- 3com Network Interface Card User Guide
Table Of Contents
- About This Guide
- Introduction
- Overview
- 3CR990 NIC Features
- DynamicAccess LAN Agent
- Windows2000 Offload Features
- Installing and Connectingthe NIC
- Installing NICDrivers in Windows
- Installing DynamicAccess Software in Windows
- Overview
- Installing the DynamicAccess LAN Agent for a Client NIC
- Installing DynamicAccess Software for a Server NIC
- Configuring Groups and VLANs for a Server NIC
- Planning the Configuration
- Working With Server Features
- Creating a Group
- Adding NICs to a Group
- Specifying a Dedicated IP Address
- Changing an IP Address
- Creating a VLAN
- Specifying Traffic Priorities
- Saving the Configuration
- Disabling Load Balancing for a Group
- Changing the Primary NIC
- Removing a NIC from a Group
- Deleting or Editing a VLAN
- Displaying NIC Properties
- Displaying Group Properties
- Specifying Failover from Gigabit to 10/100 PCI
- Troubleshooting a Load Balancing Configuration
- Changing Windows2000 Property Settings
- Identifying Windows 2000 Miniport and LAN Connections
- Using Windows2000 Offload Features
- Installing DynamicAccess LAN Encryption Software
- Installing NetWare Client and ServerDrivers
- Overview
- Installing and Configuring the NetWare Server Driver
- Using the Latest Support Packs
- Obtaining NetWare Loadable Modules
- Server Software Installation Requirements
- Installing the NetWare 3.12 Server Driver
- Installing the Server Driver for NetWare 4.11 and 5.0 UsingINETCFG
- Installing the Server Driver and DynamicAccess Technology Using AUTOEXEC.NCF
- Installing Multiple Server NICs
- Verifying the PCI Slot Number
- Installing Server Features
- Configuring Groups
- Verifying the Installation and Configuration
- Changing NetWare Driver Configuration Parameters
- Maintaining Groups
- Configuring the NIC
- Configuring IP Security
- Troubleshooting the NIC
- Running NIC Diagnostics
- Obtaining Drivers
- Specifications and CablingRequirements
- Installing the 3ComDMIAgent
- EtherCD Content and Navigation
- Installing a 3Com NIC While Installing the NOS
- Technical Support
- Index
- FCC Class B Statement
- FCC Declaration of Conformity
- Industry Canada Class B Emission ComplianceStatement
- Avis de Conformité à la Réglementation d’IndustrieCanada
- VCCI Class B Statement
- 3Com End User Software License Agreement
- Product Registration
![](/manual/3com/3cr990svr95/3com-network-interface-card-user-guide/images/img-151.png)
Cabling Requirements 155
The EIA/TIA defines five categories of unshielded
twisted-pair cable.
10BASE-T Operation
10BASE-T is the Institute of Electrical and Electronics
Engineers (IEEE) 802.3 standard for Ethernet signaling
over unshielded twisted-pair wire at 10 Mbps.
Ethernet, as the most widely used network protocol,
uses 10BASE-T as its primary cabling scheme. Ethernet
characteristics include:
■ A data rate of 10 Mbps.
■ A broadcast architecture.
■ A specific media-access control (MAC) scheme.
The 10BASE-T name indicates a signaling speed of
10 Mbps and twisted-pair wiring. Base stands for
baseband, which denotes a technique for transmitting
signals as direct-current pulses rather than modulating
them onto separate carrier frequencies.
A wiring topology using 10BASE-T specifies a wiring
hub, cable arranged in a star configuration, and unshielded
twisted-pair cable. Each node has a separate cable run that
must not exceed 100 meters (328 ft) from the node to
the hub.
Category Use
1 Traditional telephone cable.
2 Data transmissions up to 4 MHz.
3 Voice and data transmission up to 25 MHz. The cable
typically has four pairs of wires. Category 3 is the
most common type of installed cable found in older
corporate wiring schemes.
4 Voice and data transmission up to 33 MHz. The cable
normally has four pairs of wire. This grade of UTP is
not common.
5 Voice and data transmission up to 125 MHz. The cable
normally has four pairs of copper wire and three twists
per foot. Category 5 UTP is the most popular cable
used in new installations today.