NBase NH 210 Скачать руководство пользователя страница 6

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NBase Communications 

NH 210

Features

Standards 

Complies with IEEE 802.3 and IEEE 802.3ustandards

Functionality

8 switched 10Base-T Ethernet ports and two

built-in

high-speed ports

VLAN

Up to four VLAN groups can be configured to protect 
against multicast and broadcast storms (NH 210-2K)

Security

Per/port intrusion control capabilities

Cost-effective

Switching performance at hub prices 

ASIC Technology

Enables wire-speed switching between the 10Mbps and 
100Mbps ports

Management

Windows 95™ -based management by

MegaView

Diagnostics

Diagnostic LEDs on each port for easy installation and 
maintenance

Theory of Operation

Ethernet segment switches divide a large unwieldy local network into smaller
segments, insulating each from the other’s local traffic and increasing aggre-
gate bandwidth, while still retaining full connectivity. The NH 210 is designed
to be self-configuring and extremely fast, making installation simple and pro-
viding an increase in available bandwidth.

The switch learns on which port stations are located by remembering the
source address of every packet received on every port.  When packets are
received for stations that the switch has learned, they will be forwarded to
only the port that the station is on. This is in contrast to a hub which sends
every packet to every port.  

If the switch receives a packet addressed to a station which the switch has not
learned, the packet is sent to every port, except the port on which it was
received, just as a hub would. This insures that full connectivity is maintained.
The high port density of the NH 210 allows for dedicated, high-performance
workstation links.

NH210.QXD  21/6/99  13:22  Page 2

Содержание NH 210

Страница 1: ...10 100 Workgroup Switch NH 210 INSTALLATION AND USER GUIDE ML42189 Rev 1 00 NH210 QXD 21 6 99 13 22 Page 1...

Страница 2: ...Methods of Measurement of Radio Interference Characteristics of Information Technology Equipment EN 50082 1 Electromagnetic compatibility Generic immunity standard Part 1 Residential commercial and li...

Страница 3: ...our Network 3 Typical Configurations 4 INSTALLATION AND SETUP 5 Unpacking and Inspection 5 Installing the NH 210 5 Rack Mounting 5 Front Panel 6 Rear Panel 7 DIP Switches 8 Half Full Duplex Operation...

Страница 4: ...5 Device VLAN Configuration 25 Device Ports Statistics 27 Port Property Sheets 28 Port Configuration 28 Port Statistics 29 NBase Communications NH 210 This document and the information contained herei...

Страница 5: ...ity The switch is offered in the following two models NH 210 32 Support for 32 MAC addresses efficient cost effective small network switch NH 210 2K Support for 2K MAC addresses configures up to four...

Страница 6: ...m the other s local traffic and increasing aggre gate bandwidth while still retaining full connectivity The NH 210 is designed to be self configuring and extremely fast making installation simple and...

Страница 7: ...than regular Ethernet Software except for low level drivers which are always card specific works with Fast Ethernet without modification Frames from a device using Fast Ethernet require no translatio...

Страница 8: ...thernet back bone 10 100Mbps hubs or individual stations all functioning in Half Full duplex mode High speed port connectivity is over 100Base TX copper Management capabilities enable the configuratio...

Страница 9: ...reach of the necessary connections i e power outlet Ethernet connections and a PC It unit is powered by a wide range power supply for 110 220 VAC operation WARNING Free air flow must be maintained in...

Страница 10: ...tes collision 3 DIP Switches These two groups configure the Fast Ethernet ports F H Sets Full or Half Duplex mode A M Sets Auto negotiation or Manual mode 10 100 Sets 10Mbps or 100Mbps rate See Device...

Страница 11: ...t In order to work in forced mode A M AutoNeg Manual must be set to DOWN The F H Duplex and 10 100 Rate modes must be pre set Half Full Duplex Operation Each port of the NH 210 is capable of supportin...

Страница 12: ...y adjusts to any outlet providing between 90 VAC and 264 VAC at 50 60 Hz For a 115 Volt configuration use minimum type SJT SVT 18 3 power cord rated 250 Volts AC 10 Amps with a maximum length of 15 fe...

Страница 13: ...ding of supply circuits that could have an effect on overcurrent protection and supply wiring Grounding Reliable earthing of this equipment must be maintained Particular attention should be given to s...

Страница 14: ...the unit is plugged into a grounded functioning AC outlet providing between 90 VAC and 264 VAC at 50 60 Hz Check the power fuse and replace if blown CAUTION For continued protection against fire repl...

Страница 15: ...equipment attached to the switch is properly configured See Ports Statistics Device Management If you encounter any situations or problems you cannot solve obtain if possible the following information...

Страница 16: ...3 5 100 meters Connectors UTP STP RJ 45 10Base T and 10 100Base TX ports PC Parallel Port DB 25 Management port Diagnostics All Ports A C Green ON indicates port acttivity Yellow ON indicates port is...

Страница 17: ...reset Performance Learning Table NH 210 32 32 MAC addresses NH210 2K Up to 2K MAC addresses Aggregate throughput 420 Kpps Physical H x W x D 44 4 x 219 x 304 mm 1 75 x 8 62 x 12 Weight 1 2 kg 2 64 lb...

Страница 18: ...NH210 QXD 21 6 99 13 22 Page 14...

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