USB-SSR08

USB-based Solid-State 8 I/O Module Interface Device

User's Guide

June 2021. Rev 8© Measurement Computing Corporation

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NoticeMeasurement 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 ininjury. 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 ofpeople.

USB-SSR082

Table of Contents
Preface

About this User's Guide ..................................................................................................................... 5
What you will learn from this user's guide ..................................................................................................... 5
Conventions in this user's guide ..................................................................................................................... 5
Where to find more information..................................................................................................................... 5
Chapter 1

Introducing the USB-SSR08 ............................................................................................................... 6
Compatible SSR modules .............................................................................................................................. 6
Functional block diagram .............................................................................................................................. 7
Chapter 2

Installing the USB-SSR08 ................................................................................................................... 8
Unpacking ..................................................................................................................................................... 8
Installing the software.................................................................................................................................... 8
Installing the hardware .................................................................................................................................. 8

Configuring the hardware switches ........................................................................................................................................ 8Connecting the external power supply ................................................................................................................................. 10
Connecting the USB-SSR08 to your system ........................................................................................................................ 10

Chapter 3

Functional Details ............................................................................................................................. 11
Components ................................................................................................................................................ 11

USB in connector .................................................................................................................................................................. 12
USB out connector ................................................................................................................................................................ 12External power connectors .................................................................................................................................................... 12
USB LED ............................................................................................................................................................................... 12PWR LED .............................................................................................................................................................................. 12
I/O module type switch (S1) ................................................................................................................................................. 13
Control logic polarity switch (S2) ........................................................................................................................................ 13
Relay power-up state switch (S3) ......................................................................................................................................... 13

Main connector and pin out ......................................................................................................................... 13
Module status LEDs .................................................................................................................................... 14
Daisy chaining multiple USB-SSR08 devices .............................................................................................. 14Power limitations using multiple USB-SSR08 devices ................................................................................. 15

Voltage drop .......................................................................................................................................................................... 15

Mechanical drawings ................................................................................................................................... 15
Chapter 4

Specifications.................................................................................................................................... 17
I/O module configuration............................................................................................................................. 17Power .......................................................................................................................................................... 17External power input ................................................................................................................................... 17External power output.................................................................................................................................. 18
USB specifications ...................................................................................................................................... 18
Digital I/O transfer rates .............................................................................................................................. 18
Mechanical .................................................................................................................................................. 18
Environmental ............................................................................................................................................. 19
Main connector ............................................................................................................................................ 19

Screw terminal pinout ........................................................................................................................................................... 19

EU Declaration of Conformity .......................................................................................................... 20
3

USB-SSR08 User's Guide

EU Declaration of Conformity, Legacy Hardware ......................................................................... 21

4

Preface

About this User's Guide
What you will learn from this user's guideThis user's guide describes the Measurement Computing USB-SSR08 data acquisition device and lists device
specifications.

Conventions in this user's guide
For more information
Text presented in a box signifies additional information and helpful hints related to the subject matter you arereading.
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 the USB-SSR08 is available on our website at www.mccdaq.com. You can also
contact Measurement Computing Corporation by phone, fax, or email with specific questions.


Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: techsupport@mccdaq.com
Phone: 508-946-5100 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-SSR08
The USB-SSR08 is a USB 2.0 full-speed device that provides the following features:











Mounting rack for eight solid state relay (SSR) modules (backplane is divided into two groups of four
modules each).
Onboard switch to configure the module type (input or output) for each module group.
The following configurations are supported (you cannot mix input and output modules within a group):
o Four input and four output modules
o Eight input modules
o Eight output modules
Onboard switch to configure the control logic polarity (active high or low) for each module group.
Onboard switch to configure the power-up state for output modules.
Switch settings can be read back with software.
Independent LEDs at each module position to indicate the on/off status of each module.
Eight pairs of screw terminal banks for field wiring connections, with positive (+) and negative (-) relay
contacts brought out to the terminals.
USB out and power out connections support powering and controlling multiple MCC USB devices fromone external power source and one USB port in a daisy-chain configuration. *Rugged enclosure that can mount on a DIN rail or on a bench

The USB-SSR08 is powered by an external 9 V, 1.67 A regulated power supply that is shipped with the device.
The USB-SSR08 is fully compatible with both USB 1.1 and USB 2.0 ports. Revision F and later devices arealso compatible with USB 3.0 ports.

