Plug-n-Switchback Auto sense Switch Installation Guide P/N.: 85-500500-00 Revision: A2 May 1998 NDC Communications, Inc. 263 Santa Ana Count, Sunnyvale CA 94086, USA Tel: +1 (408) 730-0888 Fax: +1 (408) 730-0889 Technical Support E-mail: Toll-Free (US only): 800-632-1118 Europe and Asia Pacific E-mail: NDC Web Site www. software com www.ndelan.
feo Tp: Tou uy SHEW sy TRADEMARKS NDC is a trademark of NDC Communications, Inc. All other names mentioned in this document are trademarks/registered trademarks of their respective owners. NDC provides this document “as is," without warranty of any kind, neither expressed nor implied, including, but not limited to, the particulars purpose. NDC may make improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this biannual at any time.
Table of Contents CHAPTER 1: DC's PLUG-N-SWITCH™ SERIES PLUG-N-SWITCH™ FEATURES. CHAPTER 2: GETTING STARTED INTRODUCTION... OVERSAMPLING PORT DUPLEX MODES. PACKET FORWARDING MODE Store-and-Forward.
List of Figures FIGURE 1. SUPERVENTION POR: FIGURE 2. PLUGN-SwiTCH™ LEDS(NSH500(M)) Figure. Plug-n-Switch™ FIGURE 3. NEAR-TERM MIGRATION YO A SWITCHED 10MBPS LAN Figure 4. MID-TERM SWITCHED LAN FIGURES. A SMALL SWITCHED Mini BACKBONE FIGURE 6. SWITCHING Hup APPLICATION FOR GRAPHICS-ORIENTED ENVIRONMENTS.
Chapter 1: Introduction DC's Plug-n-Switch™ Series DC's Plug-n-Switch™ 10/100 Auto sense switches are a family of smarter, faster; smaller and more reliable Ethernet/Fast Ethernet switches that fit into Small/Medium Business (SMB) and Small Office/Home Office (SOHO) environments. The series consists of a 5-port switch and an 8-port switch.
Chapter 2: Getting Started Introduction Many of today’s Local Area Networks (LAN) are experiencing bandwidth shortages. There are many reasons for this increase in the amount of data being transmitted over the network: Internet traffic, ever larger applications being run from central servers, increasing numbers of users on the LAN, and the inefficient traffic patterns of many networks. Efficient Switching technology is increasing the efficiency and speed of networks, leading to higher productivity.
port automatically switches transparently from one packet forwarding mode to another, according to the load on the network. Oversampling Port One port of the Plug-n-Switch™ series is assigned as a first priority port ‘ (Oversampling port). In extremely heavy data-traffic environments, traffic on the Oversampling port will get priority over the other ports. ‘The priority port is usually used for connecting to a server or up linking to another switch.
Aggregate throughput on 10Mbps Ethernet networks doubles to 20Mbps, and on 100Mbps networks doubles to 200Mbps, resolving traffic bottlenecks (e.g. such as a frequently accessed server). Packet Forwarding Modes . Cut-Through Cut-Through mode begins to forward packets of data to the destination port as soon as the packet destination address has been read by the switch. This ensures the shortest delay time, called latency, from one port to another for packet deliveries.
LED Status Indicators Front View Figure 2. Plug-n-Switch™ LEDS(NSHE0O(M)} cao OM in Wom Rem (UTE coo Dom Horehound EE Osu om @me mes Benson = Figure 3. Plug-n-Switch™ The functions of the LED indicators are as follows: MOONSHINE) LED Indicator |: Color b Description Power Green Power status indicator. Lit when receiving power Diagnostic Red Diagnostic Status, Blinks if system fails. Status Normally OFF Link/Act (ane Green Blinks to indicate that the port is per port) transmitting/receiving data.
Traffic Busy Red Blinks when a traffic bottleneck occurs on {one per port} the port NSHSIU/NSHEI0SP LED Indicator | €. Prescription Power Red Power stats indicator. Lit when receiving power Link (one per Green OFF when no device is attached to the port port} 100Mbps (one | Green Indicates network speed on the port, Lit per port) when 100Mbps. OFF when 10Mbps Duplex Mode Yellow Indicates paintwork duplex mode ou the (one per port) port. Lit when works in Full duplex. OFF when works in Half duplex .
