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Enterasys Networks A2H124-48P - page 1
7.5x9-inch cover with bleed on 4 sides Secur eStack A2 PoE Fast Ether net Switches Hardware Installation Guide A2H124-24P A2H124-48P P/N 9034154-03 ...
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i Notice Enterasys Networks reserv es the right to make changes in specifica tions and other information contained in this document and its web site without prior notice. The reader should in all cases consult Enterasys Netw orks ...
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ii REGULATORY COMPLIANCE INFORMATION FEDERAL COMMUNICATIONS CO MM ISSION (FCC) NO TICE This device com plies with Pa rt 15 of the FC C rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, ? ...
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iii ELECTROMAGNETIC COMPATIBILITY (EMC) This product complies with the following: 47 CFR Pa rt s 2 and 15, CSA C108.8, 89/336/EEC, EN 55022, EN 6100 0 ‐ 3 ‐ 2, EN 61000 ‐ 3 ‐ 3, EN 55024, AS/NZS CISPR 22, VCCI V ‐ 3. COMPATIBILIDAD ...
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iv ...
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v VCCI NOTICE This is a class A product based on the standard of the Vo l u n t a r y Control Coun cil for Interference by Information Te c h n o l o g y Equipment (VCCI). If this equipment is used in a domes tic environmen t, ...
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vi DECLARATION OF CONFORMITY Application of Co uncil Directiv e(s): 89/336/EEC 73/23/EEC Manufacturer’s Na me: Enterasys Networks, Inc. Manufacturer ’ s Address: 50 Minuteman Road Andover, MA 01810 USA European Representativ e Address: Enterasys Networks, Ltd . Nexus House, Newbury Bus ...
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vii ENTERASYS NETWORKS, INC. FIRMWARE LICENSE AGREEMENT BEFORE OPENING OR UTILIZING THE ENCL OSED PRODUCT , CAREFULL Y READ THIS LICENSE AGREEMENT . This document is an agreement (“ Agreement”) betwee n the end user (“Y ou”) and Enterasys Networks, Inc. ...
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viii 3. APPLICABLE LAW. This Agreem ent shall be interpreted and governed under the laws and in the state and federal cour ts of the Commonwealth of Massachusetts wit hout regard to its conflicts of laws provisions. You ac ...
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ix THE CUMULA TIVE LIAB ILITY OF ENTERASYS TO YOU FOR ALL CLAIMS RELA TING TO THE PROGRAM, IN CONTRACT , TORT OR OTHER WISE, SHALL NOT EX CEED THE TOT AL AMOUN T OF FEES PA I D TO ENTERASYS BY YOU FOR THE RIGHTS ? ...
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x ...
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xi Contents About This Guide Who Should Use This Guide ........ ................... .................... ................ ................... ................... .......... xv How to Use This Guide ................ ................ ................... .................... ................ .................. ............. xvi Related Documents ..... ...
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xii Connecting AC and PoE Power ............. ................... ................ .................... ................... ............ .... 3-12 AC Power ........................... ................ ................... .................... ................ ................... . ............ 3-12 C2RPS-PoE Redundant Power Syst em ... ............. ...
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xiii Figures 1-1 A2H124-24P Stackable Switch .. ................... ................... ................. ................... .................. 1-3 1-2 A2H124-48P Stackable Switch .. ................... ................... ................. ................... .................. 1-3 3-1 Chassis Bottom, Rubber Feet Placement ..... ................. ...
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xiv A-11 MGBIC-08 Operating Range ............ ....................... ...................... ....................... ................. A- 6 A-12 MGBIC-02 Specifications ........... ................... ................ .................... ................... ............... .. A-7 A-13 Compliance Standards ............... ................... ..... ...
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Enterasys Networks A2H124-48P - page 17
SecureStack A2 PoE Installation Guide xv About This Guide This guide provides an ov erview , installation and troubleshooting instructio ns, and specifications for the Enterasys ® SecureStack A2H124 ‐ 24P and A2H124 ‐ 48P stackable Ethernet switches. For inform ...
