Measurement USB-TEMP-AI User Manual

USB-PDISO8/40

USB-based

Isolated Input and Relay Output

User's Guide

Document Revision 3, August, 2006

© Copyright 2006, Measurement Computing Corporation™

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To provide data acquisition hardware and software that will save time and save money.

Simple installations minimize the time between setting up your system and actually making measurements. We offer quick and
simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system.

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workmanship for the life of the product, to the original purchaser, unless otherwise noted. Any products found to be defective in
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information, please refer to the terms and conditions of sale.

Harsh Environment Program: Any Measurement Computing product that is damaged due to misuse, or any reason, may be

eligible for replacement with the same or similar device for 50% of the current list price. I/O boards face some harsh
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this program.

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Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use
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HM USB-PDISO8_40.doc

iii

Table of Contents

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.........................................................................................................................v

Chapter 1

Introducing the USB-PDISO8/40...................................................................................................... 1-1

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

USB-PDISO8/40 block diagram..................................................................................................................... 1-2

Connecting a USB-PDISO8/40 to your computer is easy .............................................................................. 1-2

Chapter 2

Installing the USB-PDISO8/40.......................................................................................................... 2-1

What comes with your USB-PDISO8/40 shipment? ...................................................................................... 2-1

Hardware ....................................................................................................................................................................... 2-1

Additional documentation.............................................................................................................................................. 2-2

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

Unpacking the USB-PDISO8/40.................................................................................................................... 2-2

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

Installing the USB-PDISO8/40....................................................................................................................... 2-2

Connecting the external power supply........................................................................................................................... 2-2

Connecting the USB-PDISO8/40 to your system .......................................................................................................... 2-3

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

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

Pin out – main I/O connector ......................................................................................................................................... 2-4

Cabling........................................................................................................................................................................... 2-4

Field wiring and signal termination accessories............................................................................................................. 2-5

Chapter 3

Functional Details............................................................................................................................. 3-1

Internal components ....................................................................................................................................... 3-1

USB OUT connector...................................................................................................................................................... 3-1

USB IN connector.......................................................................................................................................................... 3-1

External power connectors............................................................................................................................................. 3-2

USB LED....................................................................................................................................................................... 3-2

PWR LED...................................................................................................................................................................... 3-2

Direct current (dc) power connector and +9 V power supply......................................................................... 3-2

Daisy chaining additional modules to the USB-PDISO8/40 ..........................................................................3-3

Power limitations using multiple USB-PDISO8/40 devices........................................................................... 3-3

Supply current................................................................................................................................................................ 3-3

Voltage drop ..................................................................................................................................................................3-4

Relay contact protection circuit for inductive loads....................................................................................................... 3-4

Chapter 4

Specifications.................................................................................................................................... 4-1

Relay specifications........................................................................................................................................ 4-1

Isolated inputs................................................................................................................................................. 4-1

Power.............................................................................................................................................................. 4-2

USB specifications ......................................................................................................................................... 4-2

Mechanical ..................................................................................................................................................... 4-2

Environmental ................................................................................................................................................ 4-3

Main connector and pinout ............................................................................................................................. 4-3

P14................................................................................................................................................................................. 4-3

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 USB-PDISO8/40 so that you get the most out of
its USB-based isolated input/relay output features.

This user's guide also refers you to related documents available on our web site, and to technical support
resources that can also help you get the most out of your USB-PDISO8/40.

Conventions in this user's guide

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.

<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

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

example:

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

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

Where to find more information

The following electronic documents provide information that can help you get the most out of your USB­PDISO8/40.

 MCC's Specifications: USB-PDISO8/40 (the PDF version of the Specifications chapter in this guide) is

available on our web site at www.mccdaq.com/pdfs/USB-PDISO8-40.pdf

 MCC's Quick Start Guide is available on our web site at

www.mccdaq.com/PDFmanuals/DAQ-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

www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf

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

www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf

 MCC's Universal Library for LabVIEW

www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf

.

.

™

User’s Guide is available on our web site at

.

