start by illuminating solid amber, then start blinking green, then blinking amber, then blinking green again until the end of the initialization, and then turns solid green. Note: If the CPU LED illuminates solid red, there was a critical failure. For more information about the LED indications and troubleshooting, refer to Chapter 4.
Connecting to Console Port for Local Management Caution: To prevent damaging the switch, ONLY connect a Power over Ethernet-compliant Redundant Power System (C2RPS-POE) to the redundant power supply connector. The switch is only compatible with the SecureStack C2RPS-POE redundant power supply system. Precaución: Conecte una fuente de poder redundante (RPS) SecureStack PoE (C2RPSPOE) al cable de corriente. De lo contrario, el dispositivo puede dañarse.
Connecting to Console Port for Local Management What Is Needed The following is a list of user‐supplied DTE interface cables that may be needed to connect the DB9 male Console port connector on the switch. The cables are terminated by a DB9 female connector at one end, and by one of three type connectors at the other end, depending on the type connection needed for the remote device.
Connecting to Console Port for Local Management Connecting to an IBM or Compatible Device To connect an IBM PC or compatible device, running the VT terminal emulation, to an Enterasys switch Console port (Figure 3‐9), proceed as follows: 1. Connect the DB9 female connector at one end of the cable (not supplied) to the Console port on the Enterasys switch. (If there is a switch designated as the Manager, connect to its Console port.) 2.
Connecting to Console Port for Local Management Connecting to a VT Series Terminal To connect a VT Series terminal to an Enterasys switch Console port (Figure 3‐10), use a UTP serial interface cable terminated with a DB9 female connector and a DB25 female connector and proceed as follows: 1. Connect the DB9 female connector at one end of cable to the Console port DB9 male connector on the Enterasys switch. (If there is a switch designated as the Manager, connect to its Console port.) 2.
Connecting to Console Port for Local Management Connecting to a Modem To connect a modem to an Enterasys Networks switch console port (Figure 3‐11), use a UTP cable terminated with a DB9 female connector and a DB25 male connector, and proceed as follows: 1. Connect the DB9 female connector at one end of the cable to the Console port DB9 connector on the Enterasys switch. (If there is a switch designated as the Manager, connect to its Console port.) 2.
Connecting to the Network Connecting to the Network The following procedures cover the cable connections from the network or other devices to the switch RJ45 ports or any installed optional Mini‐GBIC. • Connecting UTP Cables on page 3‐19 • Connecting Fiber‐Optic Cables to MT‐RJ Ports on page 3‐27 • Connecting Fiber‐Optic Cables to LC Ports on page 3‐30 Connecting UTP Cables The fixed RJ45 front panel ports are 10/100 Mbps ports and have auto polarity detect.
Connecting to the Network Figure 3-12 Connecting a UTP Cable Segment to RJ45 Port 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 1 15 16 2 17 18 Â 3 19 20 21 22 4 5 23 6 7 24 8 2 À Á 9 10 11 12 11 12 1 3. RJ45 connector 2 Port 8 3 Port 8 Link/Activity LED Verify that a link exists by checking that the Link/Activity LED is ON (solid green or blinking green).
Connecting to the Network Figure 3-13 Figure 3-14 Figure 3-15 Four-Wire Crossover Cable RJ45 Pinouts for 10/100BASE-TX MDI MDI-X RX+ 1 1 RX+ RX 2 2 RX TX+ 3 3 TX+ TX 6 6 TX Four-Wire Straight-Through Cable RJ45 Pinouts for 10/100BASE-TX MDI MDI-X RX+ 1 1 TX+ RX 2 2 TX TX+ 3 3 RX+ TX 6 6 RX Eight-Wire Crossover Cable RJ45 Pinouts for 1000BASE-TX MDI MDI TX1+ 1 1 TX1+ RX1- 2 2 RX1- TX2+ 3 3 TX2+ TX3+ 4 4 TX3+ RX3- 5 5 RX3- RX2- 6 6 RX
Installing Optional Mini-GBICs Figure 3-16 Eight-Wire Straight-Through Cable RJ45 Pinouts for 1000BASE-TX MDI MDI-X TX1+ 1 1 TX2+ RX1- 2 2 RX2- TX2+ 3 3 TX1+ TX3+ 4 4 TX4+ RX3- 5 5 RX4- RX2- 6 6 RX1- TX4+ 7 7 TX3+ RX4- 8 8 RX3- Installing Optional Mini-GBICs This section describes how to install Mini‐GBICs in any of the SFP port slots (27 and 28 of A2H124‐24P; 51 and 52 of A2H124‐48P). It is recommended that the options be installed first in a new installation.
