USB-3114
USB-based Analog Output
User Guide

Document Revision 4A, January, 2011
© Copyright 2011, Measurement Computing Corporation

Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo areeither 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.
© 2011 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.
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.

HM USB-3114.doc

3Table of Contents
Preface

About this User's Guide .......................................................................................................................6
What you will learn from this user's guide ......................................................................................................... 6
Conventions in this user's guide ......................................................................................................................... 6
Where to find more information ......................................................................................................................... 6
Chapter 1

Introducing the USB-3114 ....................................................................................................................7
Overview: USB-3114 features ........................................................................................................................... 7
USB-3114 block diagram ................................................................................................................................... 8
Software features ................................................................................................................................................ 8
Chapter 2

Installing the USB-3114 ........................................................................................................................9
What comes with your USB-3114 shipment? .................................................................................................... 9
Hardware .......................................................................................................................................................................... 9
Additional documentation ................................................................................................................................................10

Unpacking the USB-3114................................................................................................................................. 10
Installing the software ...................................................................................................................................... 10
Installing the hardware ..................................................................................................................................... 10
Connecting the AC power adapter ...................................................................................................................................10
Connecting the USB-3114 to your system .......................................................................................................................11

Calibrating the USB-3114 ................................................................................................................................ 11
Chapter 3

Functional Details ...............................................................................................................................12
External components ........................................................................................................................................ 12
USB connector .................................................................................................................................................................12
USB LED .........................................................................................................................................................................12
Power connector ..............................................................................................................................................................12
Power LED ......................................................................................................................................................................13
Screw terminal banks .......................................................................................................................................................13
Analog voltage output terminals (VOUT0 to VOUT15) .................................................................................................14
Digital I/O terminals (DIO0 to DIO7) .............................................................................................................................14
Digital I/O control terminal (DIO CTL) for pull-up/down configuration ........................................................................15
Ground terminals (AGND, DGND) .................................................................................................................................15
Synchronous DAC load terminal (SYNCLD) ..................................................................................................................15
Counter terminal (CTR) ...................................................................................................................................................15
Power terminal (+5V) ......................................................................................................................................................15

Synchronizing multiple units ............................................................................................................................ 16
Mechanical drawings ........................................................................................................................................ 17
Chapter 4

Specifications ......................................................................................................................................18
Analog voltage output ...................................................................................................................................... 18
Analog output calibration ................................................................................................................................. 19
Digital input/output .......................................................................................................................................... 20
Synchronous DAC Load................................................................................................................................... 20Counter ............................................................................................................................................................. 21
Memory ............................................................................................................................................................ 21
Microcontroller ................................................................................................................................................. 21
Power ................................................................................................................................................................ 21
4

USB-3114 User's Guide

USB specifications ........................................................................................................................................... 22
Environmental .................................................................................................................................................. 22
Mechanical ....................................................................................................................................................... 22
Main connector and pin out .............................................................................................................................. 23
Declaration of Conformity ..................................................................................................................24

Preface

About this User's Guide
What you will learn from this user's guideThis user's guide describes the Measurement Computing USB-3114 data acquisition device and lists the
specifications.

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 arereading.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text

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

italic text

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
For additional information relevant to the operation of your hardware, refer to the Documents subdirectory
where you installed the MCC DAQ software (C:\Program Files\Measurement Computing\DAQ by default), or
search for your device on our website at www.mccdaq.com.