.

.

.

USB-PDISO8/40 User's Guide (this document) is also available on our web site at

www.mccdaq.com/PDFmanuals/USB-PDISO8-40.pdf

.

v

Introducing the USB-PDISO8/40

This user's guide contains all of the information you need to install, configure, and program the USB­PDISO8/40.

Chapter 1

The USB-PDISO8/40 is a USB 1.1 low-speed device that is used for data acquisition and control. The USB­PDISO8/40 is supported under popular Microsoft
both USB 1.1 and USB 2.0 ports.

The USB-PDISO8/40 offers eight single pole double throw (SPDT) Form C relay outputs and eight isolated
high voltage digital inputs. The inputs monitor 24V AC or DC inputs. The relay outputs provide 6 Amp outputs
at 240 VAC or 28 VDC.

You can configure each isolated input with an optional input filter. The input filters are enabled and disabled by
software.

The USB-PDISO8/40 is shown in Figure 1-1. All I/O connections are made to a 40-pin connector.

The USB-PDISO8/40 is powered by an external 9 V, 1 A regulated power supply that is shipped with the
device. The USB-PDISO8/40 is shipped in a rugged enclosure that you can mount on a DIN rail or on a bench.

®

Windows® operating systems, and is fully compatible with

Software features

For information on the features of InstaCal and the other software included with your USB-PDISO8/40, refer to
the Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf

Check www.mccdaq.com/download.htm
under less commonly used operating systems.

for the latest software version or versions of the software supported

1-1

.

USB-PDISO8/40 User's Guide Introducing the USB-PDISO8/40

USB-PDISO8/40 block diagram

USB-PDISO8/40 functions are illustrated in the block diagram shown here.

Differential

isolated inputs

9 V

Control
Registers

Nominal
External
Power

Form C

relay outputs

C

Lo

C

Hi

8

Relay
Driver

40-pin
I/O connector

8

USB

Controller

Power
Monitor

Power
Regulator

Figure 1-1. USB-PDISO8/40 functional block diagram

Connecting a USB-PDISO8/40 to your computer is easy

Installing a data acquisition device has never been easier.

 The USB-PDISO8/40 relies upon the Microsoft Human Interface Device (HID) class drivers. The HID

class drivers ship with every copy of Windows that is designed to work with USB ports. We use the
Microsoft HID because it is a standard, and its performance delivers full control and maximizes data
transfer rates for your USB-PDISO8/40. No third-party device driver is required.

 The USB-PDISO8/40 is plug-and-play. There are no jumpers to position, DIP switches to set, or

interrupts to configure.

 You can connect the USB-PDISO8/40 before or after you install the software, and without powering

down your computer first. When you connect an HID to your system, your computer automatically
detects it and configures the necessary software. You can connect and power multiple HID peripherals
to your system using a USB hub.

 You can connect your system to various devices using a standard four-wire cable. The USB connector

replaces the serial and parallel port connectors with one standardized plug and port combination.

 Data can flow two ways between a computer and peripheral over USB connections.

500 mA
USB 2.0 - compliant
interface

Make sure that you have the latest Windows Updates installed for your USB driver, particularly "XP Hotfix
KB822603."

1-2

Installing the USB-PDISO8/40

What comes with your USB-PDISO8/40 shipment?

As you unpack your USB-PDISO8/40, make sure that the following components are included.

Hardware

 USB-PDISO8/40

Chapter 2

 USB cable (2 meter length)

 External power supply and cord (CB-PWR-9) – 9 volt, 1 amp DC power supply

2-1

USB-PDISO8/40 User's Guide Installing

the USB-PDISO8/40

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf

the software you received with your USB-PDISO8/40 and information regarding installation of that software.
Please read this booklet completely before installing any software or hardware.

). This booklet supplies a brief description of

Optional components

 Cables

C40-37F-x

C40F-37M-2

C40FF-x

Unpacking the USB-PDISO8/40

As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the USB-PDISO8/40 from its packaging, ground yourself using a wrist strap or by
simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify Measurement Computing Corporation 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]

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data
Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-

Quick-Start.pdf.