Compatible SSR modules
The USB-SSR08 has locations for eight solid state relay modules. The SSR modules use a standard color
scheme so you can quickly identify what module type is installed. Mounting screw threads are provided for you
to easily install the SSR modules.
MCC offers the following SSR modules that are compatible with the USB-SSR08:

SSR-IAC-05
SSR-IAC-05A

SSR-IDC-05
SSR-IDC-05NP



SSR-OAC-05
SSR-OAC-05A

SSR-ODC-05
SSR-ODC-05A
 SSR-ODC-05R


Details on these SSR modules are available at www.mccdaq.com/products/signal_conditioning.aspx.
Remove the USB-SSR08 from the enclosure to install SSR modules
Remove the USB-SSR08 from the enclosure to access the solid-state relay module mounting positions.

* Depending on your load requirements, daisy chained devices may require a separate power supply.

6

USB-SSR08 User's Guide

Introducing the USB-SSR08

Functional block diagram
USB-SSR08 functions are illustrated in the block diagram shown here.

Figure 1. USB-SSR08 functional block diagram

7

Chapter 2

Installing the USB-SSR08
UnpackingAs 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-SSR08 product page on our website for information about thesoftware supported by the USB-SSR08.
Install the software before you install your device
The driver needed to run the USB-SSR08 is installed with the software. Therefore, you need to install thesoftware package you plan to use before you install the hardware.

Installing the hardware
Before you connect the USB-SSR08 to your computer, connect the external power supply that was shipped withthe device.
You can connect up to four compatible MCC USB Series devices in a daisy chain configuration to a single USB
2.0 port on your computer. If your system has a USB 1.1 port, you can connect up to two MCC USB Series
devices.

Configuring the hardware switches
The USB-SSR08 has three onboard switches that configure the I/O module type, relay logic polarity, and relay
power-up state. Configure these switches before you connect the external power supply to the USB-SSR08.
Factory-configured default settings are listed in the table below. Refer to Figure 6 on page 11 for the location ofeach switch.
Default switch configuration
PCB label

Description

Default setting

IN OUT (S1)NON INVERT INVERT(S2)

Configures the I/O type per module group for input or output.
Configures the relay logic parity per module group for invert or
non-invert logic.
Configures the power-up state of output relays for pull-up or
pull-down.

OUT (output)
NON INVERT(active low)
P/UP (Pull-up)

P/UP P/DN (S3)Each DIP switch configures one module group. The switch labeled CL configures modules 1 through 4, and theswitch labeled CH configures modules 5 through 8.

Figure 2. Typical PCB switch

You can use InstaCal to read the current configuration of each switch.
8

USB-SSR08 User's Guide

Installing the USB-SSR08

Remove from the enclosure to access the onboard switches
To change the configuration of a switch, you must first remove the USB-SSR08 from the enclosure. Turnexternal power off before changing the switch settings
I/O module typeUse switch S1 to configure the type of each module group for input or output. By default, switch S1 is shippedwith all banks configured for output modules, as shown in Figure 3.

Figure 3. I/O module type switch (S1)

You cannot mix input and output modules within a group.
Control logic polarity
Configure switch S2 to set the control logic polarity for each module group for inverted (active high) or noninverted (active low, default) logic. By default, switch S2 is shipped with all banks configured for non-inverted
logic, as shown in Figure 4.

Figure 4. Relay logic switch (S2)For input modules, invert mode returns a "1" when the modules are active. Non-invert mode returns a "0"
when the modules are active.
For output modules, invert mode allows you to write a "1" to activate the module. Non-invert mode allows
you to write a "0" to activate the module.

