IBM 704 User Manual download pdf (Page 88)

Configuring the 100/10 PCI Ethernet Adapter

Configuring for Full-Duplex

If you have a hub that does not support auto-negotiation, manually

configure the adapter for full-duplex support. Configuration is

specific to the driver that you are loading for your network

operating system. Refer to Table 1.

Note: You must set the adapter speed when configuring for

full-duplex support. Do not leave the speed set to

auto-negotiate.

Table 1. Setting Duplex Mode

Driver How To Set Duplex Mode

Windows NT

Server 3.51

Define the Setup program:

1. Click Network on the Control Panel

2. Click Configure. The Setup program runs.

3. Click Change. Set the speed to 100 Mbps or 10 Mbps.

4. Click Advanced. Set Duplex to Full.

Other Network

Operating

Systems

See the README file. To view the README files, insert

the Ethernet Configuration and Drivers diskette, and type

SETUP \README at the DOS prompt. Then, press Enter.

Fast Ethernet Cabling

The 100BASE-TX specifications support 100 Mbps transmission over

two or four pairs of twisted-pair Ethernet cabling. In two pair

cabling, one pair of cables is used for transmission, and the second

is used for reception and collision detection.

Because a 125 MHz frequency is used on the wire, 100BASE-TX uses

Category 5 cabling.

Segment lengths are limited to 100 meters (328 feet) with

100BASE-TX for signal timing reasons.

Fast Ethernet Hubs

New hubs are available to support a variety of Fast Ethernet LAN

configurations. These hubs can be divided into two basic types:

shared and switched. 100/10 PCI Ethernet adapters can be used

with either type of hub for 10 Mbps or 100 Mbps operations.

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IBM 704 User Manual Page 88