Installing the USB-PDISO8/40

Before you connect the USB-PDISO8/40 to your computer, connect the external power supply that was shipped
with the device.

You can connect up to four compatible Measurement Computing USB products in a daisy chain configuration
to a single USB 1.1 port or USB 2.0 port on your computer.

Connecting the external power supply

Power to the USB-PDISO8/40 is provided with the +9 V external power supply (CB-PWR-9). You must

connect the external power supply before connecting the USB cable to the USB-PDISO8/40 and your computer.

If you are connecting more than one Measurement Computing USB product, make sure that you provide
adequate power to each device. Refer to the "Power limitations using multiple USB-PDISO8/40 devices"
section on page 3-3.

2-2

USB-PDISO8/40 User's Guide Installing the USB-PDISO8/40

To connect the power supply to your USB-PDISO8/40, connect the external power cord to the power connector
labeled

POWER IN on the USB-PDISO8/40 enclosure (PWR IN on the board). Refer to on page 3-1

Figure 3-1

for the location of this connector.

The

PWR LED illuminates green when +9 V power is supplied to the USB-PDISO8/40. If the voltage supply is

less than +6.5 V or more than +12.5 V, the

PWR LED does not light.

Do not connect external power to the POWER OUT connector

The power connector labeled POWER OUT on the enclosure (PWR OUT on the board) is used to provide power
to an additional Measurement Computing USB product. If you connect the external power supply to the

POWER OUT connector, the USB-PDISO8/40 does not receive power, and the PWR LED does not illuminate.

Connecting the USB-PDISO8/40 to your system

To connect the USB-PDISO8/40 to your system, connect the USB cable to a USB port on your computer or to
an external USB hub that is connected to your computer. The USB cable provides communication to the USB­PDISO8/40.

When you connect the USB-PDISO8/40 for the first time, multiple

Found New Hardware pop up balloons

(Windows XP) or dialogs (other Windows versions) appear as the USB-PDISO8/40 is detected.

If you are running Windows XP and connect the USB-PDISO8/40 to a USB 1.1 port, a balloon displays the
message "

Your USB device can perform faster if you connect to a USB 2.0 port." You can ignore this

message. The USB-PDISO8/40 will function properly when connected to a USB 1.1 port, although USB
bandwidth will be limited.

When installation is complete, the

USB LED should flash and then remain lit. This indicates that

communication is established between the USB-PDISO8/40 and your computer.

If the USB LED turns off

If the USB LED is lit but then turns off, the computer has lost communication with the USB-PDISO8/40. To
restore communication, disconnect the USB cable from the computer, and then reconnect it. This should restore

communication, and the USB LED should turn back on.
Caution! Do not disconnect any device from the USB bus while the computer is communicating with the

USB-PDISO8/40, or you may lose data and/or your ability to communicate with the USB­PDISO8/40.

If your system does not detect the USB-PDISO8/40

If a "

USB device not recognized" message appears when you connect the USB-PDISO8/40, do the following.

1.

Unplug the USB cable from the USB-PDISO8/40.

2.

Unplug the external power cord from the

Plug the external power cord back into the

3.

Plug the USB cable back into the USB-PDISO8/40.

4.

POWER IN connector on the enclosure.

POWER IN connector.

Your system should now properly detect the USB-PDISO8/40 hardware. Contact technical support if your
system still does not detect the USB-PDISO8/40.

2-3

USB-PDISO8/40 User's Guide Installing the USB-PDISO8/40

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 boards.

Table 2-1. Board connectors, cables, accessory equipment

Connector P14: 40-pin ribbon connector

Compatible cables

C40FF-x: 40-conductor ribbon cable, female both ends, x = length in feet.

C40-37F-x: 40-pin IDC to 37-pin female D connector, x = length in feet.

