HP -PB 10 User Manual download pdf (Page 10)

10 Chapter1

Installing and Conﬁguring 10/100Base-TX/9000

Introduction

The HP-PB 10/100Base-TX/9000 product provides the means for

interfacing various types of HP 9000 Series 800 computers to either a

10Base-T or 100Base-TX network. Refer to the Release Notes for the list

of supported systems.

100Base-TX is a subset of 100Base-T networking deﬁned by the IEEE

802.3u-1995 standard. 100Base-TX provides 100 Mbit/s data

transmission over category 5 unshielded twisted-pair (UTP) cable. Two

pairs of wires in the cable are used--one wire pair is for receiving data,

and one wire pair is for transmitting data. The same card port that

supports 100Base-TX operation can also support 10Base-T operation.

IEEE 802.3u 100Base-TX LANs have topologies very similar to10Base-T

LANs; however certain aspects of the topology such as the maximum

permitted cable lengths are more stringent for 100Base-TX than for

10Base-T. The category 5 UTP cable used in 100Base-TX networks

between devices such as an HP computer and a 100Base-TX hub must be

less than 100 meters long.

For more information on network topologies and associated speciﬁcations

for 100Base-TX networking, refer to the IEEE 802.3u speciﬁcation. Also,

a useful practical reference is Fast Ethernet, Dawn of a New Network by

HowardW. Johnson (published 1996 byPrentice Hall PTR, Upper Saddle

River, New Jersey 07458. Phone 800-382-3419. The ISBN number is

0-13-352643-7).

Announcements

There are no changes in the way the HP-PB 10/100Base-TX/9000 LAN

card works for this release. As of June 1999, the product has a new

product number: A3495A. This release supports the ability to change

speed and duplex mode in the System Admin Manager (SAM). This

release also provides upport for MTU size setting/resetting using

lanadmin -[m|M|R].

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HP -PB 10 User Manual Page 10