Measurement Computing PCI-QUAD-AC5 User Manual

i

PCI-QUAD-AC5

High Output Digital I/O Board

User’s Guide

© Copyright 2005, Measurement Computing Corporation

Document Revision 2, July, 2005

Your new Measurement Computing product comes with a fantastic extra —

Management committed to your satisfaction!

Refer to www.mccdaq.com/execteam.html for the names, titles, and contact information of each key executive at
Measurement Computing.

Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now
enjoy the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our
two missions:

 To offer the highest-quality, computer-based data acquisition, control, and GPIB hardware and software available—

at the best possible price.

 To offer our customers superior post-sale support—FREE. Whether providing unrivaled telephone technical and

sales support on our latest product offerings, or continuing that same first-rate support on older products and
operating systems, we’re committed to you!

Lifetime warranty: Every hardware product manufactured by Measurement Computing Corporation is warranted
against defects in materials or workmanship for the life of the product. Products found defective are repaired or replaced
promptly.

Lifetime Harsh Environment Warranty®: We will replace any product manufactured by Measurement Computing
Corporation that is damaged (even due to misuse) for only 50% of the current list price. I/O boards face some tough
operating conditionssome more severe than the boards are designed to withstand. When a board becomes damaged, just
return the unit with an order for its replacement at only 50% of the current list price. We don’t need to profit from your
misfortune. By the way, we honor this warranty for any manufacturer’s board that we have a replacement for.

30 Day Money Back Guarantee: You may return any Measurement Computing Corporation product within 30 days
of purchase for a full refund of the price paid for the product being returned. If you are not satisfied, or chose the wrong
product by mistake, you do not have to keep it. Please call for an RMA number first. No credits or returns accepted
without a copy of the original invoice. Some software products are subject to a repackaging fee.

These warranties are in lieu of all other warranties, expressed or implied, including any implied warranty of
merchantability or fitness for a particular application. The remedies provided herein are the buyer’s sole and exclusive
remedies. Neither Measurement Computing Corporation, nor its employees shall be liable for any direct or indirect,
special, incidental or consequential damage arising from the use of its products, even if Measurement Computing
Corporation has been notified in advance of the possibility of such damages.

HM PCI-QUAD-AC5.doc

ii

Trademark and Copyright Information

TracerDAQ, Universal Library, InstaCal, Harsh Environment Warranty, Measurement Computing Corporation, and the
Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation.

SoftWIRE is a registered trademark of SoftWIRE Technology, Inc.

Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation

LabVIEW is a trademark of National Instruments.

All other trademarks are the property of their respective owners.

Information furnished by Measurement Computing Corporation is believed to be accurate and reliable. However, no
responsibility is assumed by Measurement Computing Corporation neither for its use; nor for any infringements of patents
or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any
patent or copyrights of Measurement Computing Corporation.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form
by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of
Measurement Computing Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product
for use in life support systems and/or devices without the written approval of the CEO of Measurement
Computing Corporation. Life support devices/systems are devices or systems which, a) are intended for
surgical implantation into the body, or b) support or sustain life and whose failure to perform can be
reasonably expected to result in injury. Measurement Computing Corporation products are not designed with
the components required, and are not subject to the testing required to ensure a level of reliability suitable for
the treatment and diagnosis of people.

iii

Table of Contents

Preface

About this User's Guide .......................................................................................................................v

What you will learn from this user's guide.........................................................................................................v

Conventions in this user's guide .........................................................................................................................v

Where to find more information........................................................................................................................vi

Chapter 1

Introducing the PCI-QUAD-AC5....................................................................................................... 1-1

Overview: PCI-QUAD-AC5 features............................................................................................................. 1-1

Software features............................................................................................................................................ 1-1

Block Diagram................................................................................................................................................ 1-2

Chapter 2

Installing the PCI-QUAD-AC5........................................................................................................... 2-1

What comes with your PCI-QUAD-AC5 shipment?...................................................................................... 2-1

Standard components..................................................................................................................................................... 2-1

Optional components ..................................................................................................................................................... 2-2

Unpacking the board ...................................................................................................................................... 2-2

