Measurement Computing USB-PDISO8/40 User manual

USB-PDISO8/40
USB-based Isolated Input and Relay Output
June 2021. Rev 7
© Measurement Computing Corporation
User's Guide

2
USB-PDISO8/40
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of Measurement Computing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company names mentioned herein are trademarks or trade names of their respective
companies.
© 2021 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 prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, 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.

3
Table of Contents
Preface
About this User's Guide ..................................................................................................................... 4
What you will learn from this user's guide ..................................................................................................... 4
Conventions in this user's guide..................................................................................................................... 4
Where to find more information..................................................................................................................... 4
Chapter 1
Introducing the USB-PDISO8/40 ........................................................................................................ 5
Functional block diagram .............................................................................................................................. 5
Chapter 2
Installing the USB-PDISO8/40 ............................................................................................................ 6
Unpacking ..................................................................................................................................................... 6
Installing the software.................................................................................................................................... 6
Connecting the external power supply ........................................................................................................... 6
Installing the hardware .................................................................................................................................. 6
Chapter 3
Functional Details ............................................................................................................................... 8
Components .................................................................................................................................................. 8
USB IN connector ...................................................................................................................................................................8
USB OUT connector...............................................................................................................................................................8
POWER IN connector.............................................................................................................................................................9
POWER OUT connector.........................................................................................................................................................9
USB LED.................................................................................................................................................................................9
PWR LED................................................................................................................................................................................9
Signal I/O connector...................................................................................................................................... 9
Relay contacts........................................................................................................................................................................10
Differential isolated digital inputs ........................................................................................................................................10
Cabling...................................................................................................................................................................................12
Field wiring and signal termination accessories ..................................................................................................................12
Daisy chaining additional devices to the USB-PDISO8/40........................................................................... 13
Power limitations using multiple USB-PDISO8/40 devices ......................................................................... 13
Supply current .......................................................................................................................................................................13
Voltage drop ..........................................................................................................................................................................14
Relay contact protection circuit for inductive loads ............................................................................................................14
Chapter 4
Specifications.................................................................................................................................... 15
Relay specifications..................................................................................................................................... 15
Isolated inputs ............................................................................................................................................. 15
Power .......................................................................................................................................................... 16
External power output.................................................................................................................................. 16
USB specifications ...................................................................................................................................... 16
Mechanical .................................................................................................................................................. 17
Environmental ............................................................................................................................................. 17
Main connector............................................................................................................................................ 17
P14 .........................................................................................................................................................................................18
Declaration of Conformity................................................................................................................ 19
Declaration of Conformity, Legacy Hardware ................................................................................ 20

4
Preface
About this User's Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing USB-PDISO8/40 data acquisition device and lists
device specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
Bold text is used for the names of objects on a screen, such as buttons, text boxes, and checkboxes.
Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more information
Additional information about USB-PDISO8/40 hardware is available on our website at www.mccdaq.com. You
can also contact Measurement Computing Corporation with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: [email protected]
Phone: [phone] and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at www.mccdaq.com/International.

5
Chapter 1
Introducing the USB-PDISO8/40
The USB-PDISO8/40 is a USB 2.0 full-speed device that provides the following features:
Eight single pole double throw (SPDT) Form C relay outputs that provide 6 A outputs at 240 VAC or 28
VDC.
Eight isolated high voltage digital inputs that can monitor up to 30 V AC or DC inputs
An optional input filter available on each isolated input (input filters are enabled and disabled by software)
A 40-pin connector for field wiring connections
USB out and power out connections support powering and controlling multiple MCC USB devices from
one external power source and one USB port in a daisy-chain configuration.*
Rugged enclosure that you can mount on a DIN rail or on a bench
The USB-PDISO8/40 is powered by an external 9 V, 1.67 A regulated power supply that is shipped with the
device.
Functional block diagram
USB-PDISO8/40 functions are illustrated in the block diagram shown here.
Figure 1. USB-PDISO8/40 functional block diagram
* Depending on your load requirements, daisy-chained devices may require a separate power supply.

