Brainboxes CC-368 Manual de usuario

PCI Quad Opto

RS422/485 Card 1.1

By Paul D. Sinclair.

PCI Quad 422/485 Card Contents

Contents

Introduction 1

Guarantee. ..................................................................................................................... 1

Copyright.......................................................................................................................1

BRAIN BOXES Limited................................................................................................ 1

ACKNOWLEDGEMENTS............................................................................................ 1

Chapter 1 Serial Solutions 2

Serial Solutions For DOS. .............................................................................................. 2

Serial Solutions For Windows 3.x................................................................................... 3

Serial Solutions For Windows 9x.................................................................................... 4

Serial Solutions For Windows NT. ................................................................................. 4

Serial Solutions for Windows 2000................................................................................. 4

Complete Documentation and Technical Backup............................................................ 5

Chapter 2 Hardware Configration 6

Introduction ................................................................................................................... 6

Card Features................................................................................................................. 6

Autogating..................................................................................................................... 7

Card Layout and Specifications...................................................................................... 7

Port Pinouts. .................................................................................................................. 8

Configuring the Card...................................................................................................... 8

Optical Isolation............................................................................................................10

Chapter 3 Installing the Card 11

STEP 1:Remove Cover Mounting Screws..................................................................... 11

STEP 2:Remove The PC Cover.................................................................................... 11

STEP 3: Remove the Blanking Cover........................................................................... 12

STEP 4: Insert The Card.............................................................................................. 12

STEP 5: Secure the Card into Your PC......................................................................... 12

STEP 6: Replace Cover................................................................................................ 13

STEP 7: Reattach All Cables........................................................................................ 13

Problems! .................................................................................................................... 13

Chapter 4 DOS Software Configration 14

Introduction. ................................................................................................................ 14

Determining PCI RS422/485 Resources........................................................................ 14

NEWCOM.SYS Parameters......................................................................................... 14

Configuring And Installing NEWCOM.SYS................................................................. 15

Modifying Command Line Parameters. ........................................................................ 16

Chapter 5 Windows 3.x Software Configuration. 17

Introduction ................................................................................................................. 17

Determining PCI Resources......................................................................................... 17

Windows 3.x Driver Installation................................................................................... 17

Serial Port Installation.................................................................................................. 18

PCI Quad 422/485 Card Contents

Configuring The COM Ports. ....................................................................................... 20

Deleting Ports in Windows........................................................................................... 21

Chapter 6 Windows 95 Software Configuration 22

Introduction ................................................................................................................. 22

Card Settings ............................................................................................................... 24

Port Settings................................................................................................................. 26

Serial Solutions Port Settings ....................................................................................... 29

Chapter 7 Windows 98/Millenium Installation. 31

Checking the Installation.............................................................................................. 33

Card Settings ............................................................................................................... 34

Port Settings................................................................................................................. 36

Chapter 8 Windows NT 4.0 Installation. 40

Introduction ................................................................................................................. 40

Software Installation. ................................................................................................... 40

Examining Card Configuration..................................................................................... 41

Card Setup................................................................................................................... 41

Configuring Ports......................................................................................................... 42

Advanced Port Settings................................................................................................ 43

Uninstalling Serial Solutions PCI. ................................................................................ 44

Chapter 9 Windows 2000 Installation 45

Software Installation .................................................................................................... 45

Checking your Installation............................................................................................ 47

Chapter 10 Optional RS422/485 Operation 49

The RS422 Standard. ................................................................................................... 49

The RS485 Standard. ................................................................................................... 49

Terminating Impedance’s............................................................................................. 50

Fail Safe Open Circuit Detection.................................................................................. 50

Fail Safe Short Circuit Protection. ................................................................................ 50

RS422 Operation.......................................................................................................... 50

RS422 Serial Port Cables. ............................................................................................ 50

Serial Port 1 To Other PC Cable................................................................................... 51

RS485 Operation.......................................................................................................... 51

RS485 Cable................................................................................................................ 52

RS485 One Talker - Many Listeners, Half Duplex........................................................ 52

Half Duplex Settings of RS485 Multiplex..................................................................... 52

RS485 Many Talkers- Many Listeners, Half Duplex..................................................... 52

RS485 Many Talkers- Many Listeners, Full Duplex...................................................... 53

Optional Grounding Arrangements............................................................................... 54

Index 55

PCI Quad 422/485 Card Introduction

Introduction

Guarantee.

BRAIN BOXES LIMITED guarantee your Serial Port Card for a full 36 months

from purchase, parts and labour, provided it has been used in the specified

manner. In the unlikely event of failure return your interface to BRAIN BOXES

LIMITED or to your Dealer, with proof of purchase, who will determine

whether to repair or replace this product with an equivalent unit.

duplicated, copied, transmitted or reproduced in any way without the prior

written consent of BRAIN BOXES LIMITED.

BRAIN BOXES Limited.

Unit 3C, Wavertree Boulevard South,

Wavertree Technology Park,

Liverpool, L7 9PF,

England.