Compatible accessory products

CIO-MINI40
(using the C40FF-x cable)

Compatible accessory products
(using the C40-37F-x cable)

CIO-MINI37

SCB-37

Pin out – main I/O connector

Table 2-2. 40-pin connector pin out (P14)

Signal Name Pin Pin Signal Name

Input 7 terminal A 1 2 Input 7 terminal B
Input 6 terminal A 3 4 Input 6 terminal B
Input 5 terminal A 5 6 Input 5 terminal B
Input 4 terminal A 7 8 Input 4 terminal B
Input 3 terminal A 9 10 Input 3 terminal B
Input 2 terminal A 11 12 Input 2 terminal B
Input 1 terminal A 13 14 Input 1 terminal B

Input 0 terminal A 15 16 Input 0 terminal B
Relay 7 Common contact 17 18 Relay 7 Normally Open contact
Relay 6 Common contact 19 20 Relay 6 Normally Open contact
Relay 5 Common contact 21 22 Relay 5 Normally Open contact

Relay 4 Normally Closed contact 23 24 Relay 4 Common contact

Relay 4 Normally Open contact 25 26 Relay 3 Normally Closed contact

Relay 3 Common contact 27 28 Relay 3 Normally Open contact

Relay 2 Normally Closed contact 29 30 Relay 2 Common contact

Relay 2 Normally Open contact 31 32 Relay 1 Normally Closed contact

Relay 1 Common contact 33 34 Relay 1 Normally Open contact

Relay 0 Normally Closed contact 35 36 Relay 0 Common contact

Relay 0 Normally Open contact 37 38 Relay 7 Normally Closed contact

Relay 5 Normally Closed contact 39 40 Relay 6 Normally Closed contact

•

•

•

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Cabling

For signal connections and termination, you can use the CIO-MINI40 screw terminal board and C40FF-x cable.

The red stripe

2

40

40-pin Female

IDC Connector

1

39

Figure 2-1. C40FF-x cable

identifies pin # 1

2-4

2

40

40-pin Female

IDC Connector

1

39

USB-PDISO8/40 User's Guide Installing the USB-PDISO8/40

For connections to 37-pin connectors or boards, you can use the C40-37F-x or C40F-37M-x cable.

2

40

40-pin Female

IDC Connector

2

40

40-pin Female

IDC Connector

1

39

1

39

The red stripe

identifies pin # 1

Figure 2-2. C40-37F-x cable

The red stripe

identifies pin # 1

1

19

37-pin Female

Dsub Connector

1

19

37-pin Male

Dsub Connector

20

37

20

37

Figure 2-3. C40-37M-x cable

Field wiring and signal termination accessories

You can connect the USB-PDISO8/40 to the following accessory boards using the cables above.

 CIO-MINI40 – 40-pin screw terminal board.
 CIO-MINI37 – 37-pin screw terminal board.

 SCB-37

– 37-conductor, shielded signal connection box.

2-5

N

Functional Details

The USB-PDISO8/40 provides SPDT relay control and isolated inputs in a plug-and-play package. All I/O
connections are made to a 40-pin connector (refer to Table 2-2 on page 2-4 for the signal pin out).

Internal components

The USB-PDISO8/40 has the following internal components, as shown in . Figure 3-1

 Two (2) USB connectors
 Two (2) external power connectors
 USB LED
 PWR LED
 40-pin I/O connector

USB I

USB
OUT

POWER IN

POWER

OUT

Chapter 3

PWR LED

USB LED

40-pin connector

Figure 3-1. USB-PDISO8/40 components

USB OUT connector

The USB OUT connector is a downstream hub output port intended for use with other Measurement Computing
USB products only. The USB hub is self-powered, and can provide 100 mA maximum current at 5 V. The USB
out connector is labeled

USB OUT on the enclosure and on the board.

For information on daisy chaining to other compatible Measurement Computing USB products, refer to "Daisy

chaining additional modules to the USB-PDISO8/40

" on page 3-3.

USB IN connector

Connect the USB IN connector to the USB port on your computer (or USB hub connected to your computer).
The USB in connector is labeled

USB IN on the enclosure and on the board.