Installing Optional Mini-GBICs Caution: Carefully follow the instructions in this manual to avoid damaging the Mini-GBIC and the device. The Mini-GBIC and the device are sensitive to static discharges. Use an antistatic wrist strap and observe all static precautions during this procedure. Failure to do so could result in damage to the Mini-GBIC or the switch. Always leave the Mini-GBIC in the antistatic bag or an equivalent antistatic container when not installed.
Installing Optional Mini-GBICs Figure 3-17 Mini-GBIC with RJ45 Connector 25 26 27 25 /U p 28 Ã Á Â 1 SFP Slot 2 Mini-GBIC (MGBIC-02) 3-24 Hardware Installation 26 /D St ac k ow n A2 27 H1 28 24 -24 P À 3 Release tab 4 Link/Activity LED
Installing Optional Mini-GBICs Figure 3-18 Mini-GBIC with MT-RJ Connector 25 26 27 25 /U p 28 Ã Á 26 /D St ac k ow n A2 27 H1 28 24 -24 P À Â 1 SFP Slot 2 Mini-GBIC (MGBIC-MT01) 3 Release tab 4 Link/Activity LED SecureStack A2 PoE Installation Guide 3-25
Installing Optional Mini-GBICs Figure 3-19 Mini-GBIC with LC Connector 25 26 27 25 /U p 28 Ã 26 /D St ac k ow n A2 27 H1 28 24 -24 P Á À Â 1 SFP Slot 2 Mini-GBIC (MGBIC-LC01,-LC03, -LC09, MGBIC-08) 3 Release tab 4 Link/Activity LED Removing the Mini-GBIC Caution: Do NOT remove a Mini-GBIC from a slot without releasing the locking tab located under the front bottom end of the Mini-GBIC. This can damage the Mini-GBIC.
Installing Optional Mini-GBICs To remove a Mini‐GBIC from a port slot, refer back to Figure 3‐17, Figure 3‐18, and Figure 3‐19, and proceed as follows: 1. Attach your antistatic wrist strap (refer to the instructions in your antistatic wrist strap package) before removing the Mini‐GBIC. 2. Remove the cables connected to the Mini‐GBIC. 3. Locate the release tab under the front end of the Mini‐GBIC. For the type of Mini‐GBIC shown in: 4. a.
Installing Optional Mini-GBICs The transmit strand from a switch port connects to the receive port of a fiber‐optic Gigabit Ethernet device at the other end of the segment. The receive strand of the applicable MT‐RJ port connects to the transmit port of the fiber‐optic Gigabit Ethernet switch. Enterasys Networks recommends labeling fiber‐optic cables to indicate receive and transmit ends. Many cables are pre‐labeled, providing matching labels or tapes at both ends of each strand of cable.
Installing Optional Mini-GBICs Figure 3-20 Cable Connection to MT-RJ Multimode Fiber-Optic Connectors 25 26 27 25 /U p 28 Ã 26 /D St ac k Á ow n A2 27 H1 28 24 -24 P À Â 1 Mini-GBIC MT-RJ port connector 2 MT-RJ cable connector 3 Release tab 4 Link/Activity LED 3. Plug the other end of the cable into the appropriate port on the other device. Some cables may be terminated at the other end with two separate connectors, one for each fiber‐optic strand.
Installing Optional Mini-GBICs Connecting Fiber-Optic Cables to LC Ports Warning: Fiber-optic Mini-GBICs use Class 1 lasers. Do not use optical instruments to view the laser output. The use of optical instruments to view laser output increases eye hazard. When viewing the output optical port, power must be removed from the network adapter. Advertencia: Los Mini-GBICS de fibra optica usan lasers de clase 1. No se debe usar instrumentos opticos para ver la potencia laser.
Installing Optional Mini-GBICs 1. Remove the protective covers (not shown) from the front panel LC fiber‐optic port (port 27 in this example) and from the connectors on each end of the cable. Note: Leave the protective covers in place when the connectors are not in use to prevent contamination. 2. Insert the LC cable connector into the Mini‐GBIC LC connector until it clicks into place. Note: To remove the LC cable connector, press on its release tab and pull it out of Mini-GBIC LC connector.
Completing the Installation 4. Verify that a link exists by checking that the port Link/Activity LED is on (blinking green or solid green). If the Link/Activity LED is off, perform the following steps until it is on: a. Verify that the device at the other end of the segment is ON and connected to the segment. b. If there are separate fiber‐optic connections on the other device, check the crossover of the cables. Swap the cable connections if necessary. c.