6Chapter 1

Introducing the USB-3114
Overview: USB-3114 features
This user's guide contains all of the information you need to connect the USB-3114 to your computer and to thesignals you want to measure. The USB-3114 is part of the Measurement Computing brand of USB-based dataacquisition products.
The USB-3114 is a USB 2.0 full-speed, high-drive device that is supported under popular Microsoft®
Windows® operating systems. The USB-3114 is fully compatible with both USB 1.1 and USB 2.0 ports.
The USB-3114 provides 16 channels of high-drive analog voltage output, high output current, eight digital I/O
connections, and one 32-bit event counter.
Each of the voltage outputs of the USB-3114 incorporates high-drive current output capability. The high drive
current outputs allow each of the voltage outputs to sink/source up to 40 mA (maximum) of load current.
Caution! The USB-3114 voltage outputs should not be kept in a short-circuit condition for longer than thespecified 100 ms. For those applications that may potentially exceed the 40 mA maximum current
limit or the 100 ms short-circuit condition, external current limiting must be used to prevent
potential damage to the USB-3114.
The USB-3114 has four quad (4-channel) 16-bit digital-to-analog converters (DAC). You set the voltage output
range of each DAC channel independently with software for either bipolar or unipolar. The bipolar range is±10 V, and the unipolar range is 0 to 10 V. The outputs may be updated individually or simultaneously.
The USB-3114 features eight bidirectional digital I/O connections. You can configure the DIO lines as input or
output in one 8-bit port. All digital pins are floating by default. A screw terminal connection is provided forpull-up (+5 V) or pull-down (0 volts) configuration.
The 32-bit counter can count TTL pulses. A bidirectional synchronization connection allows you tosimultaneously update the DAC outputs on multiple devices.
The USB-3114 is powered by a 5 volt, 2 amp AC power adapter that is shipped with the board. All I/O
connections are made to the screw terminals located along each side of the USB-3114.

Figure 1. USB-3114

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USB-3114 User's Guide

Introducing the USB-3114

USB-3114 block diagram
USB-3114 functions are illustrated in the block diagram shown here.

Figure 2. USB-3114 block diagram

Software features
For information on the features of InstaCal and the other software included with your USB-3114, refer to the
Quick Start Guide that shipped with your device.

8

Chapter 2

Installing the USB-3114
What comes with your USB-3114 shipment?
The following items are shipped with the USB-3114.

Hardware

USB-3114 deviceUSB cable (2 meter length)External power supply and cord – 10 watt AC power adapter. MCC part number PS-5V2AEPS.

9

USB-3114 User's Guide

Installing the USB-3114

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/PDFs/manuals/DAQ-Software-Quick-Start.pdf. This booklet supplies a brief descriptionof the software you received with your USB-3114 and information regarding installation of that software.
Please read this booklet completely before installing any software or hardware.

Unpacking the USB-3114
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the USB-3114 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 byphone, fax, or e-mail:

Phone: 508-946-5100 and follow the instructions for reaching Tech Support.
Fax: 508-946-9500 to the attention of Tech Support
Email: techsupport@mccdaq.com

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/PDFs/manuals/DAQSoftware-Quick-Start.pdf.

Installing the hardware
Be sure you are using the latest system software
Before you connect the USB-3114, make sure that you are using the latest versions of the USB drivers.
Before installing the USB-3114, download and install the latest Microsoft Windows updates. In particular,when using Windows XP, make sure you have XP Hotfix KB822603 installed. This update is intended toaddress a serious error in Usbport.sys when you operate a USB device. You can run Windows Update or
download the update from www.microsoft.com/downloads/details.aspx?familyid=733dd867-56a0-4956-b7fee85b688b7f86&displaylang=en. For more information, refer to the Microsoft Knowledge Base article"Availability of the Windows XP SP1 USB 1.1 and 2.0 update." This article is available at
support.microsoft.com/?kbid=822603.

Connecting the AC power adapter
Power to the USB-3114 is provided with the 10 watt USB adapter (PS-5V2AEPS). To connect the power
supply to your USB-3114, connect the USB adapter cord to the power connector on the USB-3114 device, andplug the AC adapter into a power outlet.
The power LED on the device lights up when the USB-3114 is receiving power from the AC power adapter.

10

USB-3114 User's Guide

Installing the USB-3114

Connecting the USB-3114 to your system
To connect the USB-3114 to your system, turn your computer on, and connect the USB cable to a USB port onyour computer or to an external USB hub that is connected to your computer. The USB cable provides powerand communication to the USB-3114.
When you connect the USB-3114 to a computer for the first time, a Found New Hardware dialog opens when
the operating system detects the device. When the dialog closes, the installation is complete. After theUSB-3114 is installed, the USB LED should flash and then remain lit. This indicates that communication isestablished between the USB-3114 and your computer.
Caution! Do not disconnect any device from the USB bus while the computer is communicating with theUSB-3114, or you may lose data and/or your ability to communicate with the USB-3114.
If the USB LED turns off
If the USB LED is illuminated but then turns off, the computer has lost communication with the USB-3114. To
restore communication, disconnect the USB cable from the computer, and then reconnect it. This should restore
communication, and the LED should turn back on.