Installing the software .................................................................................................................................... 2-3

Installing the hardware ................................................................................................................................... 2-3

Connecting the board for I/O operations ........................................................................................................ 2-4

Connectors, cables – main I/O connector ...................................................................................................................... 2-4

Pinout – main I/O connectors ........................................................................................................................................ 2-4

Field wiring and signal termination ............................................................................................................................... 2-6

Chapter 3

Programming and Developing Applications .................................................................................. 3-1

Programming languages ................................................................................................................................. 3-1

Packaged applications programs .................................................................................................................... 3-1

Register-level programming........................................................................................................................... 3-1

Chapter 4

Functional Details ............................................................................................................................. 4-1

Signal connections.......................................................................................................................................... 4-1

82C55 emulation ............................................................................................................................................ 4-1

Pull-up and pull-down resistors...................................................................................................................... 4-1

TTL to solid state relays ................................................................................................................................. 4-3

Chapter 5

Specifications.................................................................................................................................... 5-1

Power consumption ........................................................................................................................................ 5-1

Digital input / output ...................................................................................................................................... 5-1

Environmental ................................................................................................................................................ 5-1

Mechanical ..................................................................................................................................................... 5-1

Main connector and pin out............................................................................................................................ 5-1

P1................................................................................................................................................................................... 5-2

P2................................................................................................................................................................................... 5-2

P3................................................................................................................................................................................... 5-3

P4................................................................................................................................................................................... 5-3

iv

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the PCI-QUAD-AC5 board so that you get
the most out of its digital I/O features.

This user's guide also refers you to related documents available on our web site, and to technical support
resources.

Conventions in this user's guide

The following conventions are used in this manual to convey special information:

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you
are reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and

others, damaging your hardware, or losing your data.

<#:#>

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or

Angle brackets that enclose numbers separated by a colon signify a range of numbers, such those
assigned to registers, bit settings, etc.

boxes. For example:

1. Insert the disk or CD and click the OK button.

phrase. For example:

 The InstaCal installation procedure is explained in the Quick Start Guide.
 Never touch the exposed pins or circuit connections on the board.

v

PCI-QUAD-AC5 User's Guide About this User's Guide

Where to find more information

The following electronic documents provide helpful information relevant to the operation of the PCI­QUAD-AC5.

 MCC's Specifications: PCI-QUAD-AC5 (the PDF version of Chapter 6 in this guide) is available on

our web site at www.mccdaq.com/pdfs/PCI-QUAD-AC5.pdf.

 MCC's Register Map for the PCI-QUAD-AC5 Series is available on our web site at

www.mccdaq.com/registermaps/RegMapPCI-QUAD-AC5.pdf

Software-Quick-Start.pdf.

 MCC's Guide to Signal Connections is available on our web site at

www.mccdaq.com/signals/signals.pdf

.

 MCC's Universal Library User's Guide is available on our web site at

.

 MCC's Universal Library Function Reference is available on our web site at

 MCC's Universal Library for LabVIEW

™

User’s Guide is available on our web site at

.

AC5.pdf.

.

vi

Chapter 1

Introducing the PCI-QUAD-AC5

Overview: PCI-QUAD-AC5 features

The PCI-QUAD-AC5 is a 96-bit, high output, digital I/O board for PCI-compatible computers. Primarily
designed as a direct interface to the industry-standard SSR-PB24 rack, the board is also highly useful as a
general purpose digital I/O board.

The 96-bits of digital I/O are organized into four 24-bit groups based on an 82C55 mode 0 emulation (no
strobed I/O or bi-directional I/O bits). Each 24-bit group is divided into three eight-bit ports labeled
PORTA, PORTB and PORTC. PORTC can be split into two four-bit nibbles — Port C-HI and Port C­LO. Each of these ports may be individually programmed as input or output.

All inputs and outputs are TTL compatible. The digital output drivers are 74S244 chips that can sink
64 mA and source 15 mA. The input buffers are 74LS373 chips and have standard high input impedance
of the 74LS series devices. All I/O is brought out to a 50-pin connectors, which also allows connection to
the PC’s +5 Volt and Ground.

