LantronixメーカーLFH4-Mの使用説明書/サービス説明書
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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.
デバイスLantronix LFH4-Mの購入後に(又は購入する前であっても)重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります:
Lantronix LFH4-Mをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはLantronix LFH4-Mの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Lantronix LFH4-Mの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Lantronix LFH4-Mで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Lantronix LFH4-Mを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はLantronix LFH4-Mの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Lantronix LFH4-Mに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちLantronix LFH4-Mデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。