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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.
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.
16-port Dual-speed Ethernet / Fast Ethernet Hub Installation Guide DOC.980302-KF16M/16MS-NK P/N: 750-0105-002.
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.
Table of Contents 1. Introduction ............................................................................... 1 1.1 Features .................................................................................................................. 2 1.2 Dual-speed Hub Technology .
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 .
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.
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.
1.2 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.
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.
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 shielde.
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.
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 i.
2.3 Front Panel and Rear Panel Figure 2-4 Components on the Front and Rear Panel 8.
• 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.
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.
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.
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.
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.
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.
Connecting to a 100BASE-TX Hub Since the KF-16M and KF-16MS hubs are designed to comply with IEEE 802.3u Class II repeater specifications, each hub can support one connection to another 100BASE-TX Class II hub only. It is recommended to preserve Port #16 as a uplink port for connecting to another hub (or a hub stack) via a UTP cable.
3.2 Hub Stack Connection A hub stack composed of multiple hubs (up to four) cascaded together as the instruction in section 2.4 can be treated as a single dual-speed hub which provides up to 64 dual-speed ports.
4. LED Indicators 4.1 LED Panel The hub provides comprehensive LED indicators for diagnosing and monitoring the operation of the unit as illustrated below: Figure 4-1 LED Indicators 4.2 Interpretation Power LED indicates the status of the power supplied to the hub.
Collision 100 : there are collisions occurred on the shared 10M segment. Blink There are collisions on the segment. Off No collision occurs on the segment.
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