On power up and reset, all I/O bits are set to input mode. If you are using the board to control items that
must be OFF on reset, install pull-down resistors. Each board is equipped with open locations where you
can install SIP resistor networks for either pull-up or pull-down.

The PCI-QUAD-AC5 board is completely plug-and-play, with no jumpers or switches to set. All board
addresses and interrupt sources are set by the board's plug-and-play software. Board configuration is
controlled by your system's BIOS.

Software features

The following software ships with the PCI-QUAD-AC5 free of charge.

 InstaCal installation, calibration, and test utility
 TracerDAQ™ suite of virtual instruments
 SoftWIRE® for Visual Studio® .NET graphical programming
 MCC DAQ Components for VS .NET (installed with SoftWIRE® for VS .NET)

For information on the features of InstaCal, TracerDAQ, and SoftWIRE, refer to the Quick Start Guide
booklet that shipped with the PCI-QUAD-AC5.

1-1

PCI-QUAD-AC5 User's Guide Introducing the PCI-QUAD-AC5

Block Diagram

PCI-QUAD-AC5 functions are illustrated in the block diagram shown here.

A(7:0)

AC/DC

I/O Module
Racks

AC/DC

4
2

B
P

­R
S
S

4
2

B
P

­R
S
S

B(7:0)

C(7:0)

A(7:0)

B(7:0)

C(7:0)

Port A

Port B

Port C

Port A

Port B

Port C

Control

Control
Bus

Controller FPGA and Logic

Control

Decode/Status

AC/DC

I/O Module
Racks

AC/DC

4
2

B
P

­R
S
S

4
2

B
P

­R
S
S

A(7:0)

B(7:0)

C(7:0)

A(7:0)

B(7:0)

C(7:0)

Port A

Port B

Port C

Port A

Port B

Port C

Bus

Timing

Local Bus

Control

Boot

EEPROM

PCI Bus (5V, 32-BIT, 33MHZ)

Control

PCI

Controller

BADR2

1-2

Installing the PCI-QUAD-AC5

What comes with your PCI-QUAD-AC5 shipment?

As you unpack your board, make sure each of the items shown below is included:

Standard components

The following items should be included with your shipment:

 PCI-QUAD-AC5 board

Chapter 2

Software

The Measurement Computing Data Acquisition Software CD contains the following software:

 InstaCal installation, calibration, and test utility
 TracerDAQ suite of virtual instruments
 SoftWIRE for VS .NET
 SoftWIRE MCC DAQ Components for .NET

Documentation

). Please read this booklet completely

2-1

PCI-QUAD-AC5 User's Guide Installing the PCI-QUAD-AC5

Optional components

You can also order the following MCC products to use with your PCI-QUAD-AC5.

Cables

C50FE-x

C50FF-x

Signal termination and conditioning accessories

MCC provides signal conditioning and termination products for use with the PCI-QUAD-AC5. Refer to

Field wiring and signal termination

on page 2-6 for a complete list of compatible accessory products.

If any items are missing or damaged, notify Measurement Computing Corp. immediately by phone, fax,
or e-mail:

 Phone: [phone] and follow the instructions for reaching Tech Support.
 Fax: [phone] to the attention of Tech Support
 Email: [e-mail]

Unpacking the board

The PCI-QUAD-AC5 board is shipped in an antistatic container to prevent damage by an electrostatic
discharge. To avoid such damage, perform the following procedure when unpacking and handling your
board.

1.

Before opening the antistatic container, ground yourself with a wrist-grounding strap or by holding
onto a grounded object (such as the computer chassis).

2.

Touch the antistatic container to the computer chassis before removing the board from the container.

3.

Remove the board from the container. Never touch the exposed pins or circuit connections on the
board.

If your board is damaged, notify Measurement Computing Corporation immediately by phone, fax, or
e-mail. For international customers, contact your local distributor where you purchased the board.

 Phone: [phone] and follow the instructions for reaching Tech Support.
 Fax: [phone] to the attention of Tech Support
 Email: [e-mail]

2-2

PCI-QUAD-AC5 User's Guide Installing the PCI-QUAD-AC5

Installing the software

Install the software included with your board before you install the hardware. Installing the software first
ensures that the information required for proper board detection is installed and available at boot up.