Calibrating the USB-3114
The USB-3114 is shipped fully calibrated. Calibration coefficients are stored in the device FLASH memory.
Return the device to Measurement Computing Corporation when calibration is required. The normal calibrationinterval is once per year.

11Chapter 3

Functional Details
External components
The USB-3114 has the following external components, as shown in Figure 3.






USB connector
USB LEDPower connector
Power LED
Screw terminal banks (2)Figure 3. USB-3114 external components

USB connector
The USB connector provides communication. Use the external power supply that shipped with the USB-3114
to power the device.

USB LED
The USB LED indicates the communication status of the USB-3114. It uses up to 10 mA of current and cannot
be disabled. The table below defines the function of the USB LED.
LED Illumination
LED Illumination

Indication

Steady green
Blinks continuously

The USB-3114 is connected to a computer or external USB hub.
Data is being transferred.

Power connector
Connect the external power adapter (MCC part number PS-5V2AEPS) to this connector.

12USB-3114 User's Guide

Functional Details

Power LED
The power LED lights up when the USB-3114 is receiving power from the AC power adapter.

Screw terminal banks
The USB-3114 has two rows of screw terminals—one row on the top edge of the housing, and one row on thebottom edge. Each row has 28 connections. Use 16 AWG to 30 AWG wire gauge when making screw terminal
connections. Pin numbers are identified in Figure 4.

Figure 4. USB-3114 screw terminal pin numbering

Screw terminal – pins 1-28
The screw terminals on the bottom edge of the USB-3114 (pins 1 to 28) provide the following connections:Eight analog voltage output connections (VOUT0, VOUT2, VOUT4, VOUT6, VOUT8, VOUT10, VOUT12,
VOUT14)
Four analog ground connections (AGND)
Eight digital I/O connections (DIO0 to DIO7)

Screw terminal – pins 29-56
The screw terminals on the top edge of the USB-3114 (pins 29 to 56) provide the following connections:








Eight analog voltage output connections (VOUT1, VOUT3, VOUT5, VOUT7, VOUT9, VOUT11, VOUT13,
VOUT15)
Four analog ground connections (AGND)One SYNC terminal for external clocking and multi-unit synchronization (SYNCLD)
Three digital ground connections (DGND)
One external event counter connection (CTR)
One digital I/O pull-down resistor connection (DIO CTL)
One voltage output power connection (+5V)

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USB-3114 User's Guide

Functional Details

Figure 5. USB-3114 signal pin out

Analog voltage output terminals (VOUT0 to VOUT15)
The screw terminal pins labeled VOUT0 to VOUT15 are voltage output terminals (see Figure 5). The voltage
output range for each channel is software-programmable for either bipolar or unipolar. The bipolar range is±10 V, and the unipolar range is 0 to 10 V. The channel outputs may be updated individually or simultaneously.

Digital I/O terminals (DIO0 to DIO7)
You can connect up to eight digital I/O lines to the screw terminals labeled DIO0 to DIO7 (pins 21 through 28).
You can configure each digital port for either input or output.
When you configure the digital bits for input, you can use the digital I/O terminals to detect the state of any
TTL level input. Refer to the switch shown in Figure 6 and the schematic shown in Figure 7. When the switch
is set to the +5 V USER input, DIO7 reads TRUE (1). If you move the switch to DGND, DIO7 reads
FALSE (0).

Figure 6. DIO7 detecting the state of a switch

Figure 7. Schematic showing DIO7 detecting the state of a switch

For more information on digital signal connections
For more information on digital signal connections and digital I/O techniques, refer to the Guide to Signal
Connections (available on our web site at www.mccdaq.com/pdfs/DAQ-Signal-Connections.pdf).

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USB-3114 User's Guide

Functional Details

Digital I/O control terminal (DIO CTL) for pull-up/down configuration
All digital pins are floating by default. When inputs are floating, the state of unwired inputs are undefined (theymay read high or low). You can configure the inputs to read a high or low value when they aren’t wired. Use
the DIO CTL connection (pin 54) to configure the digital pins for pull-up (inputs read high when unwired) or
pull-down (inputs read low when unwired).