4 Troubleshooting This chapter provides information concerning the following: For information about... Refer to page... Using LANVIEW 4-2 Troubleshooting Checklist 4-7 Using the Reset Password Switch 4-9 This device contains a battery that is not considered a user replaceable part. If the battery needs to be replaced, contact customer service for repair. Caution: There is a risk of explosion if the battery is replaced with an incorrect type.
Using LANVIEW Using LANVIEW These switches support the Enterasys Networks built‐in LANVIEW LED visual diagnostic and status monitoring system. The LANVIEW LEDs on both the A2H124‐24P and A2H124‐48P are located in similar locations as shown on A2H124‐24P in Figure 4‐1. The LANVIEW LEDs on the A2H124‐48P are shown in Figure 4‐2. These LEDs allow you to quickly observe network status for diagnosing switch and network problems.
Using LANVIEW Note: The terms flashing, blinking, and solid used in Table 4-1 indicate the following: Flashing: LED is flashing randomly. Blinking: LED is flashing at a steady rate (approximately 50% on, 50% off). Solid: LED is on steady and not pulsing. Table 4-1 LANVIEW LEDs LED Color State Recommended Action CPU Off Power disconnected. If the LED remains off after connecting AC power or DC power from an RPS, check the following: 1.
Using LANVIEW Table 4-1 LANVIEW LEDs (continued) LED Color State Recommended Action DOWN Off No valid connection to switch stackup connector. 1. Make sure the switch connected to the stackup connector is powered on. 2. Replace cable with a known good one. 3. If the problem still exists, contact Enterasys Networks for technical support. Green Solid. Valid connection to switch stackup connector. None. Flashing. Information is being transferred via the stacking cable.
Using LANVIEW Table 4-1 LANVIEW LEDs (continued) LED Color State Recommended Action RPS Off The RPS LED remains off regardless if the RPS is attached or not. The LED being in its off state is not an indication that the RPS is not functioning properly and won’t supply power in the event of an AC power supply failure. None. See Amber state below. Amber Solid.The switch internal power supply failed, and the RPS is providing the proper power to the switch. 1.
Using LANVIEW Table 4-1 LED LANVIEW LEDs (continued) Color State Recommended Action Amber Solid. Port is linked, but traffic is not being received or transmitted by the interface. PoE power has failed. 1. Check the attached powered device to see if it is defective. PoE power may have been deactivated because of excessive power requirement or deactivated by configuration. 2. Internal power supply failed, contact Enterasys Networks for technical support. Power Supply failed. Blinking.
Troubleshooting Checklist Troubleshooting Checklist If the device is not working properly, refer to Table 4‐2 for a checklist of problems, possible causes, and recommended actions to resolve the problem. Table 4-2 Troubleshooting Checklist Problem Possible Cause Recommended Action All LEDs are OFF. Loss of power. Ensure that the SecureStack A2 was installed properly according to the installation instructions in Chapter 3.
Troubleshooting Checklist Table 4-2 Troubleshooting Checklist (continued) Problem Possible Cause Recommended Action Cannot contact the SecureStack A2 through in-band management. IP address not assigned. Refer to the SecureStack A2 Configuration Guide for the IP address assignment procedure. Port is disabled. This is normal if the switch is a Member in a stack. If operating as a standalone switch or as the Manager in a stack, enable the port.
Using the Reset Password Switch Using the Reset Password Switch If you forget the SecureStack A2 login password, use the Reset password switch as described in the following procedure. Figure 4-3 Reset Password Switch Console CPU MGR RPS À 1 Reset password switch To reset the SecureStack A2 password, refer to Figure 4‐3 and proceed as follows: Note: Notify the system manager before changing the password. 1. Press‐and‐hold the Reset Password switch while the switch is operational.
Using the Reset Password Switch 4-10 Troubleshooting
A Specifications This appendix provides information about the following: For information about... Refer to page... Switch Specifications A-1 Mini-GBIC Input/Output Specifications A-4 Gigabit Ethernet Specifications A-4 MGBIC-02 Specifications (1000BASE-T) A-7 Regulatory Compliance A-8 Enterasys Networks reserves the right to change the specifications at any time without notice.