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing
Data Acquisition Software CD. This booklet is shipped with the hardware, and is also available in PDF at

Installing the hardware

The PCI-QUAD-AC5 board is completely plug-and-play. There are no switches or jumpers to set on the
board. Configuration is controlled by your system's BIOS. To install your board, follow the steps below.

Install the MCC DAQ software before you install your board

The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to
install this software before you install your board. Follow the directions for installing this software in the
Quick Start Guide that shipped with your board.

1.

Turn your computer off, open it up, and insert your board into an available PCI slot.

2.

Close your computer and turn it on.

If you are using an operating system with support for plug-and-play (such as Windows 2000 or
Windows XP), a dialog box pops up as the system loads indicating that new hardware has been
detected. If the information file for this board is not already loaded onto your PC, you will be
prompted for the disk containing this file. The MCC DAQ software contains this file. If required,
insert the Measurement Computing Data Acquisition Software CD and click

3.

To test your installation and configure your board, run the InstaCal utility installed in the previous
section. Refer to the Quick Start Guide that came with your board for information on how to initially
set up and load InstaCal.

OK.

2-3

PCI-QUAD-AC5 User's Guide Installing the PCI-QUAD-AC5

Connecting the board for I/O operations

Connectors, cables – main I/O connector

Table 2-1

lists the board connectors, applicable cables, and compatible accessory products for the PCI-

QUAD-AC5.

Table 2-1. Board connector, cables, and accessory equipment

Connector type Four, male 50-pin 0.1" spaced double row connectors

Compatible cables C50FE-x cable

C50FF-x cable

Compatible accessory products (with
the C50FE-x cable)

Compatible accessory products (with
the C50FF-x cable)

SSR-PB24 (up to 4, one cable required per PB24 board)

CIO-MINI50 (four)

CIO-SPADE50 (four)

CIO-TERM100 (two)

SCB-50 (two)

The PCI-QUAD-AC5 has four 50-pin header connectors (P1 to P4). If you are connecting to SSR-PB24
racks or equivalent, we recommend using the C50FE-x series cable (see ). Figure 2-2

If you need direct access to the digital I/O, use the C50FF-x series cable to connect four CIO-MINI50
boards, four CIO-SPADE50, two SCB-50 boards, or two CIO-TERM100 terminal accessory boards. Any
of these bring all I/O connections out to convenient, easy-to-use screw terminals.

When installing the ribbon cables, thread them through the bracket on the end of the board.

Information on signal connections

General information regarding signal connection and configuration is available in the Guide to Signal
Connections (available at www.mccdaq.com/signals/signals.pdf).

Pinout – main I/O connectors

The pin out for the four I/O connectors is listed in Fi . gure 2-1

2-4

PCI-QUAD-AC5 User's Guide Installing the PCI-QUAD-AC5

Connector ports/bits

Plug Port Bits

P1 1 to 241st

P2 2nd 25 to 48

P3 3rd 49 to 72

P4 4th 73 to 96

Signal Pin Pin Signal

Port

C Bit 7

Port
Port
Port C 4 7
Port C 3 9
Port C 2 11
Port C 1 13
Port C 0 15
Port B 7 17
Port B 6 19
Port B 5 21
Port B 4 23
Port B 3 25
Port B 2 27
Port B 1 29
Port B 0 31
Port A 7 33
Port A 6 35
Port A 5 37
Port A 4 39
Port A 3 41
Port A 2 43
Port A 1 45
Port A 0 47

Bit

C 6 3

Bit

C 5 5

Bit
Bit
Bit
Bit

Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit

Bit
Bit
Bit
Bit
Bit
Bit
Bit
Bit

1

+5V OUT 49

P1 - P4

2GND
4GND
6GND
8GND
10 GND
12 GND
14 GND
16 GND
18 GND
20 GND
22 GND
24 GND
26 GND
28 GND
30 GND
32 GND
34 GND
36 GND
38 GND
40 GND
42 GND
44 GND
46 GND
48 GND
50 GND