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How to Use This Guide xvi About This Guide How to Use This Guide Read through this guide completely to familiarize you rs el f with its contents and gain an understanding of the features and capabilities of the stackable Ethernet switches. A gene ...
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Conventions Used in This Guide SecureStack A2 PoE Installation Guide xvii 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 import ance. Caution: Contains information essential to avoid damage to the equ ...
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Conventions Used in This Guide xviii About This Guid e ...
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SecureStack A2 PoE Installation Guide 1-1 1 Introduction This chapter introduces the A2H124 ‐ 24P and A2H1 24 ‐ 48P stackable switches. Import ant Notice Depending on th e firmware version used in the Secu reS tack A2, some features described in this document may not be supported. Refer to the Release Notes shipp ...
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Enterasys Networks A2H124-48P - page 22
Overview 1-2 Introduction Overview The A2H124 ‐ 24P and A2H124 ‐ 48P are stackable Fast Ethernet switches, which can be adapted and scaled to help meet you r network needs. These switches provide a management platform and uplink t ...
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Enterasys Networks A2H124-48P - page 23
Overview SecureStack A2 PoE Installation Guide 1-3 Figure 1- 1 A2H124-24P S tac kable Switch Figure 1-2 A2H124-48P S tac kable Switch Note: The 1000BASE-T built-in RJ45 stacking port s 25 and 26 on the A2H124-24P and ports 49 and 50 on the A2H124-48P can be configured as st and ard 10/100/1000BASE-T switch ports, using the command “set switch sta ...
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Enterasys Networks A2H124-48P - page 24
PoE (Power over Ethernet) Support 1-4 Introduction S tack Connections The switches hav e front ‐ panel RJ45 connectors for connections in a stack configuration. The stacking cables used for the connections are standard Category 5 or better UTP ...
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Enterasys Networks A2H124-48P - page 25
Connectivity SecureStack A2 PoE Installation Guide 1-5 Connectivity The SecureStack A2 connects to Ethernet netw orks or workstations via the fixed front panel RJ45 connectors and two uplink ports that support optional Mini ‐ GBICs. At the time ...
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Enterasys Networks A2H124-48P - page 26
Management 1-6 Introduction Management Management of the module can be eithe r in ‐ band or out ‐ of ‐ band. In ‐ band remote management is possible us ing Te l n e t , Enterasys N etworks’ NetSight ® management application, or the We b V i e w ? ...
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Enterasys Networks A2H124-48P - page 27
LANVIEW Diagnostic LEDs SecureStack A2 PoE Installation Guide 1-7 LANVIEW Diagnostic LEDs LANVIEW diagnostic LEDs serv e as an important troubleshooting aid by providing an easy wa y to observe the status of individual ports and overall netw ork operatio ...
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Getting Help 1-8 Introduction ...
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SecureStack A2 PoE Installation Guide 2-1 2 Network Requirements Before inst alling the device, review the requirements and specif ications in this chapter concerning the following: 10BASE-T Network When connecting a 10BASE ‐ TX segment to one of the RJ45 ...
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Enterasys Networks A2H124-48P - page 30
100BASE-TX Network 2-2 Network Requir ements 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 A2H1 24 ‐ 48P) use Category 5 UTP cabling. The device at ...
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Enterasys Networks A2H124-48P - page 31
SecureStack A2 PoE Installation Guide 3-1 3 Hardware Installation This chapter provides instructions to install the A2H124 ‐ 24P and A2H124 ‐ 48P. Unless otherwise noted, the instructions apply to all switches. Follow the order of the sections li ...
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Enterasys Networks A2H124-48P - page 32
Considerations Prior to Installation 3-2 Hardware Installation Considerations Prior to Inst allation When installing the switch, note the following: •B e f o r e starting the installation procedure, notify the network administrator of the installation. •F o l l o w the ...
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Enterasys Networks A2H124-48P - page 33
Installing the Switch on a Flat Surface SecureStack A2 PoE Installation Guide 3-3 Inst alling the Switch on a Flat Surface When installing the switch on a flat surface, the installa tion of the rubber feet is recommended to prev ent the switch from sliding on ? ...
