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2.4 Cascading Multiple Hubs More than one hub can be cascaded together to be a hub stack using the cascade cable supplied with the hub. Two cascade connectors are lo- cated on the rear of the hub and labeled IN and OUT respectively for KF-16M. For KF-16MS, only IN cascade connector is provided. Before cascading hubs, make sure the power to the hubs is turned off. Connect one end of the cascade cable to the IN connector of the first hub and connect the other end to the OUT connector of the second
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When cascading more than two hubs, follow the IN-to-OUTdaisy-chain rule as above to cascade all hubs sequentially. Up to four hubs can be cascaded in a stack. Figure 2-6 Cascading Four Hubs in One Stack Only one KF-16MS is needed in one stack if a bridge is required to connect the 10M network and the 100M network in a hub stack. Figure 2-7 A Hub Stack Containing one KF-16MS NOTE: TO KEEP THE STACK FUNCTION WORKING, THE POWER OF ALL HUBS IN A STACK MUST BE ON DURING OPERA- TION. 11
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3. Making Network Connections 3.1 Dual-speed Twisted-pair Ports Figure 3-1 16 Dual-speed TP Ports The hub provides 16 dual-speed TP ports. Each can support one con- nection to either a 10BASE-T Ethernet device or a 100BASE-TX Fast Ethernet device using 2-pair UTP cable. RJ-45 Connectors Each of Port #1 to Port #15 provides one RJ-45 connector, which are implemented as MDI-X jack. An MDI-X jack is designed with internal crossover function. The function allows a connection to a computer us- ing st
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UTP Cables For connecting to an 10BASE-T Ethernet device, a 2-pair Category 3, 4, or 5 UTP cable can be used. For connecting to a 100BASE-TX Fast Ethernet device, only 2-pair Category 5 UTP cable can be used. Connected Device UTP Cable Used 10BASE-T devices Category 3, 4 or 5 100BASE-TX devices Category 5 only With different wiring, two types of the UTP cables are defined as fol- lows: Figure 3-2 Straight-through UTP and Crossover UTP 13
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Connecting to a Computer The RJ-45 connectors labeled 1X to 16X can be used for connecting to the network adapter installed in a computer. The network adapter can be a 10BASE-T adapter, a 100BASE-TX adapter, or a dual-speed NWay adapter. The following figure illustrates the cables used for connecting to different network adapters: Figure 3-3 Connecting to Computers Connecting to 10BASE-T Hubs The hub can support more than one connection to the 10BASE-T hub. Make sure the MDI-X to MDI-I connecti
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Installation Guide
16-port Dual-speed
Ethernet / Fast Ethernet Hub
KF-16M, KF-16MS
P/N:750-0105-001
DOC.980301-KF16M/16MS-K
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Ó 1998 KTI Networks Inc. All rights reserved. No part of this docu- mentation may be reproduced in any form or by any means or used to make any directive work (such as translation or transformation) without permission from KTI Networks Inc. KTI Networks Inc. reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of KTI Networks Inc. to provide notification of such revision or change. For more information, contact: United St
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16-port Dual-speed Ethernet / Fast Ethernet Hub Installation Guide DOC.980302-KF16M/16MS-NK P/N: 750-0105-002
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The information contained in this document is subject to change without prior notice. Copyright Ó KTI. All Rights Reserved. TRADEMARKS Ethernet is a registered trademark of Xerox Corp. WARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equip- ment genera
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Table of Contents 1. Introduction ............................................................................... 1 1.1 Features .................................................................................................................. 2 1.2 Dual-speed Hub Technology ................................................................................. 3 1.3 Specifications ......................................................................................................... 5 2. Installing
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Figures 1-1 Dual-speed Ethernet / Fast Ethernet Hub Unit ...................................................... 1 1-2 Dual-speed Hub Design ......................................................................................... 3 1-3 Dual-speed Hub with Built-in 10/100 Switch ....................................................... 4 2-1 Desktop Mounting .................................................................................................6 2-2 Install Rack Mount Brackets ...........
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1. Introduction This guide covers the product information and installation information for two dual speed Fast Ethernet hubs. One is KF-16M which provides 16 dual-speed twisted-pair (TP) ports. The other is KF-16MS which provides 16 dual-speed TP ports and one internal 10M-to-100M switch for bridging the 10Mbps network and 100M network in the hub. Figure 1-1 Dual-Speed Ethernet / Fast Ethernet Hub Units Both hubs comply with IEEE 802.3 and IEEE 802.3u repeater specifi- cations. Both support 10M
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Both hubs also feature cascade connectors (two for KF-16M, one for KF-16MS) on the rear for cascading one hub to another in a hub stack. Up to four hubs can be cascaded in one stack. A hub stack can be treated as a single hub which gives a total of 64 dual-speed TP ports with only one hop count. 1.1 Features The hub provides the following features: • Complies with IEEE 802.3 and IEEE 802.3u standard for Class II Fast Ethernet repeater • Provides 16 fixed dual-speed TP ports. Each port can suppor
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1.2 Dual-speed Hub Technology Dual-speed hub is designed to support connections with different speeds in the same hub. It makes a network planning simpler, especially when an environment is containing 10Mbps Ethernet and 100Mbps Fast Eth- ernet technologies. It also allows a smooth migration from an Ethernet network to a Fast Ethernet network. A dual-speed hub is actually equipped with one 10Mbps repeater and one 100Mbps repeater in one hub unit. Each repeater serves one shared network segment.
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KF-16MS is equipped with an internal 10M-to-100M switch function to bridge the traffics between 10Mbps segment and 100Mbps segment as follows: Figure 1-3 Dual-speed Hub with Built-in 10/100 Switch The 10M-to-100M switch can perform packet forwarding from one seg- ment to another at wire speed. It also performs the address filtering that only forwards those packets which need to cross 10M and 100M seg- ments. 4
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1.3 Specifications Standard IEEE 802.3 IEEE 802.3u Class II Repeater Network ports 16 dual-speed TP ports with auto-sensing function Port connectors 16 MDI-X RJ-45 shielded jacks 1 MDI-I RJ-45 shielded jack Cascade connectors 2 DB25 connectors (KF-16M) 1 DB25 connector (KF-16MS) LED indicators Power 10M Link status per port 100M Link status per port Partition status per port 10M activity, 10M collision 100M activity, 100M collision o o Environment Temperature 5 C to 40 C Relative humidity 15% to
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2. Installing the Dual-speed Hub The hub is designed to operate in workgroup environments without a complicated configuration procedure. It also features an auto-select 100- 240V, 50/60Hz power supply unit, which works in most countries around the world. Before connecting the supplied power cord into the hub, check to see that the cord voltage and current rating conform to the standards of the country of operation. 2.1 Packing List The hub has the following components shipped with it: • One hub
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Rack Mounting For mounting the hub into a 19-inch rack, a pair of mounting brackets is included in the pack. Figure 2-2 Install Rack Mount Brackets Install the hub into a 19-inch rack as illustrated in the following figure: Figure 2-3 Install the Hub into a 19-inch Rack 7
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2.3 Front Panel and Rear Panel Figure 2-4 Components on the Front and Rear Panel 8
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• 1X - 16X RJ-45 Connectors MDI-X jacks for Port #1 - Port #16 respectively • 16I RJ-45 Connector MDI-I jack for Port #16 • Diagnostic LED indicators The indicators provide the operating status of the hub and the network ports. The status includes power, activity status for 10M segment, activity status for 100M segment, collision status for 10M segment, collision status for 100M segment, 10M link status per port, 100M link status per port, partition status per port. • Cascade Connectors The conn
