Instruction/ maintenance manual of the product LFH8-M 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.
An important point after buying a device Lantronix LFH8-M (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lantronix LFH8-M yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lantronix LFH8-M - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lantronix LFH8-M you will learn all the available features of the product, as well as information on its operation. The information that you get Lantronix LFH8-M will certainly help you make a decision on the purchase.
If you already are a holder of Lantronix LFH8-M, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lantronix LFH8-M.
However, one of the most important roles played by the user manual is to help in solving problems with Lantronix LFH8-M. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lantronix LFH8-M along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