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Enterasys Networks A2H124-48P - page 34
Installing the Switch on a Flat Surface 3-4 Hardware Installation Figure 3-1 Chassis Bottom, Rubber Feet Placement 1 Bottom of chassis as seen when chassis is resting on its back 3 Rubber feet with a dhesive backing (four) 2 Locations to install the rubber feet (four locations) Note: If a number of switches are being installed in a stack, repeat st ...
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Enterasys Networks A2H124-48P - page 35
Installing the Switch on a Flat Surface SecureStack A2 PoE Installation Guide 3-5 Guidelines for Flat Surface Inst allation Locate the switch within 152 cm (5 ft) of its pow er source and on a surface as shown in Figure 3 ‐ 2 . If an optional redundant ...
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Enterasys Networks A2H124-48P - page 36
Rack Mounting the Switch 3-6 Hardware Installation Rack Mounting the Switch To install the switch in a 19 ‐ inch ra ck, yo u need: •T w o rackmount brackets and mounting screws (rackmount kit) shipped with the switch. •F o u r user ‐ supplied screws ...
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Enterasys Networks A2H124-48P - page 37
Connecting Stacking Cables SecureStack A2 PoE Installation Guide 3-7 2. With the mou nting brackets attached, position the switch between the vert ica l frame members of the 19 ‐ inch rack as shown in Figu re 3 ‐ 4 . Then fasten the switch secure ...
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Enterasys Networks A2H124-48P - page 38
Connecting Stacking Cables 3-8 Hardware Installation Figure 3-5 St acking Cable Connections After connecting the cables to the stacking ports, proceed to “ Configuring Switches in a Stack ” on page 3 ‐ 9 for instructions. 1 Category 5 or better UTP cable 4 ST ACK UP conne ...
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Enterasys Networks A2H124-48P - page 39
Configuring Switches in a Stack SecureStack A2 PoE Installation Guide 3-9 Configuring Switches in a S t ack The information in the following sections is important to understand A2 switch operation and installations in a stack installation. About SecureSt ack A2 Swi tch Operatio ...
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Enterasys Networks A2H124-48P - page 40
Configuring Switches in a Stack 3-10 Hardware Installa tion 3. The management election process uses the f ollowing precedence to assign a management switch: a. Previously assigned/elected manage ment switch b. Management assigned priority (v alues 1–15) c. Hardware pr ...
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Enterasys Networks A2H124-48P - page 41
Configuring Switches in a Stack SecureStack A2 PoE Installation Guide 3-11 3. Once the desired master swi tch has been selected, the current configuration wil l be saved and the stack will automatically reset. Yo u must now move the console cable ...
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Enterasys Networks A2H124-48P - page 42
Connecting AC and PoE Power 3-12 Hardware Installa tion Connecting AC and PoE Power AC Power To connect a switch to the AC pow er source, refer to Figu re 3 ‐ 6 and proceed as follows: 1. Plug the power cord into the swit ch AC power connector . 2. Plug ? ...
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Enterasys Networks A2H124-48P - page 43
Connecting AC and PoE Power SecureStack A2 PoE Installation Guide 3-13 3. Observe the pow er CPU LED (not shown), located on the front panel. During the initialization, the CPU LED will start by illuminating sol id amber, then start blinking ...
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Enterasys Networks A2H124-48P - page 44
Connecting to Console Port for Local Management 3-14 Hardware Installa tion If you are installing the switch as a standalone switch, proceed to “ Connecting to Con sole Po r t for Local Management ” on page 3 ‐ 14. If you are installing switche ...
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Enterasys Networks A2H124-48P - page 45
Connecting to Console Port for Local Management SecureStack A2 PoE Installation Guide 3-15 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. ? ...
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Enterasys Networks A2H124-48P - page 46
Connecting to Console Port for Local Management 3-16 Hardware Installa tion Connecting to an IBM or Comp atible Device To connect an IBM PC or compatible devi ce, running the VT terminal emulation, to an Enterasys switch Console port ( Figure 3 ‐ 9 ), proceed as ? ...