Chapter 3: Using The Switch To control network costs, the existing network infrastructure needs to be preserved as much as possible. It's not necessary to replace installed equipment in order to adopt new, faster, switch technologies. Using Plug-n-Switch™ switches is . particularly attractive because the increased bandwidth they support can be achieved with little change to the existing equipment or cabling.
Application Examples Example I: Shared 10Mbps LAN with near-term higher bandwidth requirements ~ Figure 3. Near-Term Migration to a Switched 10Mbps LAN Example I (Figure 3) illustrates a migration method from a traditional 10Mbps shared Ethernet LAN to a switched one. There is no change in the connections between the network nodes and hubs, A Plug-n-Switch™ switching hub is added 10 increase the bandwidth. Server connections are moved from autobahn a dedicated switching port.
Example H: Switched 10Mbps LAN to Mixed10/100Mbps or Pure 160Mbps Fast Ethernet LAN — NSH500NUNSHB0OM Figure 4. Mid-Term Switched LAN Example IT (Figure 4) illustrates a further migration, to a mixed 10/100Mbps LAN. Fast Ethernet hubs are added to provide shared 100Mbps bandwidth for power users. The placement of the Plug-n-Switch™ switches permits connection of both 10 and 100Mbps networks and creates a full-duplex 200Mbps connection to the company server.
Example III: Company’s Backbone —~ Figure 5. A Small Switched Mini Backbone In Example 11] (Figure 5) a small switched mini backbone running at 200Mbps is created. One or more servers can be added to meet the whole company's requirements. The previous hardware investments are still retained. Example IV: Accelerator to Graphics-Oriented Environment ta a Figure 6.
In Example IV (Figure 6) heavy traffic is generated mainly inside the CAD/CAM work group. Other work groups, like Sales or Finance, usually generate only a small part of the network traffic. The traffic from the CAD/CAM group to the company server is relatively small. Therefore the company server could be placed 10 share 100Mbps bandwidth with all groups without any problem In this scenario the MCADAM work group, the source of the heavy network traffic.
Chapter 4: Installation Procedure Plug-n-Switch™ Auto sense 10/100Mbps 5-port and 8-part switches are fully self-managing and require no configuration setting. They dynamically meal the addresses of devices installed or added to the network and automatically detect the maximum speed the devices can support. Installation is as easy as connecting a few cables and switching the unit on. Installation is a simple three-step procedure: 1.
Chapter 5: Troubleshooting Should you experience a problem with the Plug-n-Switch™, the LED status will help you determine the problem. Follow the steps below according to the nature of the problem you encountered. « General Problems The main power switch appears not to function 1. Make sure the power adapter is properly connected 2. Make sure the cables are wired correctly, and that you are using the correct cable type for abase-T or base's-TX (see cabling, page 6) 3.
If the port is connected to a server via a dedicated Fast Ethernet connection, the problem indicates the server is being heavily accessed and that it’s time to add another {Local) server in order to remove the bottleneck. Support From Your Network Supplier . If additional assistance is required call your Plug-n-Switch™ supplier for help. Please have the following information ready before you make the call. 1. LED stats 2. List of the product hardware (including revision levels).
Environment Non-condensing Humidity: 5% to 90% Certification FCC Class A CE Commercial COCCI Class A 16 Plug-n-Switch™
EC DECLARATION OF CONFORMITY For the following equipment: product Name © Plug-n-Switch . Model Number © NSH500/ SNOWSHED NSHBIO/NSHB10SP Produced by! Manufacturer's : NATIONAL DATA COMM CORPORATION Name Manufacturer's INDUSTRY EAST 9™ ROAD Address SCIENCE PARK, H SIN-CHU TAIWAN, ROC. is hereby confirmed 10 comply with the requirements set out in the Council Directive on the Approximation of the Laws of the Member States restating 10 Electromagnetic Compatibility (89/ 336 EEC).