Telephone: 0151-220 2500

Fax: 0151-252 0446

E-mail: help@brainboxes.com /sales@brainboxes.com

Web: www.brainboxes.com

ACKNOWLEDGEMENTS.

BRAIN BOXES is a trademark of BRAIN BOXES LIMITED.

IBM, COMPAQ, Hewlett Packard, H.P. and EPSON are trademarks of the

relevant companies. OS/2 and Microchannel Architecture are trademarks of

IBM. Windows is a trademark of Microsoft.

PCI Quad 422/485 Card Chapter 1 Serial Solutions

Chapter 1 Serial Solutions

This chapter is a brief description of the Serial Solutions software package; this

can also be purchased SEPARATELY and is available from YOUR DEALER.

The perfect partner for anySerial Port is Serial Solutions Software! Serial

Solutions is a fully featured suite of programs designed to squeeze the most from

PC serial communications.

Serial Solutions is made up of the following components: -

Serial Solutions for DOS

Serial Solutions for Windows 3.x

Serial Solutions for Windows 9x

Serial Solutions for Windows NT

Serial Solutions for Windows 2000

All the Serial Solutions drivers have the following features: -

Drivers for PC FIFO UARTs e.g. 16550 as well as the new improved 32 byte

16650 and 64 byte 16750 UARTs.

Support for any mix of RS232, RS422, and RS485 handshake schemes.

Support for wider range of Baud rates and for more than 4 serial ports.

Serial Solutions For DOS.

Serial Solutions for DOS consists of the following programs: -

NewCOM.sys

A device driver, it supports COM1 to COM16, allowing 16 serial ports to be

used under DOS. It also includes an interrupt handler for enhanced performance

with user definable buffer sizes. Accessible from all DOS languages, it is the

heart of the Serial Solution.

It has extensive handshaking support, implementing both hardware handshaking

using any combination of the DTR, DSR, CTS, RTS, and DCD lines, and a

software handshake using the XON/XOFF protocol.

NewCOM24.sys

A device driver providing support for 24 ports.

NewCOM32.sys

A device driver providing support for 32 ports.

NewMode.exe

A replacement for the DOS ’mode com...’command. NewMode is used to set the

serial parameters, including the port address, IRQ line used, the baud rate, parity

and data and stop bit options. Baud rates supported are from 110 baud to

115,200 baud! Included is a very handy query mode that reports the settings of

the various serial ports. Flexible and fast!

EASY programs

PCI Quad 422/485 Card Chapter 1 Serial Solutions

The EASY disk contains short, simple to understand and use EASYBAS,

EASYC and ASYPAS programs, providing straight forward, file type I/O to

serial ports with debug information. Use these FIRST, base your sample

applications on them. Source code, make files and compiled ready to run

programs supplied.

TERM programs

A suite of larger terminal emulation programs written in C (Cterm), Assembly

language (Aterm), Pascal (Pasterm), BASIC (BASterm) and FORTRAN

(FORterm) show how to access the NEWBIOS routines as well as the simple file

I/O to ports. They contain many lines of code and are thus harder to grasp. They

demonstrate in depth serial port programming in a variety of languages but they

are also useful tools for using serial devices.

Comtest.exe

Comtest is a short but invaluable program that is used to check that the serial

port at a particular I/O address is functioning correctly and is connected to the

particular IRQ line. The program correctly identifies the UART type by

employing the built in loop back capability of the PC serial port chip, a full test

of the baud rate generator, transmitting and receiving buffer, parity enable and

start stop bit is performed. There is no need for a second serial port or a cable

when using this utility.

Serial Solutions For Windows 3.x

Serial Solutions for Windows 3.x works with Windows 3.0, 3.1 and 3.11 as well

as Windows For Workgroups 3.11.

Serial Solutions for Windows 3.x consists of the following programs: -

Setup.exe

The install routine for the package.

Port.DLL

Enhanced Control Panel applet. Allows configuration of extra serial ports from

the Windows Control Panel. Supports single as well as multiport cards using

shared interrupts.

BbLynx.drv

Replacement for COMM.DRV.

LynxAPI.dll

Enhancement to the Windows Comms API’s allowing support for more than 9

ports.

Term.exe

Terminal program.

EasyCWIN

C source code, project files and ready to run.exe program for an easy to

understand Windows terminal program. Learn how to write Windows comms

apps correctly the easy way.

PCI Quad 422/485 Card Chapter 1 Serial Solutions

Serial Solutions For Windows 9x.

Windows 95 has an improved communication API and directly supports up to

255 ports. Our Windows 95 driver supports the shared interrupt mechanism used

on our multiport cards. Serial Solutions for Windows 95 consists of the

following programs: -

PCI.inf

The information files to aid the

ISA.inf

Installation process "Have Disk....”

ssmodem.inf

Setup file for Serial Solutions modems.

sscardui.dll ssportui.dll

The device manager configuration DLLs and…

ssenum.vxd ssv485.vxd

…the virtual device drivers providing the shared

ssvel.vxd ssmult.vxd ssm485.vxd

interrupt handlers and dispatch routines etc for the various Serial Solutions

serial cards.