SECONDPORT

SSR-PB24

FIRSTPORT

Figure 2-2. PCI-QUAD-AC5 to SSR-PB24 relay racks

Figure 2-1. I/O connector pin-out

PCI-QUAD-AC5

FOURTHPORT

IN

IN

SSR-PB24

2-5

C50FE-x or
C50FF-x for
term. boards

IN

SSR-PB24

THIRDPORT

IN

SSR-PB24

PCI-QUAD-AC5 User's Guide Installing the PCI-QUAD-AC5

Field wiring and signal termination

You can use the following screw terminal boards to terminate field signals and route them into the PCI­QUAD-AC5 using the C50FF-x cable.

 CIO-MINI50 – 50-pin universal screw terminal board. Four boards are required. Details on this

product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=258

 CIO-SPADE50 — 16" x 4" termination panel which mates with both 37-pin and 50-pin connectors.

Four boards are required. Details on this product are available on our web site at

www.mccdaq.com/pdfs/screw.pdf

.

 CIO-TERM100 – 100-pin screw terminal board (daisy-chained 50-pin IDC connectors). Two boards

are required. Details on this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=281

 SCB-50 – 50 conductor, shielded signal connection/screw terminal box provides two independent

50-pin connections. Two boards are required. Details on this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=196&pf_id=1168

You can use the following relay mounting rack with the C50FE-x cable to provide digital signal
conditioning.

 SSR-PB24 – 24 channel solid-state relay mounting and interface rack. Details on this product are

available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=619
The PCI-QUAD-AC5 supports up to four SSR-PB24 boards (one cable required per SSR-PB24).

.

.

.

.

2-6

Chapter 3

Programming and Developing Applications

After following the installation instructions in Chapter 2, your board should now be installed and ready
for use. In general there may be no correspondence among registers for different boards. Software written
at the register level for other models will not function correctly with your board.

Programming languages

Packaged applications programs

Many packaged application programs, such as SoftWIRE, Labtech Notebook™, and HP-VEE™, now
have drivers for your board. If the package you own does not have drivers for the board, please fax or e­mail the package name and the revision number from the install disks. We will research the package for
you and advise how to obtain drivers.

).

Some application drivers are included with the Universal Library package, but not with the application
package. If you have purchased an application package directly from the software vendor, you may need
to purchase our Universal Library and drivers. Please contact us by phone, fax or e-mail:

 Phone: [phone] and follow the instructions for reaching Tech Support.
 Fax: [phone] to the attention of Tech Support
 Email: [e-mail]

Register-level programming

You should use the Universal Library or one of the packaged application programs mentioned above to
control your board. Only experienced programmers should try register-level programming.

If you need to program at the register level in your application, refer to the Register Map for the PCI-
QUAD-AC5. This document is available on our website at www.mccdaq.com/registermaps/RegMapPCI-

QUAD-AC5.pdf.

3-1

Chapter 4

Functional Details

Signal connections

All digital inputs and outputs on the PCI-QUAD-AC5 connector are TTL and are fully compatible with
the inputs and outputs on the industry-standard PB-24 rack (Measurement Computing Corporation's
model SSR-PB24).

82C55 emulation

The PCI-QUAD-AC5 board emulates the 82C55 chip. The 82C55 emulation initializes all ports as inputs
on power-up and reset. A TTL input is a high impedance input. If you connect another TTL input device
to the output, it could be turned on or off every time the board is reset.

To establish a consistent TTL level at power-up, use resistors tied to either +5V (pull-up) or ground
(pull-down). There are open locations for pull-up and pull-down resistor SIPs on the board.

When an 82C55 emulation is powered on or reset, all pins are set to high-impedance input. Based on
standard TTL functionality, these inputs will typically float high, and may have enough drive current to
turn on external devices.

Consequently, if you have output devices such as solid state relays, they may be switched on whenever
the computer is powered on or reset. To prevent unwanted switching, and to drive all outputs to a known
state after power on or reset, pull all pins either high or low through a 2.2 K ohm resistor.

