3Com S21x installation manual Access by Analog Modem, Country Data Rate Telephone Number

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3Com Bulletin The 3Com BBS contains patches, software, and drivers for 3Com products. This

Board Service service is available through analog modem or digital modem (ISDN) 24 hours a day, 7 days a week.

Access by Analog Modem

To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. Call the telephone number nearest you:

Country

Data Rate

Telephone Number

 

 

 

Australia

Up to 14,400 bps

61 2 9955 2073

Brazil

Up to 14,400 bps

55 11 5181 9666

France

Up to 14,400 bps

33 1 6986 6954

Germany

Up to 28,800 bps

4989 62732 188

Hong Kong

Up to 14,400 bps

852 2537 5601

Italy

Up to 14,400 bps

39 2 27300680

Japan

Up to 14,400 bps

81 3 3345 7266

Mexico

Up to 28,800 bps

52 5 520 7835

P.R. of China

Up to 14,400 bps

86 10 684 92351

Taiwan,

Up to 14,400 bps

886 2 377 5840

R.O.C.

 

 

U.K.

Up to 28,800 bps

44 1442 438278

U.S.A.

Up to 28,800 bps

1 408 980 8204

 

 

 

3ComFacts Automated Fax Service

Support from Your Network Supplier

Access by Digital Modem

ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to

56 Kbps. To access the 3Com BBS using ISDN, use the following number:

1 408 654 2703

The 3ComFacts automated fax service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.

Call 3ComFacts using your Touch-Tone telephone:

1 408 727 7021

If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.

When you contact your network supplier for assistance, have the following information ready:

Product model name, part number, and serial number

A list of system hardware and software, including revision levels

Diagnostic error messages

Details about recent configuration changes, if applicable

D-2

Technical Support

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Contents 3Com Corporation Restricted Rights Notification for U.S. Government Users Restricted Rights LegendProprietary Material Page About This Manual OverviewTrademarks Product Company/OrganizationAbout This Manual How to Use This Manual This section Describes ChapterDescriptions Documentation Related DocumentationOther PathBuilder S200Page Contents Contents Chapter CTP Port FeaturesStandard Features Dual DaughtercardDual FXS Voice Voice RelayDaughtercard RelayDIM Site RFC 877 ServiceFrame Relay RFCTarget Application Environments Security Monitoring Central Office At Branch Office Target Application Environments Installing the PathBuilder S21x Switch Hardware Overview Step To Perform This Action See This ProcedureChecking Your Shipment Contents Choosing a Site Proper Cable and Air Clearance Cabling the PathBuilder S21x Switch Port Port Characteristics Cable RequirementsPort Connector Interface Cable Required Speed DIM Interface Connector 10BaseT Ethernet CableSwitch Setting Front Panel Dip SwitchesSwitches Switch Down Posn NameDaughtercards Installing Optional DaughtercardsOptional Battery Disposal Installing or Removing the Lithium BatteryBattery Type Routine BatteryCoversteps Step ActionInstalling Battery RemovingPowering on the PathBuilder S21x Switch Overview This chapter describesPowering On The PathBuilder S21x Switch SwitchPowerup Diagnostics Panel LEDsSequence Power UpStage When This indicates Accessing the Control Terminal Port Page Software SpecificationsHardware Environmental Electromagnetic CompatibilitySafety Power RequirementsPower Supply DescriptionAppendix B RJ45 Pin Signal Pin Connection On DB25F Adapter CTP Access CableCTP Cable Connector Pinout Pin SpecificationVoice Relay Cable Name FunctionDual FXS Voice Relay Cable FXS10BaseT Crossover Cable Figure B-1. RJ45 PinoutPin Function Camera Interface Connector PinoutRemoteVu Video Cables Cable Pinout Pin Signal FunctionDSU Daughtercard Cable 35/V.36 DCE Pin Function/Signal Name35/V.36 Cable 35/V.36 DTE Cable Pin Function/Signal Name TXD TXD RXD RTS CTS DSR Cable Appendix C This AppendixConnection While Setting Up Your ConfigurationChecking Must be set to Step Action Technical Support Access by Analog Modem Country Data Rate Telephone NumberCountry Telephone Number Support from3Com Returning Country Telephone Number Fax NumberIndex NumericsURL

S21x specifications

The 3Com S21x series represents a breakthrough in networking technology, specifically designed for small to medium-sized businesses looking for reliable and efficient networking solutions. This series is renowned for its robust features, which enhance connectivity while simplifying management, making it a go-to choice for organizations striving to optimize their network infrastructures.

One of the standout features of the 3Com S21x is its impressive port capacity. With multiple Ethernet ports, the switch facilitates seamless connections for various devices, ensuring that businesses can scale their operations without worrying about bandwidth limitations. The S21x supports both Fast Ethernet and Gigabit Ethernet connections, providing flexibility for different networking demands.

In addition to its port capabilities, the 3Com S21x incorporates advanced Power over Ethernet (PoE) technology. This feature enables the switch to deliver power to connected devices such as IP cameras, VoIP phones, and wireless access points directly through the network cable. This not only reduces the need for external power sources but also simplifies installation and lowers overall costs.

Another significant characteristic of the S21x is its Layer 2 switching capabilities. This means the device is equipped to handle basic data switching tasks efficiently, including VLAN support for network segmentation and traffic management. VLANs enhance security by isolating sensitive data traffic within specific segments, providing an additional layer of protection for network resources.

The 3Com S21x is also designed with ease of management in mind. It utilizes a user-friendly web-based interface that allows IT staff to configure and monitor the switch effortlessly. This accessibility ensures that even those with minimal networking experience can manage the device effectively, reducing the likelihood of configuration errors and downtime.

Furthermore, the S21x series is built with reliability at its core. The hardware is designed to withstand typical operating conditions in an office environment, minimizing the risk of failure and ensuring consistent performance. Coupled with a focus on energy efficiency, this series helps businesses reduce their operational costs while maintaining a green footprint.

In summary, the 3Com S21x series stands out in networking solutions for small to medium-sized enterprises, featuring a robust combination of port capacity, PoE support, Layer 2 functionality, easy management, and reliability. Organizations looking to enhance their network performance will find the S21x to be an invaluable asset, capable of growing with their needs while ensuring efficient and secure connections.