To pull up the digital pins to +5V, wire the DIO CTL terminal pin to the +5V terminal pin (pin 56).
To pull down the digital pins to ground (0 volts), wire the DIO CTL terminal pin to a DGND terminal pin(pin 50, 53, or 55).

Ground terminals (AGND, DGND)
Eight analog ground (AGND) connections provide a common ground for all analog voltage output channels.
Three digital ground (DGND) connections provide a common ground for the DIO, CTR, SYNCLD and +5V
connections.

Synchronous DAC load terminal (SYNCLD)
The synchronous DAC load connection (pin 49) is a bidirectional I/O signal that allows you to simultaneously
update the DAC outputs on multiple devices. You can use this pin for two purposes:

Configure as an input (slave mode) to receive the D/A LOAD signal from an external source.
When the SYNCLD pin receives the trigger signal, the analog outputs are updated simultaneously.

SYNCLD pin must be logic low in slave mode for immediate update of DAC outputs
When the SYNCLD pin is in slave mode, the analog outputs can be updated immediately or when a positiveedge is seen on the SYNCLD pin (this is under software control.)
The SYNCLD pin must be at a low logic level for DAC outputs to update immediately. If the external source
supplying the D/A LOAD signal is pulling the SYNCLD pin high, no update will occur.
Refer to the "USB-3100 Series" section in the Universal Library User's Guide for information on how to
update DAC outputs immediately.
Configure as an output (master mode) to send the internal D/A LOAD signal to the SYNCLD pin.
You can use the SYNCLD pin to synchronize with a second USB-3114 and simultaneously update the
DAC outputs on each device. Refer to Synchronizing multiple units section on page 16.

Use InstaCal to configure the SYNCLD mode as master or slave. On power up and reset the SYNCLD pin is
set to slave mode (input).
Refer to the "USB-3100 Series" section in the Universal Library User's Guide for information on how to
configure the USB-3114 with the Universal Library.

Counter terminal (CTR)
The CTR connection (pin 52) is the input to the 32-bit event counter. The internal counter increments when the
TTL levels transition from low to high. The counter can count frequencies of up to 1 MHz.

Power terminal (+5V)
The +5 V connection (pin 56) draws power from the external power connector. This terminal is a +5V output.
Caution! The +5V terminal is an output. Do not connect to an external power supply or you may damage
the USB-3114 and possibly the computer.

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USB-3114 User's Guide

Functional Details

Synchronizing multiple units
You can connect the SYNCLD terminal pin (pin 49) of two USB-3114 units together in a master/slave
configuration and simultaneously update the DAC outputs of both devices. Do the following.
1.

Connect the SYNCLD pin of the master USB-3114 to the SYNCLD pin of the slave USB-3114.

2.

Configure the SYNCLD pin on the slave device for input to receive the D/A LOAD signal from the masterdevice. Use InstaCal to set the direction of the SYNCLD pin.

3.

Configure the SYNCLD pin on the master device for output to generate an output pulse on the SYNCLD
pin.

Set the Universal Library SIMULTANEOUS option for each device. Refer to the Universal Library User's Guide
for information on how to configure the USB-3114 with the Universal Library.
When the SYNCLD pin on the slave device receives the signal, the analog output channels on each device are
updated simultaneously.
An example of a master/slave configuration is shown here.

Figure 8. Synchronizing the update of multiple units

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Functional Details

Mechanical drawings

Figure 9. Circuit board (top) and housing dimensions

17

Chapter 4

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

Analog voltage output
Table 1. Analog voltage output specifications
Parameter

Conditions

Digital to Analog converter
Number of channels
Resolution
Output ranges

Specifications

Calibrated
Un-calibrated

Output Transient±10 V to (0 to 10 V) or(0 to 10 V) to ±10 V range
selection (Note 1)
Host PC is reset, powered up,
suspended or a reset command isissued to device. (Note 2)
Initial power on.

DAC8554
16
16 bits±10 V, 0 to 10 V
Software configurable±10.2 V, -0.04 to 10.08 V
Software configurable
Duration 5 µS typ.
Amplitude 5 V p-p typ
Duration 2 S typ.
Amplitude 2 V p-p typ

Output current(Note 4)
Output short-circuit protection(Note 4)
Output couplingPower on and reset state

VOUTx pins
VOUTx connected to AGND

Duration 50 mS typ.
Amplitude 5 V peak typ±1.25 LSB typ.
-2 LSB to +1 LSB max.
±0.25 LSB typ.
±1 LSB max±40 mA max.: single channel±180mA max.: total load current
100 mS max.