Serial Solutions For Windows NT.

Windows NT has an improved communication API and directly supports up to

255 ports. No extra driver is necessary for Windows NT to drive multiport cards.

Serial Solutions for Windows NT consists of the following programs: -

Setup.exe

Expands into the Control Panel applet and associated files which allows the

configuration of all ports on Serial Solutions serial cards.

Ssmodem.inf

Setup file for Serial Solutions modems.

Serial Solutions for Windows 2000

BBISA.inf, BBMulti.inf, BBPCMCIA.inf

The ISA...PCI...and PCMCIA card information files, which make the installation

with the hardware installation wizard possible.

BBPort.inf

Information file, which contains information for the installation of individual

ports.

ssInstal.sys

The driver, which handles the installation and setup of each card, be it PCI, ISA

or PCMCIA.

PCI Quad 422/485 Card Chapter 1 Serial Solutions

SsPort.sys

The driver, which gets COM ports going.

SsPar.sys

The driver for Parallel ports

SsCard.dll

A Dynamic Link Library, which provides a user interface to configure cards and

their ports under Device Manager / Multi-port serial adapters

SsCard.hlp

The help file for the SsCard.dll user interface.

Complete Documentation and Technical Backup.

We believe in supplying complete documentation with every package we sell.

We guarantee your Serial Solution Software package for a full 12 months from

purchase. A complete technical backup service is available to ensure that you get

the maximum performance out of your investment.

PCI Quad 422/485 Card Chapter 2 Hardware Configration

Chapter 2 Hardware

Configration

Introduction

This chapter details the specifications of the PCI quad opto RS422/485 card and

explains how to configure the RS485 Multiplex jumpers present on both cards.

These half-sized cards will work happily in any PCI 2.0 or greater compliant PC

compatible.

Card Features.

¾

Four independent 9 pin D RS422/485 Serial ports.

¾

Reliable communications up to 4000 feet, 1.2 Kilometres.

¾

16950 FIFO provides 128-byte input and 128-byte output buffer on each

port.

¾

Maximum baud rate of 912600 Baud (1 Megabaud).

¾

Word length of 5, 6, 7 or 8 bits.

¾

Even, Odd, None, Mark or Space parity options.

¾

1 start bit always sent.

¾

1, (1.5 for 5-bit data word length), or 2 stop bits.

¾

TXD, RXD, RTS, and CTS signals.

¾

RS485 TXD/RXD multiplex selectable by jumpers: - either FULL

DUPLEX or HALF-DUPLEX.

¾

Fully double buffered for reliable asynchronous operation.

¾

High-speed integrated circuitry ensures operation with fast PC’s e.g. 800

MHz Pentium II WITHOUT extra wait states.

¾

Autogating low level RS485 half duplex (2 wire) control

Clock Input: 60.00mHz

Drivers: SN75174

High Level Voltage: 3.7V typical at 33mA source

Low Level Voltage: 1.1V typical at 33mA source

High Level Current: -60mA max.

Low Level Current: 60mA max.

Receivers: SN75175.

Difftial I/P threshold: 200mV max.

Hysteresis: 50mVolt typical.

Input Impedance: >12K Ohm without terminators.

PCI Quad 422/485 Card Chapter 2 Hardware Configration

Autogating.

Multitasking operating systems, like Windows 95, Windows NT, OS/2 and

UNIX, cannot successfully use the RTS line to control the gating of the PC’s

transmitter. Whilst they can set the RTS line true just before the data

transmission starts, they cannot set the RTS line false quickly enough after the

data has gone. This is due to the time slicing mechanism used by these

multitasking operating systems. The interrupt service routines in multitasking

OS’s have a long latency, i.e. time taken to switch context from the foreground

program to the interrupt routine. During this time, the first few bytes of the

external devices reply to the PC may be lost since the serial port transmitter is

still gated onto the twisted pair cable.

To overcome this problem, The 16950 has on chip autogating. This option

requires a special device driver (supplied) this automatically detects the start of

the PC’s data transmissions, and gates the PC’s transmitter onto the twisted pair

cable. It then automatically detects the last stop bit being sent and gates the port

off the twisted pair cable but to an application on the host PC. It looks just like

an ordinary RS232 COM port. Autogating for half duplex operation is a

necessity for Windows 95, NT and Windows 2000.

Card Layout and Specifications.

PCI Quad Opto RS422/485 Specifications:

Dimensions: 4.2 x 7.8 in, 106 x 205 mm

I/O Connection: 37 way female D connector to 4 serial ports

Serial Port 1: 9 pin Male D type.

Serial Port 2: 9 pin Male D type.

Serial Port 3: 9 pin Male D type.

Serial Port 4: 9 pin Male D type.

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