Pull-up and pull-down resistors

TTL inputs typically float high, but not reliably. The direction they float is dependent on the
characteristics of the circuit and is unpredictable. If devices such as solid state relays are driven by digital
I/O pins, they can be switched on whenever the computer is powered on or is reset. To prevent unwanted
switching at power-on or reset, force all digital I/O pins to a known state by pulling all pins either high or
low through a 2.2 K ohm resistor tied to either 5V or GND.

The pull-up resistor pulls the input to a high state (+5V) when the board is in input mode, as it would be
on power-up or reset. A 2.2 K ohm resistor draws only 2 mA. A grounded 2.2 K ohm pull-down resistor
pulls the I/O line low when the board is in input mode.

The SIP is made up of eight 2.2 K ohm resistors. One side of each resistor is connected to a single
common point and brought out to a pin. The common line is marked with a dot or line at one end of the
SIP. The remaining resistor ends are brought out to the other eight pins (refer to ). Figure 4-3

2.2 KOhm SIP

Dot

(LO or HI)

I/O Lines

Figure 4-3. Eight-Resistor SIP Schematic

4-1

PCI-QUAD-AC5 User's Guide Functional Details

(3 p

The PCI-QUAD-AC5 board has open locations where you can install a 2.2 K ohm, eight-resistor single
inline package (SIP) resistor network for each port. Each of the four port locations is identified by the bit
range — the First Port connector (P1) is labeled
Bits 25 to 48, the Third Port connector (P3) is labeled
is labeled

Bits 73 to 96. Pull-up/pull-down SIP locations (3 per port) are labeled A, B and C, and are

Bits 1 to 24, the Second Port connector (P2) is labeled

Bits 49 to 72, and the Fourth Port connector (P4)

adjacent to each port. Refer to Figure 4-4.

First Port Fourth Port

Third Port Second Port

SIP locations
A, B, C

er port)

Figure 4-4. PCI-QUAD-AC5 layout and SIP locations

When installed, the SIP establishes either a high or low logic level at each of the eight
I/O lines on the port. At each board location, A, B, and C, there are 10 holes in a line. The hole on one
end is marked "HI" and is connected to +5V. The other end is marked "LO" and is connected to GND.
The eight holes in the middle connect to the eight lines of the port, A, B or C.

To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the
resistor with the common pin in the LO end.

Figure 4-5

shows a schematic of an SIP installed in both the pull-up and pull-down positions.

+5 VDC

HI

n7

n6

n5

Digital

I/O Port

n = A, B, or C

n4

n3

n2

n1

n0

LO

(GND)

2.2 K SIP installed for pull-up

2.2 K SIP

COM

Dot indicates the
common line

User Connector

Digital I/O Lines

n = A, B, or C

+5 VDC

2.2 K SIP

HI

n7

n6

Digital

I/O Port

n5

n4

n3

n2

n1

n0

LO
(GND)

2.2 K SIP installed for pull-down

COM

User Connector

Digital I/O Lines

Dot indicates the
common line

Figure 4-5. Pull-up and pull-down resistor SIP schematic

We recommend using 2.2KΩ SIPs (MCC part number SP-K2.29C). Use a different value only if
necessary.

4-2

PCI-QUAD-AC5 User's Guide Functional Details

Unconnected inputs float

Unconnected inputs typically float high, but not reliably. If you are using a PCI-QUAD-AC5 board for
input and have unconnected inputs, ignore the data from those lines. You do not have to terminate input
lines, and unconnected lines will not affect the performance of connected lines. Ensure that you mask out
any unconnected bits in software.

TTL to solid state relays

Many applications require digital outputs to switch AC and DC voltage motors on and off or to monitor
AC and high DC voltages. These AC and high DC voltages cannot be controlled or read directly by the
TTL digital lines of a PCI-QUAD-AC5.

Solid State Relays (SSRs) allow control and monitoring of AC and high DC voltages and provide 750 V
isolation. SSRs are the recommended method of interfacing to AC and high DC signals.

The most convenient way to use solid state relays and a PCI-QUAD-AC5 board is to purchase a Solid
State Relay Rack. The rack recommended for use with the PCI-QUAD-AC5 board is the SSR-PB24 from
Measurement Computing Corporation.