Output noise

0 to 10 V range±10 V range
to 1 LSB accuracy
0 to10 V range±10 V range
single channel
multi-channel

DC
DACs clear to zero-scale: 0 V, ±50 mV typ.
Output range: 0-10V
14.95 µVrms typ.
31.67 µVrms typ.
25 µS typ.
2.0 V/µS typ.
4.0 V/µS typ.
100 Hz max., system dependent
100 Hz/#ch max., system dependent

Differential non-linearity(Note 3)

Calibrated
Un-calibrated

Settling timeSlew rate
Throughput
Note 1:The USB-3114 output voltage level defaults to 0V whenever the output voltage range isreconfigured.
The USB-3114 output voltage level will also default to 0V:
1) Whenever the host PC is reset, shut down or suspended
2) If a reset command is issued to the device.

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USB-3114 User's Guide

Specifications

Note 2:The duration of this particular output transient is highly dependent on the enumeration process ofthe host PC. Typically the output of the USB-3114 is stable after 2 seconds.

Note 3:The maximum differential non-linearity specification applies to the entire 0 to 50 °C temperature
range of the USB-3114. This specification also accounts for the maximum errors due to thesoftware calibration algorithm (in Calibrated mode only) and the DAC8554 digital to analog
converter non-linearities.

Note 4:The USB-3114 voltage outputs should not be kept in a short-circuit condition for longer than thespecified limit of 100 ms. For those applications that may potentially exceed the 40 mA
maximum current limit or the 100 ms short-circuit condition, external current limiting must be
used to prevent potential damage to the USB-3114.

Table 2. Absolute accuracy specifications – calibrated output, VOUTx Rload = 20 mA fixed resistive load
Range

Accuracy (±LSB)±10 V
0 to 10 V

14.0
22.0
Table 3. Absolute accuracy components specifications – calibrated output

Range% of reading

Offset (±mV)

Temp drift (%/°C)

Absolute accuracy at FS (±mV)±10 V
0 to 10 V±0.0183±0.0183

1.831
0.915

0.00055
0.00055

3.661
2.746

Table 4. Relative accuracy specifications
Range

Relative accuracy (±LSB)±10 V , 0 to 10 V

4.0 typ.

12.0 max.

Analog output calibration
Table 5. Analog output calibration specifications
Parameter

Conditions

Specifications

Recommended warm-up timeOn-board precision reference

Calibration method

Voutx Rload = 20 mA fixedresistive load

Calibration interval

15 minutes min.
DC level: 5.000 V ±1 mV max.
Tempco: ±10 ppm/°C max.
Long term stability: ±10 ppm/SQRT(1000 hrs)
Software calibration
1 year19

USB-3114 User's Guide

Specifications

Digital input/output
Table 6. Digital I/O specifications
Digital logic type
Number of I/O
Configuration
Pull-up/pull-down configuration(Note 5)
Digital I/O input loading
Digital I/O transfer rate (system paced)
Input high voltage
Input low voltage
Output high voltage (IOH = –2.5 mA)
Output low voltage (IOL = 2.5 mA)
Power on and reset state
Note 5:CMOS
8Independently configured for input or output
User configurable
All pins floating (default)
TTL (default)
47 K ohms (pull-up/pull down configurations)
System dependent, 33 to 1000 port reads/writes or single bit reads/writes per
second.
2.0 V min, 5.5 V absolute max
0.8 V max, –0.5 V absolute min
3.8 V min
0.7 V max
Input

Pull up and pull down configuration area available using the DIO CTL terminal block pin 54.
The pull down configuration requires the DIO CTL pin (pin 54) to be connected to a DGND pin(pin 50, 53 or 55). For a pull up configuration, the DIO CTL pin should be connected to the +5V
terminal pin (pin 56).