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Enterasys Networks A2H124-48P - page 47
Connecting to Console Port for Local Management SecureStack A2 PoE Installation Guide 3-17 Connecting to a VT Series T erminal To connect a VT Series terminal to an Enterasys switch Console port ( Figure 3 ‐ 10 ), use a UTP serial interface cable terminated with a ...
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Enterasys Networks A2H124-48P - page 48
Connecting to Console Port for Local Management 3-18 Hardware Installa tion Connecting to a Modem To connect a modem to an Enterasys Netw orks switch console port ( Figure 3 ‐ 11 ), use a UTP cable terminated with a DB9 female connector and a DB25 male ...
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Enterasys Networks A2H124-48P - page 49
Connecting to the Network SecureStack A2 PoE Installation Guide 3-19 Connecting to the Network The following procedures cover the cable connections from the ne twork or other devices to the switch RJ45 ports or any installed optional Mini ‐ GBIC. • Conne ...
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Enterasys Networks A2H124-48P - page 50
Connecting to the Network 3-20 Hardware Installa tion Figure 3-12 Connecting a UTP Cable Segme nt to RJ45 Port 3. V erify that a link exists by che cking that the Link/Act ivity LED is ON (solid green or blinking green). 4. If the Link/Activity LED is OFF , ...
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Enterasys Networks A2H124-48P - page 51
Connecting to the Network SecureStack A2 PoE Installation Guide 3-21 Figure 3-13 Four-Wire Cros sover Cable RJ45 Pinout s for 10/100BASE-TX Figure 3-14 Four-Wire S traight-Through Cable RJ45 Pinout s for 10/100BASE-TX Figure 3-15 Eight-W ire Crossover Cable RJ45 Pinout s for 1000BASE-TX TX+ TX RX+ RX 2 1 3 6 TX+ TX 2 1 3 6 RX+ RX MDI MD ...
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Enterasys Networks A2H124-48P - page 52
Installing Optional Mini-GBICs 3-22 Hardware Installa tion Figure 3-16 Eight-W ire Straight-Thr ough Cable RJ45 Pinout s for 1000BASE-TX Inst alling Optional Mini-GBICs This section describes how to install Mini ‐ GBICs in any of the SFP port slots (27 and 28 of A2H124 ‐ 24 ...
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Enterasys Networks A2H124-48P - page 53
Installing Optional Mini-GBICs SecureStack A2 PoE Installation Guide 3-23 Prep aration Before inst alling the Mini ‐ GBIC, pr oceed as follows: 1. Before removing the Mini ‐ GBIC from the antistatic packaging, it is recommended that you use an antistatic wri ...
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Enterasys Networks A2H124-48P - page 54
Installing Optional Mini-GBICs 3-24 Hardware Installa tion Figure 3-17 Mini-GBIC with RJ 45 Connector 1 SFP Slot 3 Release tab 2 Mini-GBIC (MGBIC-02) 4 Link/Activity LED 27 28 A2H124-24P 25 26 27 28 25/Up 26/Down Stack  Á À à ...
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Enterasys Networks A2H124-48P - page 55
Installing Optional Mini-GBICs SecureStack A2 PoE Installation Guide 3-25 Figure 3-18 Mini-GBIC with MT -RJ Connector 1 SFP Slot 3 Release tab 2 Mini-GBIC (MGBIC-MT01) 4 Link/Activity LED 27 28 A2H124-24P 25 26 27 28 25/Up 26/Down Stack Á À Ã Â ...
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Enterasys Networks A2H124-48P - page 56
Installing Optional Mini-GBICs 3-26 Hardware Installa tion Figure 3-19 Mini-GBIC with LC Connector Removing the Mini-GBIC 1 SFP Slot 3 Release tab 2 Mini-GBIC (MGBIC-LC01,-LC03, -LC09, MGBIC-08) 4 Link/Activity LED 27 28 A2H124-24P 25 26 27 28 25/Up 26/Down Stack  Á À à Caution: Do NOT remove a Mini-GBIC from a slot without relea sing the lock ...
