Manuale d’uso / di manutenzione del prodotto II del fabbricante Asante Technologies
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NetStacker II Dual Speed Stackable Hub User’ s Manual SHBBook Page 1 Wednesday, March 3, 1999 8:03 PM.
Copyright N otice T rademarks Asanté T echnologies and FriendlyNET are trademarks of Asanté T echnologies, Inc. E thernet is a r egistered trademark of the Xerox Corporation. A ll brand names and products are trademarks or registered trade- marks of their respective holders.
Page i T able of Contents About This Manual ................................................. iii Chapter Contents .............................................. iii Document Conventions ..................................... iv Important Safety Instructions .
Page ii LED Indicators ..................................................... 3-1 Power LED ..................................................... 3-2 Collision Indicator LEDs ................................. 3-2 Hub ID Number LEDs ....................
Page iii About This Man ual This manual describes the N etStacker II dual speed stackable hubs. The manual focuses on the following two models: ❑ 12-port 10/100Mbps managed stackable hub ❑ 24-port 10/100Mbps managed stackable hub U nless otherwise noted, all information provided in this manual is applicable to both units.
Page iv Document Con ventions This manual uses the term “N etS tacker II” to refer to the 12 port and 24 port dual speed hubs, and “hub ” to refer to all other Ethernet hubs.
About This Manual Page -v 11. If an extension cord is used with this product, make sur e that the total ampere ratings on the products connected to the extension cor d do not exceed the extension cord ampere rating. Also make sur e that the total of all products plugged into the wall outlet does not exceed 15 amperes.
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Page 1-1 1 Intr oduction This chapter introduces the Asanté N etStacker II 12 port and 24 port dual speed stackable hubs and provides an o ver view of basic hub technology .
Introduction Page 1-2 The N etS tacker II 12 port unmanaged hub pro vides 12 twisted pair por ts. The 24 port managed hub provides 24 twisted pair ports. In addition, both hubs offer an expansion slot for a 100Base-FX interface so the user can slide a fiber- optic module into the rear panel.
Performance Features Page 1-3 Each hub features full plug-and-play installation. LED indicators include pow er status, port link activity status, collision detection, and hub identification, for easy monitoring of hub operation.
Introduction Page 1-4 SHBBook Page 4 Wednesday, March 3, 1999 8:03 PM.
Page 2-1 2 Installation This chapter describes the components and explains how to install, mount, and apply power to your N etStacker II dual speed hub .
Installation Page 2-2 The front panel of the 24 port hub displays: ❑ T wenty-four dual speed (UTP) Ethernet ports ❑ One uplink switch button ❑ LED indicators.
Components Page 2-3 F igure 2-3 LED Indicators on 12 port hub Rear P anels of the 12 Port and 24 P or t Hubs The rear panels of the 12 port and 24 port hubs both display: ❑ Management M odule S lot;.
Installation Page 2-4 Cabling and V oltage Requirements This section describes the cabling and voltage requirements for the N etS tacker II 12 port and 24 port hubs. ◆ N ote: Y ou may connect network cable segments to the hub or disconnect them while the power is on.
Placement and Mounting Page 2-5 Placement and Mounting This section describes how to mount the N etStacker II on a desktop or shelf. Hub Location The location chosen for the N etS tacker II hub should be less than 100 meters from servers, workstations, and other devices.
Installation Page 2-6 3 Place the device into the 19-inch rack and attach it firmly . Ensure that the ventilation holes do not get blocked. F igure 2-6 Rack mounting Connecting Netw ork Devices The Auto-sensing capability of the N etStacker II hub allows y ou to connect 10Mbps and/or 100Mbps devices.
Connecting Network Devices Page 2-7 F igure 2-7 Connecting cable to a NIC ◆ N ote : The maximum length of a cable between a hub and a device is 100 meters, including all patch cables and cross-connect wires.
Installation Page 2-8 2 Make sure that the length of the straight thr ough cable between the N etStacker II and a 100Mbps repeater does not exceed 5 meters, including all patch cables and cross con- nect wires. The cable between the N etS tacker II and any switch or any 10Mbps repeater cannot exceed 100 meters.
Connecting Network Devices Page 2-9 F igure 2-9 Connecting to another hub using U plink P ort Straight through cab le Button pressed in 12 345 6 78 9 1 0 1 1 1 2 MII Module Slot NS2012 Uplink Normal U.
Installation Page 2-10 Stacking Hubs U p to eight N etStacker II hubs may be connected within a stack. F ur thermore, a management module can be installed easily in any of the stacked hubs, so that all of them can be managed. The management module communicates with a manager console by means of SNMP agent software, installed in the managed hub.
Connecting Network Devices Page 2-11 Adding Fiber Optic Connectivity via MII T o add connectivity for 100Base-FX transmission media, insert the optional MII fiber-optic module in the MII Module S lot in the back panel of the hub, as shown in F igur e 2-11.
Installation Page 2-12 P owering on the Hub The N etS tacker II hub may be turned on with (or without) LAN segment cables connected. T o power on the hub: 1 Connect one end of the power cor d (supplied) into the AC pow er connector on the back panel of the hub.
Page 3-1 3 LED Indicator s This chapter explains how to interpret the fr ont panel LED indicators on N etS tacker II dual speed hubs. There are no LEDs on the rear panel.
LED Indicators Page 3-2 F igure 3-2 24 port hub LEDs P ower LED The P ower LED is green and should always be lit when the N etStacker II is in use. After power is turned on, the LED indicators should r espond as follows: ❑ All LED indicators blink momentarily .
Hub ID Number LEDs Page 3-3 Hub ID Number LEDs The H ub ID LEDs are a numbered r ow of eight green LEDs. I f your N etS tacker II hub is configured with other N etStacker II hubs in a stack, each hub will get an auto-configured ID number , and the LED for that number will be lit on each hub.
LED Indicators Page 3-4 SHBBook Page 4 Wednesday, March 3, 1999 8:03 PM.
Page A-1 A T r oubleshooting T able A-1 describes how to troubleshoot problems with your network and/or the S witch by monitoring the S witch ’ s LEDs. T able A-1 T roubleshooting Prob lem Indication Action No P ower P ower LED OFF Check the power cord.
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Page B-1 B Specifications NetStacker II Hub Specifications Standar d IEEE 802.3 Ethernet standard IEEE 802.3u F ast Ethernet standard Interfaces RJ-45 (TP) X 12/24 Stackable connector X 2 MII expans.
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Page C-1 C T echnical Suppor t Contacting T echnical Support T o contact Asanté T echnical Support: T elephone (800) 622-7464 F ax (801) 566-3787 F ax-Back (800) 741-8607 E-mail support@asante.com W orld Wide W eb Site http://www .asante.com T echnical Support Hours 6:00 a.
SHBBook Page 2 Wednesday, March 3, 1999 8:03 PM.
SHBBook Page 1 Wednesday, March 3, 1999 8:03 PM.
ASANTÉ TECHNOLOGIES, INC., 821 FOX LANE, SAN JOSE, CA 95131 PHONE: 800.622.7464 • F AX: 801.566.3787 • e-mail address: sales@asante.com • W orld Wide W eb site: http://www .asante.com ©1999 Asanté T echnologies Inc. Asanté is a trademark of Asanté T echnologies, Inc.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Asante Technologies II è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Asante Technologies II - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Asante Technologies II imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Asante Technologies II ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Asante Technologies II, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Asante Technologies II.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Asante Technologies II. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Asante Technologies II insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
