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Summary of Contents for Lantronix LFH8-S
- Page 1 LFH8-S/LFH16-S Fast Stackable Hubs Installation Guide...
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Page 2: Table Of Contents
2.4 Mounting ........8 2.5 Stacking LFH8-S/LFH16-S Hubs ..... 9 2.6 Connecting the LFH Hub . -
Page 3: Chapter 1 Introduction
1.1 Product Introduction Congratulations on your purchase of the LFH stackable 8-port or 16- port Fast Ethernet Hub! The LFH8-S and LFH16-S are designed to give you the ultimate in flexibility, ease-of-use, and reliability. The LFH8-S and LFH16-S Stackable Fast Ethernet Hubs are 100BASE-... -
Page 4: Features
Supports Category 5 Unshielded Twisted Pair (UTP) or Shielded Twisted Pair (STP) cable An Uplink port on the front panel enables the LFH8-S/LFH16-S to be connected to another 100BASE-TX hub using a straight-through cable The LFH8-S and LFH16-S stackable architectures enable up to 6... -
Page 5: Product Specifications
1.3 Product Specifications Standards IEEE 803.3u 100BASE-TX Ethernet Network Media 100BASE-TX Unshielded Twisted Pair cabling (Category 5 UTP) Max. Lengths 100 meter hub-to-station connection 5 meter hub-to-hub connection Connectors 8/16 RJ45 100Mbps ports, one crossover ÒUplinkÓ port Two 25-pin stacking connectors Stackable Maximum 6-hub stack, stacking cable included LED indicators... -
Page 6: Packing Checklist
Chapter 2 Installing the LFH Hub 2.1 Packing Checklist Your LFH package should contain the following: An LFH8-S or LFH16-S Fast Stackable Hub One AC Power Cable One 25-pin cable for stacking LFH hubs Mounting brackets and screws Four self-adhesive standoffs... - Page 7 In a repeater environment, 100BASE-TX only allows a single layer of cascaded hubs. Switching hubs, such as LantronixÕs LSW8FA, may increase the network diameter for 100BASE-TX networks by buffering data packets. Each port can be connected to a separate LAN segment, each with a maximum diameter of 205 meters, thereby increasing the overall 100BASE-TX network diameter.
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Page 8: Installation
The LFH Stackable Fast Ethernet Hubs are easy to install and require no special training. You should, however, read the following instruc- tions carefully before proceeding to install your hub. Figures 2-1 and 2-2 show the layout of the front panels. Figure 2-1 LFH8-S Front Panel LFH8-S UTILIZATION % PARTITION LINK/RECEIVE PORT NO. -
Page 9: Mounting
When placing your LFH hub, you need to avoid dusty locations and electromagnetically noisy areas 2.4 Mounting Your LFH8-S or LFH16-S hub is delivered with two brackets for mounting the hub in an EIA standard 19 inch rack. Secure the mounting brackets onto the sides of the hub, fastening them with screws as shown in Figure 2-3. -
Page 10: Stacking Lfh8-S/Lfh16-S Hubs
2.5 Stacking LFH8-S/LFH16-S Hubs You can stack up to six LFH8-S/LFH16-S hubs together using the special connectors on the back panel. A single stack can contain a mixture of 8-port and 16-port hubs. - Page 11 LFH hub to one of the connectors on the top LFH hub. 3. Connect a stacking cable from the other connector on the middle LFH hub to one of the connectors on the bottom LFH hub. Figure 2-5 Stacking Six LFH8-S/LFH16-S Hubs AC IN 100-240 VAC 1A 50-60 Hz...
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Page 12: Connecting The Lfh Hub
2.6 Connecting the LFH Hub Use the following procedures to connect 100BASE-TX network devices to the hub: LFH8-S Ports 1-8 Uplink Port LFH16-S Ports 1-16 PC, Workstation Server Hub, Switch port Hub, Switch uplink port S = Straight Cable C = Crossover cable NOTE: If the Uplink Port is being utilized on the LFH hub, Port Ò8Ó... -
Page 13: Chapter 3 Led Indicators
Chapter 3 LED Indicators Figure 3-1 shows 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 utilization % and partition on the network. Figure 3-1 LFH16-S Front Panel LED Indicators PORT NO. -
Page 14: Link/Receive Leds
3.3 Link/Receive LEDs The Link/Receive LEDs on the front panel are associated with indi- vidual ports, indicating whether a device is detected on the other end. The LFH hub monitors each port on the hub to determine whether or not there is a device on the other end. If the cable is connected to a port and a link is detected, the LED will light;... -
Page 15: Limited Warranty
Limited Warranty The LFH8-S and LFH16-S come with 5-year limited warranties. To obtain LantronixÕs full warranty statement or if you experience prob- lems with your unit, check our website (www.lantronix.com) or call Lantronix for assistance. Copyright © 1998, Lantronix. All rights reserved. No part of the contents of this guide may be transmitted or reproduced in any form or by any means without the written permission of Lantronix. - Page 16 NOTE: The RJ45 ports are not for telephone use. CAUTION: Not for installation in air ducts, plenums or other environmental air handling spaces. Changes or modifications to this device not explicitly approved by Lantronix will void the userÕs authority to operate this device.
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Page 17: Declaration Of Conformity
(according to ISO/IEC Guide 22 and EN 45014) ManufacturerÕs Name: Lantronix ManufacturerÕs Address: 15353 Barranca Parkway Irvine, CA 92618 USA declares, that the product: Product Name: Fast Stackable Hubs Model Number: LFH8-S, LFH16-S conforms to the following standards: EMC: EN55022(1988)/CISPR 22(1985) Class B EN60555-2(1987) Class A... - Page 18 15353 Barranca Parkway, Irvine, CA 92618 949-453-3990 Fax: 949-453-3995 Sales: 800-422-7055 Support: 800-422-7044 PART NO. 900-143 Rev.A...
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