Manuale d’uso / di manutenzione del prodotto LFH4-M del fabbricante Lantronix
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LFH4-M/LFH8-M Mini Fast Hubs Installation Guide.
T able of Contents CHAPTER 1. Introduction 1.1 Product Intr oduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Product Specifications .
CHAPTER 1 Introduction 1.1 Product Introduction Congratulations on your purchase of the LFH 4-port or 8-port Mini Fast Ethernet Hub! The LFH4-M and LFH8-M are designed to give you the ultimate in flexibility , ease-of-use, and r eliability .
1.2 Features ▼ The LFH4-M provides four 100BASE-TX ports and the LFH8-M provides eight 100BASE-TX ports for Fast Ethernet connectivity ▼ The LFH4-M/LFH8-M comply with the IEEE 802.
1.3 Product Specifications Standards IEEE 803.3u 100BASE-TX Ethernet Network Media 100BASE-TX Unshielded T wisted Pair cabling (Category 5 UTP) Max. Lengths 100 meter hub-to-station connection 5 meter.
5 Chapter 2 Using the LFH Hub 2.1 Packing Checklist Y our LFH package should contain the following: ✓ An LFH4-M or LFH8-M Mini Fast Hub ✓ Mounting brackets and screws ✓ External AC/DC power adapter (120V AC or 220V AC) ✓ Installation Guide If any of these items are missing, contact your dealer immediately .
6 Not only does 100BASE-TX have a differ ent data transmission scheme, it also has differ ent cabling requir ements. As previously noted, 100BASE-TX requir es data-grade (Category 5) UTP cable. Some installations have Category 5 cabling but do not have wall outlets and wiring closet punch-down blocks that meet Category 5 requir e- ments.
Figure 2-2 LFH4-M Fr ont Panel Figure 2-3 LFH8-M Fr ont Panel The LFH Mini Fast Ethernet Hubs were designed for easy Òplug and playÓ installation. Before you connect the LFH to other devices, ther e.
2.4 Mounting Y our LFH4-M or LFH8-M hub is delivered with a mounting bracket. The LFH hub can be mounted to the wall or to the surface of a counter- top by using the bracket and hanging the LFH hub on the wall using the keyholes provided on the bottom of the hub.
2.5 Connecting the LFH Hub Use the following procedur es to connect 100BASE-TX network devices to the hub: NOTE: If the Uplink Port is being utilized on the LFH hub, the adja- cent Port may not be used. Conversely , if that Port is being utilized, the Uplink Port may not be connected.
10 Chapter 3 LED Indicators Figure 3-1 and Figur e 3-2 show the LED indicators which indicate the link status of each of the ports, whether the LFH hub is receiving power , and the presence of network activity and collisions on the network.
11 3.1 Power LED The green LED on the fr ont panel labeled PWR is used to indicate that the LFH hub is receiving power and is turned on. If the LED is of f, check the following to isolate the problem:.
3.3 Link/Activity LEDs The Link/Activity LEDs on the front panel ar e associated with indi- vidual ports, indicating whether a device is detected on the other end and whether or not the port has been automatically partitioned off. The LFH hub monitors each port on the hub to determine whether or not there is a device on the other end.
Limited W arranty The LFH4-M and LFH8-M come with 5-year limited warranties. T o obtain LantronixÕs full warranty statement or if you experience pr ob- lems with your unit, check our website (www .lantronix.com) or call Lantronix for assistance. Copyright © 1998, Lantronix.
W ARNING! This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interfer ence received, including that which may cause undesired operation.
Declaration of Conformity (according to ISO/IEC Guide 22 and EN 45014) Manufacturer Õs Name: Lantronix Manufacturer Õs Addr ess: 15353 Barranca Parkway Irvine, CA 92618 USA declares, that the pr odu.
16 NOTES.
15353 Barranca Parkway , Irvine, CA 92618 949-453-3990 ▼ Fax: 949-453-3995 ▼ Sales: 800-422-7055 ▼ Support: 800-422-7044 P ART NO. 900-142 Rev .A.
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 Lantronix LFH4-M 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 Lantronix LFH4-M - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Lantronix LFH4-M imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Lantronix LFH4-M ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Lantronix LFH4-M, 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 Lantronix LFH4-M.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Lantronix LFH4-M. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Lantronix LFH4-M 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.
