Moxa Technologies PCI Express Board Instrukcja Użytkownika Pobierz pdf (Strona 12)

e-mail:info@moxa.com.tw www.moxa.com

Multiport Serial Board Guidebook

PCI Express Introduction

A single PCI Express serial link is a dual-simplex

connection using two pairs of wires (one pair for

transmit and one pair for receive) to transmit only

one bit per cycle. Although this sounds limiting,

it can transmit at the extremely high speed of 2.5

Gbps, which equates to a burst mode of 320 Mbps

(Mega-bytes/sec) on a single connection. These two

pairs of wires is called a lane.

What’s the difference between PCI and PCI Express

PCI Express uses a serial interface and allows for

point-to-point interconnections between devices

using directly wired interfaces between these connec-

tion points. This differs from previous PCI bus archi-

tectures that used a shared, parallel bus architecture.

Moxa Multiport Serial Board Slot Type Selection Guide

Interface 2P RS-232 4P RS-232 8P RS-232 2P RS-485 4P RS-485 8P RS-485

ISA

√ √ √ √ √

PC/104

√ √

PCI

√ √ √ √ √

PCI-X

√ √ √ √ √ √

PCI Express*

√ √ √

* For detailed information about all products, please visit Moxa’s website or contact our distributors.

* PCI Express boards will be available before the end of October, 2005.

PCI Replacement

PCI Express is the industry’s attempt to unify all of the

current different types of I/O bus into a single “future

proof” standard. Over the past ten years, PCI has

handled the large and varying uses it has been given,

most of which were never foreseen when the speci-

ﬁcation was created. Current PCI speciﬁcations are

based on a multi-drop, parallel bus implementation

that is coming very close to its performance limits,

which cannot be stretched without spending a large

amount of money for very little gain.

Bus Trend

Different Form Factor

PCI Express

PCI-X

PCI

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 23 24

Komentarze do niniejszej Instrukcji

Brak uwag

Moxa Technologies PCI Express Board Instrukcja Użytkownika Strona 12

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Konwertery / repeatery / izolatory szeregowe Moxa Technologies PCI Express Board