3-1

USB-PDISO8/40 User's Guide Functional Details

External power connectors

The USB-PDISO8/40 has two external power connectors labeled POWER IN and POWER OUT on the
enclosure. The
labeled

POWER IN connector is labeled PWR IN on the board, and the POWER OUT connector is

PWR OUT on the board.

To supply external power, connect the

POWER IN connector to the supplied +9 V external power supply (CB-

PWR-9).

The

POWER OUT connector lets you power additional daisy chained Measurement Computing USB products

from a single external power supply. The C-MAPWR-x cable is available from MCC to connect additional

Measurement Computing USB products.

USB LED

The USB LED indicates the communication status of the USB-PDISO8/40. This LED uses up to 5 mA of
current and cannot be disabled. explains the function of the USB LED. Table 3-1

Table 3-1. USB LED illumination

USB LED
illumination

Steady green The USB-PDISO8/40 is connected to a computer or external USB hub.

Blinks continuously

Indication

Initial communication is established between the USB-PDISO8/40 and the computer, or data is
being transferred.

PWR LED

The USB-PDISO8/40 incorporates an on-board voltage supervisory circuit that monitors the external 9 V power
supply. If the input voltage falls outside of the specified ranges the

PWR LED shuts off (see ). Table 3-2

Table 3-2. PWR LED illumination

PWR LED
illumination

Steady green +9 V external power is supplied to the USB-PDISO8/40.

Off

Indication

Input power is not supplied, or a power fault has occurred. A power fault occurs when the input
power falls outside of the specified voltage range:

External power (+9 V): 6.5 V to 12.5 V

Direct current (dc) power connector and +9 V power supply

The USB-PDISO8/40 requires between 6.5 V and 12.5 V of external power. An external power connection is

required to activate the relays and to run tests in InstaCal.

The USB specification allows high power devices to draw up to 500 mA. When all eight relays are energized,
the collective current draw exceeds the maximum allowed for high power USB devices. Therefore, external
power is required.

Use the +9-volt (V) DC power supply cord shipped with the USB-PDISO8/40 to provide external power to this

connector.

3-2

USB-PDISO8/40 User's Guide Functional Details

Daisy chaining additional modules to the USB-PDISO8/40

Daisy chained MCC USB Series products connect to the USB bus through the high-speed hub on the USB­PDISO8/40. You can daisy chain a maximum of four Measurement Computing USB products to a single USB

2.0 port on your computer, or a maximum of two devices to a single USB 1.1 port. Use the supplied cable or an
equivalent cable for daisy chaining to additional MCC USB Series products.

To daisy-chain two or more USB-PDISO8/40 modules, follow the steps below. This procedure assumes you
already have one USB-PDISO8/40 connected to a computer and to the external power source. The USB-

PDISO8/40 already connected to the computer is referred to as the connected module. The USB-PDISO8/40
you want to daisy-chain to the connected module is referred to as the new module.

1.

Connect the

Power OUT connector on the connected module to the POWER IN connector on the new

module.

Connect the

2.

For each additional module you want to add, repeat steps 1-2, with the module you just daisy chained now

3.

USB OUT connector on the connected module to the USB IN connector on the new module.

being the connected module.

An example of a daisy chain system is shown in . Figure 3-2

USB port to
USB I

-

- 9

PWR

CB
power supply
to POWER IN

Figure 3-2. USB-PDISO8/40 daisy-chain connections (configuration not near full power load)

N

POWER OUT
to POWER IN

USB OUT
U

SB

to

IN

POWER OUT
to POWER IN

USB OUT to

IN

USB

Power limitations using multiple USB-PDISO8/40 devices

When daisy chaining additional Measurement Computing USB products to the USB-PDISO8/40, you must
ensure that you provide adequate power to each module that you connect. The USB-PDISO8/40 is powered
with a 9 VDC nominal, 1.0 A external power supply.

When connecting multiple modules, power supplies with higher current capability are available from MCC,
such as the CB PWR-9V3A.

