Contemporary-control-systems PCI20U Adapters Bedienungsanleitung PDF herunterladen

PCI20U

Universal Voltage PCI Bus ARCNET® Network Interface Modules

INSTALLATION GUIDE

INTRODUCTION

The PCI20U series of ARCNET network interface modules (NIMs) links

PCI and PCI-X bus compatible computers with the ARCNET local area

network (LAN). Since most PC motherboards have migrated from the +5 V

PCI Bus to the +3.3V PCI Bus, a universal voltage PCI NIM is required. In

addition, the PCI20U series supports the PCI Add-in card specification.

Both standard height and low-profile brackets are provided. The PCI Bus

allows for jumperless configuration and Plug and Play operation. The module

operates with either an NDIS driver or a null stack driver in a Windows

environment. DOS drivers will operate when used with our enabler software.

Since the PCI20U is a universal voltage PCI card it can be used in either a

PCI-X slot or a conventional PCI slot. PCI-X is an enhancement to the

original PCI Local Bus Specification enabling devices to operate at speeds up

to 133 MHz. If a PCI20U is installed into a bus capable of PCI-X operation,

the clock remains at the 33 MHz frequency and other devices on that bus are

restricted to using conventional PCI protocol.

The PCI20U incorporates the COM20022 ARCNET controller chip with

enhanced features over the earlier generation ARCNET chips. New features

include command chaining, sequential access to internal RAM, duplicate node

ID detection and variable data rates up to 10 Mbps. Bus contention problems

are minimized since the module’s interrupt level and I/O base address are

assigned through Plug and Play. There is no requirement for wait-state

arbitration.

The PCI20U exploits the new features of the COM20022. This includes

10 Mbps communications utilizing the various EIA-485 transceiver options.

Each PCI20U module has two LEDs on the board for monitoring network

operation and bus access to the module. It is equipped with an 8 position,

general purpose DIP switch typically used to assign the ARCNET node

address. Ultimately, the node address is configured via software so the DIP

switch can also indicate user-defined functions such as data rate, cable

interface, or master/slave status of the system.

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Inhaltsverzeichnis

Seite 1 - INSTALLATION GUIDE

PCI20UUniversal Voltage PCI Bus ARCNET® Network Interface ModulesINSTALLATION GUIDEINTRODUCTIONThe PCI20U series of ARCNET network interface modules (

Seite 2 - Power Requirements

TD030700-0IG10-4000 AC-Coupled EIA-485 (backplane mode)The -4000 transceiver is used when backplane mode operation is desired. It issimilar to the -4

Seite 3 - Software Drivers

TD030700-0IG11NEED MORE HELP INSTALLING THIS PRODUCT?More information can be found on our web site at www.ccontrols.com. Browsethe Technical Support

Seite 4 - Indicator Lights

TD030700-0IG12[This page was deliberately left blank.]

Seite 5 - -CXS Coaxial Star

TD030700-0IG2There are several versions of the PCI20U ARCNET NIM. Three models sup-port traditional ARCNET 2.5 Mbps di-pulse transceivers. The PCI20

Seite 6 - -TB5 Twisted-Pair Bus

INSTALLATIONThe PCI20U can be installed in any PCI Bus compatible computer. With thepower detached from the computer, remove the cover of the computer

Seite 7 - 12345678

TD030700-0IG4Legacy ISA Software DriverThe PCI20U is register compatible with our PCX20 ISA adapter, PC10420PC/104 adapter, PCM20 PC card adapter, as

Seite 8

TD030700-0IG 5FIELD CONNECTIONSThe PCI20U is available in several transceiver options. Each transceiver,which is matched to a particular cable type,

Seite 9 - -485X AC-Coupled EIA-485

TD030700-0IG6Active hubs provide overall better performance than passive hubs sincegreater distances can be achieved along with a degree of isolation.

Seite 10 - TD030700-0IG

TD030700-0IG7Figure 4 — TB5 NIMs are connected in a daisy-chain fashion.-485D DC-Coupled EIA-485 (Non-Backplane Mode)The PCI20U-485D supports DC-cou

Seite 11 - DECLARATION OF CONFORMITY

BiasIn addition to the termination, it is also necessary to apply bias to thetwisted-pair network so that when the line is floated, differential recei

Seite 12

TD030700-0IG9Segments of -485D connected NIMs can beextended through the use of active hubs. Selectan AI Series hub or repeater with a -485Dcompatib

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Contemporary-control-systems PCI20U Adapters Bedienungsanleitung

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