4-3

Specifications

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Power consumption

+5V 2.4 A typical, 3.6 A max

Digital input / output

Digital type Digital Outputs - 74S244

Digital Inputs - 74LS373

Number of I/O 96

Configuration per 82C55A Mode 0
emulation

Input low voltage 0.8 V max.

Input high voltage 2.0 V min.

Output low voltage 0.5 V max. (Iol = 64 mA)

Output high voltage 2.4 V min. (Ioh = -15 mA)

High level output current -15 mA max.

Low level output current 64 mA max.

Absolute maximum input voltage 7.0 V max.

Pull-up/pull-down resistors Locations provided for user installation of pull-up or pull-down

Power on / reset High impedance

 2 banks of 8 bits and 2 banks of 4
 Each bank programmable as either input or output

resistors.

Chapter 5

Environmental

Operating temperature range 0 to 70 °C

Storage temperature range -40 to 70 °C

Humidity 0 to 95% non-condensing

Mechanical

Card dimensions PCI long card: 312 mm long x 107 mm high x 18.5 mm thick

Main connector and pin out

Connector type Four, male 50-pin 0.1" spaced double row connectors

Compatible cables C50FE-x cable

C50FF-x cable

Compatible accessory products (with the
C50FE-x cable)

Compatible accessory products (with the
C50FF-x cable)

SSR-PB24 (up to 4, one cable required per PB24 board)

CIO-MINI50 (four)

CIO-SPADE50 (four)

CIO-TERM100 (two)

SCB-50 (two)

5-1

PCI-QUAD-AC5 User's Guide Specifications

P1

Pin Signal Name Pin Signal Name

1 FIRST PORT C Bit 7 2 GND
3 FIRST PORT C Bit 6 4 GND
5 FIRST PORT C Bit 5 6 GND
7 FIRST PORT C Bit 4 8 GND
9 FIRST PORT C Bit 3 10 GND
11 FIRST PORT C Bit 2 12 GND
13 FIRST PORT C Bit 1 14 GND
15 FIRST PORT C Bit 0 16 GND
17 FIRST PORT B Bit 7 18 GND
19 FIRST PORT B Bit 6 20 GND
21 FIRST PORT B Bit 5 22 GND
23 FIRST PORT B Bit 4 24 GND
25 FIRST PORT B Bit 3 26 GND
27 FIRST PORT B Bit 2 28 GND
29 FIRST PORT B Bit 1 20 GND
31 FIRST PORT B Bit 0 32 GND
33 FIRST PORT A Bit 7 34 GND
35 FIRST PORT A Bit 6 36 GND
37 FIRST PORT A Bit 5 38 GND
39 FIRST PORT A Bit 4 40 GND
41 FIRST PORT A Bit 3 42 GND
43 FIRST PORT A Bit 2 44 GND
45 FIRST PORT A Bit 1 46 GND
47 FIRST PORT A Bit 0 48 GND
49 +5V Out 50 GND

P2

Pin Signal Name Pin Signal Name

1 SECOND PORT C Bit 7 2 GND
3 SECOND PORT C Bit 6 4 GND
5 SECOND PORT C Bit 5 6 GND
7 SECOND PORT C Bit 4 8 GND
9 SECOND PORT C Bit 3 10 GND
11 SECOND PORT C Bit 2 12 GND
13 SECOND PORT C Bit 1 14 GND
15 SECOND PORT C Bit 0 16 GND
17 SECOND PORT B Bit 7 18 GND
19 SECOND PORT B Bit 6 20 GND
21 SECOND PORT B Bit 5 22 GND
23 SECOND PORT B Bit 4 24 GND
25 SECOND PORT B Bit 3 26 GND
27 SECOND PORT B Bit 2 28 GND
29 SECOND PORT B Bit 1 20 GND
31 SECOND PORT B Bit 0 32 GND
33 SECOND PORT A Bit 7 34 GND
35 SECOND PORT A Bit 6 36 GND
37 SECOND PORT A Bit 5 38 GND
39 SECOND PORT A Bit 4 40 GND
41 SECOND PORT A Bit 3 42 GND
43 SECOND PORT A Bit 2 44 GND
45 SECOND PORT A Bit 1 46 GND
47 SECOND PORT A Bit 0 48 GND
49 +5V Out 50 GND