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Enterasys Networks A2H124-48P - page 57
Installing Optional Mini-GBICs SecureStack A2 PoE Installation Guide 3-27 To remove a Mi ni ‐ GBIC from a port slot, refer back to Figure 3 ‐ 17 , Figure 3 ‐ 18 , and Figure 3 ‐ 19 , and proceed as follows: 1. Attach you r antistatic wrist strap (refer ? ...
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Enterasys Networks A2H124-48P - page 58
Installing Optional Mini-GBICs 3-28 Hardware Installa tion 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 se gment. The receive strand of the ? ...
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Enterasys Networks A2H124-48P - page 59
Installing Optional Mini-GBICs SecureStack A2 PoE Installation Guide 3-29 Figure 3-20 Cable Connec tion to MT -RJ Multimode Fiber-Optic Connectors 3. Plug the other end of the cable into the appropriate port on the other device. Some cables may be terminated at the ...
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Enterasys Networks A2H124-48P - page 60
Installing Optional Mini-GBICs 3-30 Hardware Installa tion Connecting Fiber-Opti c Cables to LC Port s This section describes how to connect •a 1000BASE ‐ SX mult imode fiber ‐ optic segment from the network or other devices to an LC port connector of ...
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Enterasys Networks A2H124-48P - page 61
Installing Optional Mini-GBICs SecureStack A2 PoE Installation Guide 3-31 1. Remove the protectiv e 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. 2. ...
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Enterasys Networks A2H124-48P - page 62
Completing the Installation 3-32 Hardware Installa tion 4. V erify that a link exists by che cking that the port Link/Act ivity LED is on (blinking green or solid green). If the Link/Activity LED is off, perform the followi ng steps u ...
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Enterasys Networks A2H124-48P - page 63
SecureStack A2 PoE Installation Guide 4-1 4 T roubleshooting This chapter provides information concerning the following: This device contains a battery that is not considered a user replaceable part. If the battery needs to be replaced, contact ? ...
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Enterasys Networks A2H124-48P - page 64
Using LANVIEW 4-2 Troubleshooting 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 s ...
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Enterasys Networks A2H124-48P - page 65
Using LANVIEW SecureStack A2 PoE Installation Guide 4-3 Note: The terms flashing , blinking , and solid used in Ta b l e 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. T able 4-1 LANVIEW LEDs LED Color State Recom ...
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Enterasys Networks A2H124-48P - page 66
Using LANVIEW 4-4 Troubleshooting DOWN Off No valid conn ection 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 . V alid co nnection to switch stackup connecto ...
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Enterasys Networks A2H124-48P - page 67
Using LANVIEW SecureStack A2 PoE Installation Guide 4-5 RPS Off The RPS LED remains off regardless if the RPS is atta ched or not. The L ED being in its off st ate is not a n indication that the RPS is not functioning properly and won’t supply power in the event of an AC power supply failure. See Amber state below . None. Amber Solid .The switch ...
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Enterasys Networks A2H124-48P - page 68
Using LANVIEW 4-6 Troubleshooting Amber Solid. Port is linked, but traf fic is not being received or transmitted by the interface. PoE power has failed. PoE power may have been deactivated because of excessive powe r requirement or deactivated by configuration. Power Supply failed. 1. Check th e attached po wered device to see if it is defect ive. ...
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Enterasys Networks A2H124-48P - page 69
Troubleshooting Checklist SecureStack A2 PoE Installation Guide 4-7 T roubleshooting Checklist If the device is not work in g properly , refer to Ta b l e 4 ‐ 2 for a checklist of problems, possible causes, and recommended actions to resolve the problem. T ...
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Enterasys Networks A2H124-48P - page 70
Troubleshooting Checklist 4-8 Troubleshooting Cannot contact the SecureS tack A2 through in-band management. IP address not assigned. Refer to the SecureStack A2 Configuration Guide for the IP address assignment procedure. Port is disab led. This is normal if the switch is a Member in a stack. If operating as a standalone sw itch or as the Manager ...