6
Chapter 2
Installing the USB-PDISO8/40
Unpacking
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the device 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.
Contact us immediately if any components are missing or damaged.
Installing the software
Refer to the MCC DAQ Quick Start and the USB-PDISO8/40 product page on our website for information
about the software supported by the USB-PDISO8/40.
Install the software before you install your device
The driver needed to run the USB-PDISO8/40 is installed with the software. Therefore, you need to install the
software package you plan to use before you install the hardware.
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 MCC USB device, make sure that you provide adequate power to each
device. Refer to Power limitations using multiple USB-PDISO8/40 devices on page 13.
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 Figure 2 on page 8 for
the location of this connector.
The green PWR LED lights 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 MCC USB device. 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 light.
Installing the hardware
Connect the USB-PDISO8/40 using the cable provided to a USB port on a computer running Windows.
Windows finds and installs the device driver automatically, and notifies you that the device is ready to use.
The USB LED turns on after the device is successfully installed.
You can connect up to four compatible MCC USB products in a daisy-chain configuration to a USB port on
your computer.
If the USB LED turns off
If communication is lost between the device and the computer, the USB LED turns off. To restore
communication, disconnect the USB cable from the computer and then reconnect it. This should restore
communication, and the USB LED should turn on.

USB-PDISO8/40 User's Guide Installing the USB-PDISO8/40
7
If your system does not detect the USB-PDISO8/40
If a USB device not recognized message displays when you connect the USB-PDISO8/40, complete the
following steps:
1. Unplug the USB cable from the USB-PDISO8/40.
2. Unplug the external power cord from the POWER IN connector on the enclosure.
3. Plug the external power cord back into the POWER IN connector.
4. Plug the USB cable back into the USB-PDISO8/40.
Your system should now properly detect the USB-PDISO8/40.
Contact technical support if your system still does not detect the USB-PDISO8/40.

8
Chapter 3
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 (see Main connector and pin out on page 9).
Components
The USB-PDISO8/40 has the following internal components, as shown in Figure 2.
Two USB connectors
Two external power connectors
USB LED
PWR LED
40-pin I/O connector
Figure 2. USB-PDISO8/40 components
1
USB output connector (USB OUT)
5
Relays
2
USB input connector (USB IN)
6 40-pin connector
3
Power output connector (POWER OUT 9 VDC)
7
USB LED
4
Power input connector (POWER IN)
8
PWR LED
USB IN connector
The USB in connector is labeled USB IN on the board and enclosure. This connector is a USB 2.0 full-speed
input connector that you connect to the USB port on your computer (or USB hub connected to your computer).
This connector supports USB 1.1 and USB 2.0 devices.
Hardware revision C and later are also compatible with USB 3.0. The board revision may be determined from
the part number label on the enclosure that states "197242X-01," where X is the board revision.
USB OUT connector
The USB OUT connector is a downstream hub output port intended for use with other MCC USB products only.
The USB hub is self-powered, and can provide 100 mA maximum current at 5 V.
For information on daisy chaining to other MCC USB devices, refer to Daisy chaining additional devices to the
USB-PDISO8/40 on page 13.

USB-PDISO8/40 User's Guide Functional Details
9
POWER IN connector
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.
To supply external power, connect the POWER IN connector to the supplied +9 V external power supply
(CB-PWR-9).
The USB specification allows high-power devices to draw up to 725 mA. When all eight relays are energized,
the combined current draw exceeds the maximum allowed for high-power USB devices. Therefore, external
power is required.
POWER OUT connector
Use the POWER OUT connector to provide power to additional daisy chained MCC USB devices from a single
external power supply. A user-supplied custom cable is required to daisy chain multiple devices.
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. The following table explains the function of the USB LED.
USB LED Indications
USB LED Indication
On steadily
The USB-PDISO8/40 is connected to a computer or external USB hub.
Blinking
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 onboard voltage supervisory circuit that monitors the USB VBUS (5 V)
and the external 9 V power supply. If the input voltage falls outside of the specified ranges the PWR LED shuts
off (see the following table).
PWR LED Indications
PWR LED Indication
On
USB +5 V power or +9 V external power is supplied to the USB-PDISO8/40.
Off
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:
USB VBUS (+5 V): 4.75 V to 5.25 V