5-2

PCI-QUAD-AC5 User's Guide Specifications

P3

Pin Signal Name Pin Signal Name

1 THIRD PORT C Bit 7 2 GND
3 THIRD PORT C Bit 6 4 GND
5 THIRD PORT C Bit 5 6 GND
7 THIRD PORT C Bit 4 8 GND
9 THIRD PORT C Bit 3 10 GND
11 THIRD PORT C Bit 2 12 GND
13 THIRD PORT C Bit 1 14 GND
15 THIRD PORT C Bit 0 16 GND
17 THIRD PORT B Bit 7 18 GND
19 THIRD PORT B Bit 6 20 GND
21 THIRD PORT B Bit 5 22 GND
23 THIRD PORT B Bit 4 24 GND
25 THIRD PORT B Bit 3 26 GND
27 THIRD PORT B Bit 2 28 GND
29 THIRD PORT B Bit 1 20 GND
31 THIRD PORT B Bit 0 32 GND
33 THIRD PORT A Bit 7 34 GND
35 THIRD PORT A Bit 6 36 GND
37 THIRD PORT A Bit 5 38 GND
39 THIRD PORT A Bit 4 40 GND
41 THIRD PORT A Bit 3 42 GND
43 THIRD PORT A Bit 2 44 GND
45 THIRD PORT A Bit 1 46 GND
47 THIRD PORT A Bit 0 48 GND
49 +5V Out 50 GND

P4

Pin Signal Name Pin Signal Name

1 FOURTH PORT C Bit 7 2 GND
3 FOURTH PORT C Bit 6 4 GND
5 FOURTH PORT C Bit 5 6 GND
7 FOURTH PORT C Bit 4 8 GND
9 FOURTH PORT C Bit 3 10 GND
11 FOURTH PORT C Bit 2 12 GND
13 FOURTH PORT C Bit 1 14 GND
15 FOURTH PORT C Bit 0 16 GND
17 FOURTH PORT B Bit 7 18 GND
19 FOURTH PORT B Bit 6 20 GND
21 FOURTH PORT B Bit 5 22 GND
23 FOURTH PORT B Bit 4 24 GND
25 FOURTH PORT B Bit 3 26 GND
27 FOURTH PORT B Bit 2 28 GND
29 FOURTH PORT B Bit 1 20 GND
31 FOURTH PORT B Bit 0 32 GND
33 FOURTH PORT A Bit 7 34 GND
35 FOURTH PORT A Bit 6 36 GND
37 FOURTH PORT A Bit 5 38 GND
39 FOURTH PORT A Bit 4 40 GND
41 FOURTH PORT A Bit 3 42 GND
43 FOURTH PORT A Bit 2 44 GND
45 FOURTH PORT A Bit 1 46 GND
47 FOURTH PORT A Bit 0 48 GND
49 +5V Out 50 GND

5-3

EC Declaration of Conformity

We, Measurement Computing Corporation, declare under sole responsibility that the product

PCI-QUAD-AC5

Part Number

to which this declaration relates, meets the essential requirements, is in conformity with, and CE marking
has been applied according to the relevant EC Directives listed below using the relevant section of the
following EC standards and other informative documents:

 EU EMC Directive 89/336/EEC: Essential requirements relating to electromagnetic compatibility.
 EN 55022 Class B (1995): Radiated and conducted emission requirements for information

technology equipment.

 EN50082-1 (1997): EC generic immunity requirements.
 EN 61000-4-2 (1995): Electrostatic discharge immunity.
 EN 61000-4-3 (1997) ENV 50204 (1996): RF immunity.
 EN 61000-4-4 (1995): Electric fast transient burst immunity.

Carl Haapaoja, Vice-President of Design Verification

96-bit, high drive digital I/O board with AC5 and PB24 interface

Description

Measurement Computing Corporation

16 Commerce Boulevard,

Middleboro, Massachusetts 02346

[phone]

Fax: [phone]

E-mail: [e-mail]

www.mccdaq.com