Supply current

Running one USB-PDISO8/40 with all relays "on" draws 820 mA from the 1 A supply. When using the USB­PDISO8/40 under full load conditions, you cannot daisy chain additional Measurement Computing USB
modules unless you supply external power to each module in the chain.

If you are not sure how much current your application requires, we recommend that you provide separate power
to each Measurement Computing USB product that you connect.

3-3

USB-PDISO8/40 User's Guide Functional Details

Voltage drop

A drop in voltage occurs with each module connected in a daisy chain system. The voltage drop between the
module power supply input and the daisy chain output is 0.5 V maximum. Factor in this voltage drop when you
configure a daisy chain system to ensure that at least 6.5 VDC is provided to the last module in the chain.

A daisy chain system in a full-power-load configuration is shown in . Figure 3-3

USB port to
USB IN

PWR

CB
power supp to ly
POWER IN

9

-

-

Figure 3-3. USB-PDISO8/40 daisy-chain connections (configuration requiring full power load)

USB OUT
to USB IN

CB-PWR
power supply to
POWER IN

-

USB OUT

to USB IN

PWR

CB

­power supp to
POWER IN

-

9

l

y

Relay contact protection circuit for inductive loads

When you connect an inductive load to a relay, energy stored in the inductive load can induce a large voltage
surge when you switch the relay. This voltage can severely damage the relay contacts. To limit the voltage
surge across the inductive load in a DC circuit, install a kickback diode across the inductive load. Refer to the
contact protection circuit in F . For AC loads, install a metal oxide varistor (MOV). igure 3-4

Relay

NO

C

NC

+

V

-

Figure 3-4. Relay contact protection circuit

Inductive

Load

3-4

Kickback

Diode

Chapter 4

Specifications

Typical for 25 °C unless otherwise specified.
Specifications in italic text are guaranteed by design.

Relay specifications

Table 1. Relay Output specifications

Number 8
Contact configuration 8 FORM C (SPDT) NO, NC and Common available at connector .

Contact rating 6 amperes (A) @ 240 volts AC (VAC) or 28 volts DC (VDC) resistive (see connector rating

below)

Contact resistance 100 milliohms (mΩ) max

Operate time 10 milliseconds (ms) max
Release time 10 milliseconds max
Vibration 10 to 55 hertz (Hz) (Dual amplitude 1.5 millimeters (mm))
Shock 10 G (11 ms)
Dielectric isolation 500 V (1 minute)
Life expectancy 10 million mechanical operations, min

Power on RESET state Not energized. NC in contact to Common.

Isolated inputs

Number 8

Isolation 500 volts ( V)

Resistance 1.6k ohms (Ω) min.
Voltage range

Filters

DC

AC (with filter)

w/o filter 20 µs Response
w/ filter 5 ms
Time constant 5 ms (200 Hz)
Filter control Software programmable at each input.
Power-up /reset Filters off

Table 2. Isolated input specifications

Input high: +5.0 VDC min or –5.0 VDC min

Input low: +1.5 VDC max. or –1.5 VDC max.

Input range: 30 VDC max

Input high: 6.0 V

Input low: 1.5 V

min (50-1000 Hz)

rms

max (50-1000 Hz)

rms

4-1

USB-PDISO8/40 User's Guide Specifications

Power

Table 3. Power specifications

Parameter Conditions Specification
USB +5 V input voltage range. 4.75 V min. to

5.25 V max.
USB +5 V supply current All modes of operation 10 mA max
External power input 9 V nominal
External power supply (required) MCC p/n CB-PWR-9 9 V ±10% @ 1 A

6.5 V > V

LED

Note 1: The USB-PDISO8/40 monitors the external +9 V power supply voltage with a voltage

6.5 V ≤ V

All relays on, 100 mA downstream hub power 820 mA typ, 900 mA max External power consumption
All relays off, 0 A downstream hub power 200 mA typ, 230 mA max

supervisory circuit. If this power supply exceeds its specified limit, the

or V

ext

ext

> 12.5 V (Note 1) PWR LED = Off (power fault) Voltage supervisor limits - PWR

ext

< 12.5 V PWR LED = On

PWR LED will turn off,

indicating a power fault condition.