Relay power-up state
Configure switch S3 to set the state of the output relays at power-up. By default, switch S3 is shipped with allbanks configured for pull-up (modules inactive on power-up), as shown in Figure 5. When switched to
PULL DN (pull-down), modules are active on power-up. Switch settings can be read back via software.

Figure 5. Relay power-up state switch (S3)9USB-SSR08 User's Guide

Installing the USB-SSR08

Connecting the external power supply
Power to the USB-SSR08 is provided with the 9 V external power supply (CB-PWR-9). Connect the external
power supply before connecting the USB connector to the USB-SSR08.
To connect the power supply to your USB-SSR08, complete the following steps:
1.

Connect the external power cord to the power connector labeled POWER IN on the USB-SSR08 enclosure(PWR IN on the PCB).

2.

Plug the AC adapter into a power outlet.

The PWR LED turns on (green) when 9 V power is supplied to the USB-SSR08. If the voltage supply is lessthan 6.0 V or more than 12.5 V, the PWR LED does not turn on.
Do not connect external power to the POWER OUT connector
The power connector labeled POWER OUT on the enclosure (PWR OUT on the PCB) is used to provide power
to an additional MCC USB Series device. If you connect the external power supply to the POWER OUT
connector, the USB-SSR08 does not receive power, and the PWR LED does not turn on.

Connecting the USB-SSR08 to your system
To connect the USB-SSR08 to your system, do the following.
1.

Turn your computer on.

2.

Connect the USB cable to the USB connector labeled USB IN on the USB-SSR08.

3.

Connect the other end of the USB cable to a USB port on your computer or to an external USB hub that isconnected to your computer.

Windows finds and installs the device driver automatically, and notifies you that the device is ready to use.
When installation is complete, the USB LED flashes and then remains lit to indicate communication isestablished between the USB-SSR08 and the computer. Refer to Figure 6 on page 11 for the location of the
USB LED.
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.
If the system does not detect the USB-SSR08
If a USB device not recognized message displays when you connect the USB-SSR08, complete the following
steps:
1.

Unplug the USB cable from the USB-SSR08.

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-SSR08.

Your system should now properly detect the USB-SSR08.
Contact technical support if your system still does not detect the USB-SSR08.
Caution! Do not disconnect any device from the USB bus while the computer is communicating with the
USB-SSR08, or you may lose data and/or your ability to communicate with the USB-SSR08.

10

Chapter 3

Functional Details
Components
The USB-SSR08 has the following internal components, as shown in Figure 6.









Two (2) USB connectors
Two (2) external power connectors
PWR LED
USB LEDI/O module type switch (S1)Control logic polarity switch (S2)Power-up state configuration switch (S3)Screw terminals (eight pairs) and module status LEDs

1
2
3
4
5
6

USB output connector (USB OUT)
Power output connector (POWER OUT 9 VDC)

7

Power-up state configuration switch (S3)

USB input connector (USB IN)

8

I/O module-type switch (S1)9Power input connector (POWER IN)
RelaysRelay screw terminals and module status LEDs

10

USB LEDPWR LED

11

Control logic polarity switch (S2)

Figure 6. USB-SSR08 components

11USB-SSR08 User's Guide

Functional Details

USB in connector
The USB in connector is labeled USB IN on the enclosure and on the PCB. This connector is a USB 2.0 fullspeed input connector that you connect to the USB port on your computer (or USB hub connected to yourcomputer). This connector supports USB 1.1, USB 2.0 devices.

USB out connector
The USB out connector is labeled USB OUT on the enclosure and on the PCB. This connector is a downstream
hub output port intended for use with other MCC USB devices only. The USB hub is self-powered, and canprovide 100 mA maximum current at 5 V. For information on daisy chaining to other MCC USB devices, refer
to Daisy chaining multiple USB-SSR08 devices on page 14.

