Installation Guide 16-port Dual-speed Ethernet / Fast Ethernet Hub KF-16M, KF-16MS P/N:750-0105-001 DOC.
Ó 1998 KTI Networks Inc. All rights reserved. No part of this documentation 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.
16-port Dual-speed Ethernet / Fast Ethernet Hub Installation Guide DOC.
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.
Table of Contents 1. Introduction ............................................................................... 1 1.1 1.2 1.3 Features .................................................................................................................. 2 Dual-speed Hub Technology ................................................................................. 3 Specifications ......................................................................................................... 5 2.
Figures 1-1 1-2 1-3 2-1 2-2 2-3 2-4 2-5 2-6 2-7 3-1 3-2 3-3 3-4 3-5 3-6 3-14 4-1 Dual-speed Ethernet / Fast Ethernet Hub Unit ...................................................... 1 Dual-speed Hub Design ......................................................................................... 3 Dual-speed Hub with Built-in 10/100 Switch ....................................................... 4 Desktop Mounting ................................................................................................
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 specifications.
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.
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 Ethernet 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.
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 segment to another at wire speed. It also performs the address filtering that only forwards those packets which need to cross 10M and 100M segments.
1.3 Specifications Standard IEEE 802.3 IEEE 802.
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 100240V, 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.
Rack Mounting For mounting the hub into a 19-inch rack, a pair of mounting brackets is included in the pack.
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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.
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 located 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.
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 OPERATION.
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 connection 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.
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. 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.
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. The maximum distance is 5 meters apart. Note: only one Class II hub connection is allowed per hub.
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. If interconnection of the 10M network and the 100M network is required, one and only one KF-16MS is needed to be installed in a hub stack to bridge the intertraffic between the 10M network and the 100M network. A hub stack still complies with IEEE 802.3u Class II specifications.
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. Activity 10: there are activities occurred on the shared 10M segment. Blink There are activities on the segment. Off No activity occurs on the segment. Activity 100: there are activities occurred on the shared 100M segment.
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. 10M Link: The port has a good link to a 10M Ethernet device. On Off Good link to a 10M Ethernet device No active link to a 10M Ethernet device 100M Link: The port has a good link to a 100M Fast Ethernet device. On Off Good link to a 100M Fast Ethernet device No active link to a 100M Fast Ethernet device Partition: The port is in partitioned state.