Switch Specifications Table A-1 A2H124-24P Switch Specifications (continued) Item Specification AC Input Specifications Input Voltage 100 to 240 VAC Input Currrent 5.1 A Max Frequency 50 to 60 Hz Processors/Memory Processor MPC8241, 266 MHz processor Dynamic Random Access Memory (DRAM) 128 MB FLASH Memory 16 MB Physical Dimensions 4.4 H x 44.1 W x 21.0 D cm (1.7 H x 17.4 W x 8.27 D in.) Approximate Weight Gross: 6.8 kg (14.99 lb) (shipping carton containing one module) Net: 5.
Switch Specifications Table A-2 A2H124-48P Switch Specifications Item Specification RJ45 ports 1 through 48 Forty-eight 10/100BASE-T compliant ports with auto-sensing and auto-negotiation via the RJ45 connections. RJ45 ports 49 and 50 Two 10/100/1000BASE-TX compliant ports with auto-sensing and auto-negotiation via RJ45 connectors for stacking. In standalone mode, these ports can be used for host connections and interswitch links.
Mini-GBIC Input/Output Specifications Mini-GBIC Input/Output Specifications The Mini‐Gigabit Ethernet Card (Mini‐GBIC) port interface slots can support 1‐Gbps fiber‐optic connections as described in Table A‐3. The optional Mini‐GBICs are hot swappable. Table A-3 Mini-GBIC Input/Output Port Specifications Item Specification MGBIC-LC01 Provides one LC fiber-optic multimode port that is compliant with the 1000BASE-SX standard LC connector.
Gigabit Ethernet Specifications Table A-5 MGBIC-LC01/MGBIC-MT01 Operating Range Item Modal Bandwidth @ 850 nm Range 62.5 µm MMF 160 MHz/km 2-220 Meters 62.5 µm MMF 200 MHz/km 2-275 Meters 50 µm MMF 400 MHz/km 2-500 Meters 50 µm MMF 500 MHz/km 2-550 Meters MGBIC-LC03 Specifications (1000BASE-SX) Table A-6 MGBIC-LC03 Optical Specifications Item 62.5/125 µm MMF 50/125 µm MMF Transmit Power (minimum) -9.5 dBm -9.
Gigabit Ethernet Specifications MGBIC-LC09 Specifications (1000BASE-LX) Table A-8 MGBIC-LC09 Optical Specifications Item 62.5 µm MMF 50 µm MMF 10 µm SMF Transmit Power (minimum) -11.5 dBm -11.5 dBm -9.5 dBm Receive Sensitivity -20 dBm -20 dBm -20 dBm Link Power Budget 8.5 dBm 8.5 dBm 10.5 dBm Table A-9 MGBIC-LC09 Operating Range Item Modal Bandwidth @ 1300 nm Range 62.
Console Port Pinout Assignments MGBIC-02 Specifications (1000BASE-T) Table A-12 MGBIC-02 Specifications Item Specification Supported Cable: Type Copper, Category 5 UTP Maximum Length Up to 100 meters Connector RJ45 Data Rate 1 Gbps, IEEE 802.
Regulatory Compliance Regulatory Compliance The A2H124‐24P and A2H124‐48P meet the safety and electromagnetic compatibility (EMC) requirements listed in Table A‐13: Table A-13 A-8 Specifications Compliance Standards Regulatory Compliance Standards Safety UL 60950, CSA C22.2 No. 60950, 73/23/EEC, EN 60950, IEC 60950, EN 60825, 21 CFR 1040.10 Electromagnetic Compatibility (EMI) (Class A) 47 CFR Parts 2 and 15, CSA C108.
Index Numerics H 1000BASE-SX/LX network connections requirements for 2-2 1000BASE-T requirements for 2-2 100BASE-TX requirements 2-2 10BASE-T connection 3-19 requirements 2-1 High-Speed Stack Connections introduction to 1-4 High-speed stacking cables installation of 3-7 I A2H124-24P overview of 1-2 A2H124-48P overview of 1-2 Installation connecting to the network 3-19 high-speed stacking cables 3-7 in a rack 3-6 new stack 3-10 new switch in existing stack 3-11 optional Mini-GBIC 3-22 Installation site
Pinout assignments console port A-7 UTP 4-wire crossover cable 3-21 UTP 4-wire straight-through cable 3-21 UTP 8-wire crossover cable 3-21 UTP 8-wire straight-through cable 3-22 PoE (Power over Ethernet) introduction to 1-4 Power connection AC 3-12 RPS DC 3-13 R Rackmount installation guidelines for 3-6 Receive/Transmit LEDs viewing of 4-2 Redundant Power Supply Capability introduction to 1-4 Regulatory Compliance A-8 Related manuals xvi S Safety requirements A-8 Specifications A-1 A2H124-24 A-1 A2H124-48