External power connectors
The USB-SSR08 has two external power connectors labeled POWER IN and POWER OUT on the enclosure.
The POWER IN connector is labeled PWR IN on the PCB, and the POWER OUT connector is labeled PWR OUT
on the PCB.
Connect the POWER IN connector to the supplied +9 V external power supply. External power is required tooperate the USB-SSR08.
Use the POWER OUT connector to power additional daisy-chained MCC USB devices from a single external
power supply. Depending on your load requirements, daisy-chained devices may require a separate power
supply. Refer to Power limitations using multiple USB-SSR08 devices on page 14 for more information.
A user-supplied custom cable is required to daisy chain multiple devices.

USB LED
The USB LED indicates the communication status of the USB-SSR08. This LED uses up to 5 mA of current
and cannot be disabled. The table below explains the function of the USB LED.
USB LED Indications
USB LED

Indication

On steadily
Blinking

The USB-SSR08 is connected to a computer or external USB hub.
Initial communication is established between the USB-SSR08 and the computer, or data is beingtransferred.

PWR LED
The USB-SSR08 incorporates an onboard voltage supervisory circuit that monitors the external 9 V power. If
the input voltage falls outside of the specified ranges the PWR LED shuts off. The table below explains thefunction of the PWR LED.
PWR LED Indications
PWR LED

Indication

Steady green
Off

External power is supplied to the USB-SSR08.
Power is not supplied by the external power supply, or a power fault has occurred. A power fault
occurs when the input power falls outside of the specified voltage range of the external supply(6.0 V to 12.5 V).

12

USB-SSR08 User's Guide

Functional Details

I/O module type switch (S1)
Switch S1 is a four-position switch that sets the type of each module group for input or output (default). You
cannot mix input and output modules within a group. You can use InstaCal to read the current I/O typeconfiguration for each module group. Figure 7 shows switch S1 configured with its default settings.

Figure 7. Switch S1 default configuration

Control logic polarity switch (S2)
Switch S2 is a four-position switch that sets the control logic polarity for each module group for either inverted(active high) or non-inverted (active low, default). You can use InstaCal to read the current logic configurationfor each module group. Figure 8 shows switch S2 configured with its default settings.

Figure 8. Switch S2 default configuration

Relay power-up state switch (S3)
Switch S3 is a four-position switch that sets the state of the output relays at power-up. You can use InstaCal toread the current resistor configuration for each module group. Figure 9 shows switch S3 configured with its
default settings (modules inactive on power-up).

Figure 9. Switch S3 default configuration

Main connector and pin out
The table below lists the device connector specifications.
Connector type
Wire gauge range

Screw terminal
12-22 AWGThe USB-SSR08 has eight screw terminal pairs to connect external devices to the SSR modules. Two terminals
are dedicated to each module (one positive and one negative terminal). Each screw terminal is identified with alabel on the PCB and on the underside of the enclosure lid.

13

USB-SSR08 User's Guide

Functional Details

Figure 10. Screw terminals

Caution! Before connecting wires to the screw terminals, turn off the power to the USB-SSR08, and makesure that the signal wires do not contain live voltages.
Use 12-22 AWG wire for your signal connections. Properly insulate the wires to avoid any short circuit to theother channels, ground, or other points on the device.
Caution! Keep the length of stripped wire at a minimum to avoid a short to the enclosure! When connecting
your field wiring to the screw terminals, use the strip gage on the terminal strip, or strip to 5.5 to
7.0 mm (0.215" to 0.275") long.
Pin

Signal Name

Pin

Signal Name

1+

Module 1+5+Module 5+1-Module 1-5-Module 5-2+Module 2+

6+Module 6+2-Module 2-

6-Module 6-3+Module 3+7+Module 7+3-Module 3-7-Module 7-4+Module 4+8+Module 8+4-Module 4-8-Module 8-

Module status LEDs
Independent red LEDs next to each module screw terminal pair indicate the on/off status of each module. The
LED turns on when an output module is active or when an input module detects an input voltage (logic high).