External power output

Table 4. External power output specifications

Parameter Conditions Specification
External power output - current range Note 2 4.0 A max.
External power output Voltage drop between power input and daisy

chain power output

Compatible cable(s) for daisy chain C-MAPWR-x x = 2 ,3 or 6 feet

Note 2: The daisy chain power output allows multiple USB Series products with a USB hub output port

to be powered from a single external power source in a daisy chain fashion. The voltage drop
between the module power supply input and the daisy chain output is 0.5 V max. Users must plan
for this drop to assure the last module in the chain will receive at least 6.5 VDC

0.5 V max

USB specifications

Table 5. USB specifications

USB "B" connector Input
USB device type USB 2.0 (full-speed)
Device compatibility USB 1.1, USB 2.0
USB "A" connector Downstream hub output port

Supports USB 2.0 high-speed, full-speed and low-speed operating points USB hub type
Self-powered, 100 mA max downstream VBUS capability

Compatible products MCC USB Series products with a USB hub output port

USB cable type (upstream and
downstream)

USB cable length 3 meters max.

A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND, min 28
AWG D+/D-)

Mechanical

Table 6. Mechanical specifications

Card dimensions

304.3 mm (L) x 121.9 mm (W) x 17.8 mm (H)

12.0" (L) x 4.8" (W) x 0.7" (H)

342.9 mm (L) x 125.7 mm (W) x 58.9 mm (H) Enclosure dimensions

13.5" (L) x 4.95" (W) x 2.32" (H)

4-2

USB-PDISO8/40 User's Guide Specifications

Environmental

Table 7. Environmental specifications

Operating temperature range

0 to 70 °C

Storage temperature range -40 to 85 °C
Humidity 0 to 95% non-condensing

Main connector and pinout

Table 8. Main connector specifications

Connector P14: 40-pin header
Compatible cables

Compatible accessory products
(using the C40FF-x cable)
Compatible accessory products
(using the C40-37F-x cable)
Max current 1 A

P14

C40FF-x: 40-conductor ribbon cable, female both ends, x = length in feet.

C40-37F-x: 40-pin IDC to 37-pin female D connector, x = length in feet.

CIO-MINI40

CIO-MINI37
SCB-37

Pin Signal Name Pin Signal Name

1 Input 7 terminal A 2 Input 7 terminal B
3 Input 6 terminal A 4 Input 6 terminal B
5 Input 5 terminal A 6 Input 5 terminal B
7 Input 4 terminal A 8 Input 4 terminal B
9 Input 3 terminal A 10 Input 3 terminal B
11 Input 2 terminal A 12 Input 2 terminal B
13 Input 1 terminal A 14 Input 1 terminal B
15 Input 0 terminal A 16 Input 0 terminal B
17 Relay 7 Common contact 18 Relay 7 Normally Open contact
19 Relay 6 Common contact 20 Relay 6 Normally Open contact
21 Relay 5 Common contact 22 Relay 5 Normally Open contact
23 Relay 4 Normally Closed contact 24 Relay 4 Common contact
25 Relay 4 Normally Open contact 26 Relay 3 Normally Closed contact
27 Relay 3 Common contact 28 Relay 3 Normally Open contact
29 Relay 2 Normally Closed contact 30 Relay 2 Common contact
31 Relay 2 Normally Open contact 32 Relay 1 Normally Closed contact
33 Relay 1 Common contact 34 Relay 1 Normally Open contact
35 Relay 0 Normally Closed contact 36 Relay 0 Common contact
37 Relay 0 Normally Open contact 38 Relay 7 Normally Closed contact
39 Relay 5 Normally Closed contact 40 Relay 6 Normally Closed contact

4-3

Measurement Computing Corporation

10 Commerce Way

Suite 1008

Norton, Massachusetts 02766

[phone]

Fax: [phone]

E-mail: [e-mail]

www.mccdaq.com