External power: (+9 V): 6.5 V to 12.5 V
Signal I/O connector
The table below lists the device connectors, applicable cables, and compatible accessory boards.
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
using the C40FF-x cable
CIO-MINI40
Compatible accessory products
using the C40-37F-x cable
CIO-MINI37
SCB-37

USB-PDISO8/40 User's Guide Functional Details
10
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
Relay contacts
Connect external devices to the relay contacts using the 40-pin connector on the USB-PDISO8/40. Each relay
has a normally closed (NC), common (C), and normally open (NO) contact.
Form C relay output
A schematic for Form C relay contacts is shown in Figure 3. The Form C relay has a C, NO, and NC contact.
When a (0) is written to the output bit, the C and NC are in contact.
When a (1) is written to the output bit, the C and NO are in contact.
Figure 3. Form C SPDT relay
Differential isolated digital inputs
Connect up to eight isolated digital input signals using the 40-pin connector:
Input 0 terminal A and input 0 terminal B
Input 1 terminal A and input 1 terminal B
Input 2 terminal A and input 2 terminal B
Input 3 terminal A and input 3 terminal B
Input 4 terminal A and input 4 terminal B
Input 5 terminal A and input 5 terminal B
Input 6 terminal A and input 6 terminal B
Input 7 terminal A and input 7 terminal B
A schematic of a single channel is shown in Figure 6. Each signal is applied to a bridge rectifier so that the
input is not polarity-sensitive. Each input channel can be driven by either AC (50 - 1000 Hz) or DC voltage.

USB-PDISO8/40 User's Guide Functional Details
11
The optically isolated (500 V) inputs can be read back as a single byte. Each input has a software-selectable
filter with a time constant of 5 ms (200 Hz). The filter is required for AC inputs, and recommended for almost
all DC inputs. Unless you have a good reason to turn off a filter, MCC recommends that you enable it.
You can enable and disable (default) each input filter by selecting the device and then selecting
Install»Configure in InstaCal.
Figure 4. USB-PDISO8/40 single-channel configuration
Figure 5 shows a schematic of a simple connection from a +9 V battery to the relay 4 connector pins. When the
relay is energized, relay 4 NO connects the battery voltage to input 4 terminal B.
Figure 5. Schematic of battery-to-relay connection
Figure 6. USB-PDISO8/40 single-channel configuration

USB-PDISO8/40 User's Guide Functional Details
12
Cabling
For signal connections and termination, you can use the CIO-MINI40 screw terminal board and C40FF-x cable.
Figure 7. C40FF-x cable
For connections to 37-pin connectors or boards, you can use the C40-37F-x or C40F-37M-x cable.
Figure 8. C40-37F-x cable
Figure 9. C40-37M-x cable
Field wiring and signal termination accessories
Use the following screw terminal boards to terminate field signals and route them into the
USB-PDISO8/40 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.

USB-PDISO8/40 User's Guide Functional Details
13
Daisy chaining additional devices to the USB-PDISO8/40
Daisy-chained USB-PDISO8/40 devices connect to the USB bus through the high-speed hub on the USB-
PDISO8/40. You can daisy chain up to four MCC USB devices that support daisy-chain configurations to a
single USB 2.0 port or USB 1.1 port on your computer.
Use the supplied cable or an equivalent full-speed cable when daisy chaining to other MCC USB devices.
The device already connected to the computer is referred to as the host device.
The additional device(s) that you want to daisy chain to the host USB-PDISO8/40 is referred to as the slave
device.
This procedure assumes you already have a host device connected to a computer and to an external power
source.
To daisy chain MCC USB devices, complete the following steps below.
1. Connect the POWER OUT connector on the host device to the POWER IN connector on the slave device.
This step is required only if you plan to daisy chain power to another device.
2. Connect the USB OUT connector on the host device to the USB IN connector on the slave device.
3. To add another device, repeat steps 1-2 by connecting the slave device to another slave device.
A daisy chain example is shown in Figure 10. Note that the last board in the chain is supplied with external
power.
Figure 10. USB-PDISO8/40 daisy-chain connections (configuration not near full power load)
Power limitations using multiple USB-PDISO8/40 devices
When daisy chaining additional MCC USB products to the USB-PDISO8/40, make sure that you provide
adequate power to each device that you connect. The USB-PDISO8/40 is powered with a 9 VDC nominal,
1.67 A external power supply.
When connecting multiple devices, power supplies with higher current capability – such as the CB PWR-9V3A
– are available from MCC.
Supply current
Running one USB-PDISO8/40 with all relays on draws 820 mA from the 1.67 A supply. When using the
USB-PDISO8/40 under full load conditions, you cannot daisy chain additional MCC USB products unless you
supply external power to each device in the chain.
If you are not sure how much current your application requires, we recommend that you provide separate power
to each MCC USB product that you connect.