Daisy chaining multiple USB-SSR08 devices
Daisy-chained USB-SSR08 devices connect to the USB bus through the high-speed hub on the USB-SSR08.
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.
Perform the following procedure to daisy chain multiple devices together. A user-supplied custom cable isrequired to daisy chain multiple devices.
The device connected to the computer is referred to as the host device.
Each additional device that you want to daisy chain to the host USB-SSR08 is referred to as a slave device.

This procedure assumes you already have a host device connected to a computer and to an external powersource.
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.

Note that the last device in the chain is supplied with external power.

14

USB-SSR08 User's Guide

Functional Details

Power limitations using multiple USB-SSR08 devices
When daisy chaining additional MCC USB devices to the USB-SSR08, make that you provide adequate power
to each device that you connect. The USB-SSR08 is powered with a 9 VDC nominal, 1.67 A external power
supply.

Voltage drop
A drop in voltage occurs with each device connected in a daisy-chain configuration. The voltage drop between
the 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 6.0 VDC is provided to the last device in the chain.

Mechanical drawings

15USB-SSR08 User's Guide

Functional Details

Figure 11. Circuit board (top) and housing dimensions

16

Chapter 4

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

I/O module configuration
Table 1. I/O module configuration specifications
Parameter

Specification

Modules 1-4

Selectable with switch S1 in the CL position as either input modules or output(default) modules. Switch settings for direction can be read back with
software. Do not mix input and output modules within this bank of four.
User-selectable with switch S1 CH position as either input modules or output(default) modules. Switch settings for direction can be read back with
software. Do not mix input and output modules within this bank of four.
Configurable with switch S3 with 2.2 K ohm resistor network. Switch settings
for pull-up/down selection can be read back with software. Default to pull-up.
Switch settings are applicable during power up conditions of output modules
only. Modules are active low. When switch to pull-up, modules are inactive on
power up. When switched to pull-down, modules are active on power up.
Selectable with switch S2. Switch settings for polarity can be read back via
software. Default to non-inverted. For input modules, invert mode returns a 1
when module is active; non-invert mode returns a 0 when module is active.
For output modules, invert mode allows users to write a 1 to activate themodule; non-invert mode allows users to write a 0 to activate the module.

Modules 5-8
Pull-up/pull-down on digital I/O lines

I/O module logic polarity

Power
Table 2. Power specifications
Parameter

Conditions

Specification

USB +5 V input voltage range.
USB +5 V supply current
External power supply (included)
Voltage supervisor limits - PWR LED

All modes of operation
MCC p/n CB-PWR-9
6.0 V > Vext > 12.5 V
6.0 V < Vext < 12.5 V
All modules off, 0 A downstream hub
power
All modules on, 100 mA downstream hub
power

External power consumption

4.75 V min to 5.25 V max<100 mA
9 V @ 1.67 A
PWR LED = Off(power fault)
PWR LED = On
180 mA typ, 220 mA max
300 mA typ, 360 mA max

External power input
Table 3. External power input specifications
Parameter

Conditions

Specification

6.0 V > Vext or Vext > 12.5 V
6.0 V < Vext < 12.5 V
MCC p/n CB-PWR-9+6.0 VDC to 12.5 VDC (9 VDC
power supply included)
PWR LED = Off (power fault)
PWR LED = On
9 V @ 1.67 A

External power input
Voltage supervisor limits - PWR LED(Note 1)
External power adapter (included)17

USB-SSR08 User's Guide

Note 1:

Specifications

The USB-SSR08 monitors the external +9 V power supply voltage with a voltage supervisory circuit. If thispower supply exceeds its specified limit, the PWR LED will turn off, indicating a power fault condition.

External power output
Table 4. External power output specifications
Parameter

Conditions

External power output - current
range
External power output (Note 2)
Note 2:

Specification
4.0 A max

Voltage drop between power input and daisy chain
power output

0.5 V max

The daisy chain power output option allows multiple Measurement Computing USB boards to be powered froma 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 receives at least 6.0 VDC. A user-supplied custom cable is required to daisy chain multiple devices.