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Enterasys Networks A2H124-48P - page 71
Using the Reset Password Switch SecureStack A2 PoE Installation Guide 4-9 Using the Reset Password Switch If you forget the SecureSt ack A2 login passw ord, use the Reset passw ord switch as described in the following procedure. Figure 4-3 Reset Password Switch To reset ...
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Enterasys Networks A2H124-48P - page 72
Using the Reset Password Switch 4-10 Troubleshooting ...
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Enterasys Networks A2H124-48P - page 73
SecureStack A2 PoE Installation Guide A-1 A Specifications This appendix provides information about the foll owing: Enterasys Networks reserves the right to change the specifications at any time without notice. Switch S pecifications Ta b l e A ‐ 1 provides the I/ ...
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Enterasys Networks A2H124-48P - page 74
Switch Specifications A-2 Specifications AC Input Specifications Input V oltage 100 to 240 V AC 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 W ...
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Enterasys Networks A2H124-48P - page 75
Switch Specifications SecureStack A2 PoE Installation Guide A-3 T able 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-nego tiation via the RJ45 connections. RJ45 ports 49 and 50 T wo 10/1 00/1000BASE-TX compliant ports with auto-sen ...
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Enterasys Networks A2H124-48P - page 76
Mini-GBIC Input/Output Specifications A-4 Specifications Mini-GBIC Input/Output S pecifications The Mini ‐ Gigabit Ethernet Card (Mini ‐ GBIC) port interface slots can support 1 ‐ Gbps fiber ‐ optic connections as described in Ta b l e A ‐ 3 . The optional Mini ? ...
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Enterasys Networks A2H124-48P - page 77
Gigabit Ethernet Specifications SecureStack A2 PoE Installation Guide A-5 MGBIC-LC03 S pecific ations (1000BASE-SX) T able A-5 MGBIC-LC01/MGBI C-MT01 Operating Range Item Modal Bandwid th @ 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 T a ...
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Enterasys Networks A2H124-48P - page 78
Gigabit Ethernet Specifications A-6 Specifications MGBIC-LC09 S pecific ations (1000BASE-LX) MGBIC-08 Specificati ons (1000BASE-ELX) T able A-8 MGBIC-LC09 Optical Spec ifications Item 62.5 µm MM F 50 µm MMF 10 µm SMF T ransmit Power (minimum) -1 1.5 dBm -1 1.5 dBm -9.5 dBm Receive Sensitiv ity -20 dBm -20 dBm -20 dBm Link Power Budget 8.5 dBm 8. ...
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Enterasys Networks A2H124-48P - page 79
Console Port Pinout Assignments SecureStack A2 PoE Installation Guide A-7 MGBIC-02 Specifications (1000BASE-T) Console Port Pinout Assignment s The Console port is a DB9 serial communications port for local access to Local Management. Refer to Figure A ‐ 1 for the Con ...
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Enterasys Networks A2H124-48P - page 80
Regulatory Compliance A-8 Specifications Regulatory Compliance The A2H124 ‐ 24P and A2H124 ‐ 48P meet the safety and electromagnetic compatibility (EMC) requirements listed in Ta b l e A ‐ 13 : T able A-13 Compliance St andards Regulatory Compliance Stan da rd s Safety UL 60950, CSA C22. ...
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Enterasys Networks A2H124-48P - page 81
Index-1 Index Numerics 1000BASE-SX/LX netwo rk connections requirements for 2-2 1000BASE-T requirements for 2-2 100BASE-TX requirements 2-2 10BASE-T connection 3-19 requirements 2-1 A A2H124-24P overview of 1-2 A2H124-48P overview of 1-2 C Cable fiber budget A-4 Cable specifications 1000BASE-SX/LX network 2-2 1000BASE-T network 2-2 100BASE-TX netwo ...
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Enterasys Networks A2H124-48P - page 82
Index-2 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 ...
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