USB-PDISO8/40 User's Guide Functional Details
14
Voltage drop
A drop in voltage occurs with each device connected in a daisy chain system. The voltage drop between the
device 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 device in the chain.
Always provide a separate power supply when the USB-PDISO8/40 is the last device in the chain.
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 Figure 11. For AC loads, install a metal oxide varistor (MOV).
Figure 11. Relay contact protection circuit

15
Chapter 4
Specifications
All specifications are subject to change without notice.
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 A @ 240 VAC or 28 VDC resistive (see Main connector on page 17)
Contact resistance
100 mΩ max
Operate time
10 ms max
Release time
10 ms max
Vibration
10 Hz to 55 Hz (dual amplitude 1.5 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
Table 2. Isolated input specifications
Number
8
Isolation
500 V
Resistance
1.6 KΩmin
Voltage range
DC
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
AC (with
filter)
Input high: 6.0 Vrms min (50 Hz to 1000 Hz)
Input low: 1.5 Vrms max (50 Hz to 1000 Hz)
Response
Filter disabled
20 µs
Filter enabled
5 ms
Filters
Time constant
5 ms (200 Hz)
Filter control
Software-selectable for each input.
Power-up
/reset
Filters disabled

USB-PDISO8/40 User's Guide Specifications
16
Power
Table 3. Power specifications
Parameter Conditions Specification
USB +5 V input voltage range.
4.75 V to 5.25 V
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 @ 1.67 A
Voltage supervisor limits - PWR LED
6.5 V > Vext or Vext > 12.5 V (Note 1)
PWR LED = Off (power fault)
6.5 V ≤Vext < 12.5 V
PWR LED = On
External power consumption
All relays on, 100 mA downstream hub power
820 mA typ, 900 mA max
All relays off, 0 A downstream hub power
200 mA typ, 230 mA max
Note 1: The USB-PDISO8/40 monitors the external +9 V power supply voltage with a voltage supervisory circuit. If
this power supply exceeds its specified limit, the PWR LED turns 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
0.5 V max
Note 2: The daisy chain power output option allows multiple Measurement Computing USB 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 device power supply input and the daisy-chain output is 0.5 V maximum. Users must plan for this
drop to assure the last device in the chain receives at least 6.5 VDC. A user-supplied custom cable is required to
daisy chain multiple devices.
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 (hardware revision C and later are also compatible with USB 3.0;
see Note 3 for information on how to determine the hardware revision)
USB "A" connector
Downstream hub output port
USB hub type
Supports USB 2.0 high-speed, full-speed and low-speed operating points
Self-powered, 100 mA max downstream VBUS capability
Compatible products
MCC USB products with a USB hub output port
USB cable type (upstream and
downstream)
A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND,
min 28 AWG D+/D-)
USB cable length
3 meters max
Note 3: The board revision may be determined from the part number label on the housing that states "197242X-01,"
where X is the board revision.