USB specifications
Table 5. USB specifications
Parameter

Specification

USB "B" connector
USB device type
Device compatibility

Input
USB 2.0 (full-speed)
USB 1.1, USB 2.0 (hardware revision F and later are also compatible withUSB 3.0; see Note 3 for information on how to determine the hardware revision)
Downstream hub output port
Supports USB 2.0 high-speed, full-speed and low-speed operating points
Self-powered, 100 mA max downstream VBUS capability
MCC USB Series devices
A-B cable, UL type AWM 2527 or equivalent. (min 24 AWG VBUS/GND, min
28 AWG D+/D-)
3 meters max

USB "A" connector
USB hub typeCompatible products
USB cable type (upstream anddownstream)
USB cable length
Note 3:The board revision may be determined from the part number label on the housing that states "193779X-01L,"
where X is the board revision.

Digital I/O transfer rates
Table 6. Digital I/O transfer rate specifications
Parameter

Specification

Digital I/O transfer rate (software
paced)

System dependent, 33 to 1000 port reads/writes or single bit reads/writes per
second typical

Mechanical
Table 7. Mechanical specifications
Parameter

Specification

Board dimensions without modules(L × W × H)

8.0 × 4.8 × 0.885 in. (203.2 × 121.9 × 22.5 mm)

Enclosure dimensions (L × W × H)

9.50 × 5.00 × 2.14 in. (241.3 × 127.0 × 54.4 mm)

18

USB-SSR08 User's Guide

Specifications

Environmental
Table 8. Environmental specifications
Parameter

Specification

Operating temperature range
Storage temperature range
Humidity

0 to 70 °C-40 to 85 °C
0 to 90% non-condensing

Main connector
Table 9. Connector specifications
Parameter

Specification

Connector type
Wire gauge range

Screw terminal
12 to 22 AWG

Screw terminal pinout
Terminal #

Label

1+
12+
23+
34+
45+
56+
67+
78+
8-

Module 1+
Module 1Module 2+
Module 2Module 3+
Module 3Module 4+
Module 4Module 5+
Module 5Module 6+
Module 6Module 7+
Module 7Module 8+
Module 8-

19

EU Declaration of Conformity
According to ISO/IEC 17050-1:2010
Manufacturer:
Address:

Product Category:
Date and Place of Issue:
Test Report Number:

Measurement Computing Corporation
10 Commerce Way
Norton, MA 02766
USAElectrical equipment for measurement, control and laboratory use.
October 19, 2016, Norton, Massachusetts USA
EMI4221.05 and Addendum

Measurement Computing Corporation declares under sole responsibility that the product

USB-SSR08, Board Revision F* or later
is in conformity with the relevant Union Harmonization Legislation and 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 :2005 (IEC61000-4-5:2005)
 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 therestricted 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 "193779X-01L", where X is theboard revision.

EU Declaration of Conformity, Legacy Hardware
Manufacturer:
Address:

Category:

Measurement Computing Corporation
10 Commerce Way
Norton, MA 02766
USAElectrical equipment for measurement, control and laboratory use.

Measurement Computing Corporation declares under sole responsibility that the product

USB-SSR08, Earlier than Revision F*
to which this declaration relates is in conformity with the relevant provisions of the following standards or otherdocuments:
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
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IEC 1000-4-2 (1995): Electrostatic Discharge immunity, Criteria C.
IEC 1000-4-3 (1995): Radiated Electromagnetic Field immunity Criteria C.
IEC 1000-4-4 (1995): Electric Fast Transient Burst immunity Criteria A.
IEC 1000-4-5 (1995): Surge immunity Criteria C.
IEC 1000-4-6 (1996): Radio Frequency Common Mode immunity Criteria A.
IEC 1000-4-8 (1994): Magnetic Field immunity Criteria A.
IEC 1000-4-11 (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, 2005. Test records are outlined in Chomerics Test Report #EMI4221.05.
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 "193779X-01L", where X is theboard revision.

Measurement Computing Corporation
10 Commerce Way
Norton, Massachusetts 02766(508) 946-5100
Fax: (508) 946-9500
E-mail: info@mccdaq.com
www.mccdaq.com

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