USB-PDISO8/40 User's Guide Specifications
17
Mechanical
Table 6. Mechanical specifications
Board dimensions (L × W × H)
304.3 × 121.9 × 17.8 mm (12.0 × 4.8 × 0.7 in.)
Enclosure dimensions (L × W × H)
342.9 × 125.7 × 58.9 mm (13.5 × 4.95 × 2.32 in.)
Environmental
Table 7. Environmental specifications
Operating temperature range
0 °C to 70 °C
Storage temperature range
-40 °C to 85 °C
Humidity
0% to 95% non-condensing
Main connector
Table 8. Main connector specifications
Connector type
P14: 40-pin header
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
(using the C40FF-x cable)
CIO-MINI40
Compatible accessory products
(using the C40-37F-x cable)
CIO-MINI37
SCB-37
Max current
1 A

USB-PDISO8/40 User's Guide Specifications
18
P14
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

Declaration of Conformity
According to ISO/IEC 17050-1:2010
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Norton, MA 02766
USA
Product Category: Electrical equipment for measurement, control and laboratory use.
Date and Place of Issue: May 3, 2016, Norton, Massachusetts USA
Test Report Number: EMI4813.07
Measurement Computing Corporation declares under sole responsibility that the product
USB-PDISO8/40, Product Revision C* or later
Complies with the essential requirements of the following applicable European Directives:
Electromagnetic Compatibility (EMC) Directive 2014/30/EU
Low Voltage Directive 2014/35/EU
RoHS Directive 2011/65/EU
Conformity is assessed in accordance to the following standards:
EMC:
Emissions:
EN 61326-1:2013 (IEC 61326-1:2012), Class A
EN 55011: 2009 + A1:2010 (IEC CISPR 11:2009 + A1:2010), Group 1, Class A
Immunity:
EN 61326-1:2013 (IEC 61326-1:2012), Controlled EM Environments
EN 61000-4-2:2008 (IEC 61000-4-2:2008)
EN 61000-4-3 :2010 (IEC61000-4-3:2010)
EN 61000-4-4 :2012 (IEC61000-4-4:2012)
EN 61000-4-5 :2014 (IEC61000-4-5:2014)
EN 61000-4-6 :2013 (IEC61000-4-6:2013)
EN 61000-4-11:2004 (IEC61000-4-11:2004)
Safety:
EN 61010-1 (IEC 61010-1)
Environmental Affairs:
Articles manufactured on or after the Date of Issue of this Declaration of Conformity do not contain any of the
restricted substances in concentrations/applications not permitted by the RoHS Directive.
Carl Haapaoja, Director of Quality Assurance
*The board revision may be determined from the part number label on the board that states "197241X-01L", where X is the
board revision.

Declaration of Conformity, Legacy Hardware
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Norton, MA 02766
USA
Category: Electrical equipment for measurement, control and laboratory use.
Measurement Computing Corporation declares under sole responsibility that the product
USB-PDISO8/40, Product Revisions up to B*
to which this declaration relates is in conformity with the relevant provisions of the following standards or other
documents:
EU EMC Directive 89/336/EEC: Electromagnetic Compatibility, EN 61326 (1997) Amendment 1 (1998)
Emissions: Group 1, Class A
EN 55011 (1990)/CISPR 11: Radiated and Conducted emissions.
Immunity: EN61326, Annex A
IEC 61000-4-2 (1995): Electrostatic Discharge immunity, Criteria C.
IEC 61000-4-3 (1995): Radiated Electromagnetic Field immunity Criteria A.
IEC 61000-4-4 (1995): Electric Fast Transient Burst immunity Criteria B.
IEC 61000-4-5 (1995): Surge immunity Criteria B.
IEC 61000-4-6 (1996): Radio Frequency Common Mode immunity Criteria A.
IEC 61000-4-8 (1994): Power Frequency Magnetic Field immunity Criteria A.
IEC 61000-4-11 (1994): Voltage Dip and Interrupt immunity Criteria A.
Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in
June, 2007. Test records are outlined in Chomerics Test Report # EMI4813.07.
We hereby declare that the equipment specified conforms to the above Directives and Standards.
Carl Haapaoja, Director of Quality Assurance
*The board revision may be determined from the part number label on the board that states "197241X-01L", where X is the
board revision.