Synchronous DAC Load
Table 7. SYNCLD I/O specifications
Parameter

Conditions

Pin name
Power on and reset state
Pin type
Termination
Software selectable direction
Input clock rate
Clock pulse width
Input leakage current
Input high voltage
Input low voltage
Output high voltage (Note 6)
Output low voltage (Note 6)

Specification

Output
Input
Input
Output

IOH = –2.5 mA
No load
IOL = 2.5 mA
No loadSYNCLD (terminal block pin 49)
Input
Bidirectional
Internal 100K ohms pull-down
Outputs internal D/A LOAD signal.
Receives D/A LOAD signal from external source.
100 Hz max
1 µs min
5 µs min±1.0 µA typ.
4.0 V min, 5.5 V absolute max
1.0 V max, –0.5 V absolute min
3.3 V min
3.8 V min
1.1 V max
0.6 V max

Note 6:SYNCLD is a Schmitt trigger input and is over-current protected with a 200 Ohm series resistor.

Note 7:

When SYNCLD is in input mode, the analog outputs may either be updated immediately or whena positive edge is seen on the SYNCLD pin (this is under software control.) However, the pin
must be at a low logic level in order for the DAC outputs to be updated immediately. If an
external source is pulling the pin high, no update will occur.

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USB-3114 User's Guide

Specifications

CounterTable 8. CTR I/O specifications
Parameter
Pin name
Number of channels
Resolution
Counter type
Input typeCounter/timer read/writes rates(software paced)

Conditions

SpecificationCTR
132-bits
Event counter
TTL, rising edge triggered
System dependent, 33 to 1000 reads per second.
System dependent, 33 to 1000 reads per second.
20 mV to 100 mV±1.0 µA typ.
1 MHz max.
500 nS min.
500 ns min.
4.0 V min, 5.5 V absolute max
1.0 V max, –0.5 V absolute min

Counter readCounter write

Schmidt trigger hysteresis
Input leakage current
Input frequency
High pulse width
Low pulse width
Input high voltage
Input low voltage

MemoryTable 9. Memory specifications
EEPROM
EEPROM configuration

256 bytes
Address range
0x000-0x0FF

AccessRead/write

Description
256 bytes user data

Microcontroller
Table 10. Microcontroller specifications
Type
Program memory
Data memory

High performance 8-bit RISC microcontroller
16,384 words
2,048 bytes

Power
Table 11. Power specifications
Parameter

Conditions

Specification

Supply current
USB enumeration
Supply current (Note 8)
Quiescent current+5V user output voltage range (Note 9) Available at terminal block pin 56+5V user output current (Note 10)
Available at terminal block pin 56
AC Power Adapter Requirements (Note 11)
Output voltage
Output wattage
Power jack configuration
Power jack barrel diameter
Power jack pin diameter
Power jack polarity

21< 100 mA
355 mA typ.
4.5 V min, 5.25 V max.
10 mA max.
5V, ±5%
10 watts
Two conductor
6.3 mm
2.0 mmCenter positiveUSB-3114 User's Guide

Specifications

Note 8:This is the total quiescent current requirement for the USB-3114 which includes up to 10 mA forthe status LED. This does not include any potential loading of the digital I/O bits, +5V user
terminal or the VOUTx outputs.

Note 9:Output voltage range assumes external input power supply is within specified limits.

Note 10: This refers to the total amount of current that can be sourced from the +5V user terminal (pin 56)

for general use. This specification also includes any additional contribution due to DIO loading.
Note 11: The USB-3114 product includes an AC power adapter (MCC part number PS-5V2AEPS).

USB specifications
Table 12. USB specifications
USB device typeUSB device compatibility
USB cable length
USB cable type

USB 2.0 (full-speed)
USB 1.1, 2.0
3 meters max.
A-B cable, UL type AWM 2527 or equivalent (min 24 AWG VBUS/GND,
min 28 AWG D+/D-).

Environmental
Table 13. Environmental specifications
Operating temperature range (Note 12)
Storage temperature range
Humidity

0 to 50 °C-40 to 85 °C
0 to 90% non-condensing

Note 12: The environmental specifications listed in Table 13 apply only to the USB-3114 and not the

AC power adapter.

Mechanical
Table 14. Mechanical specifications
Dimensions

127 mm (L) x 88.9 mm (W) x 35.56 (H)22

USB-3114 User's Guide

Specifications

Main connector and pin out
Table 15. Main connector specifications
Connector type
Wire gauge range
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

Screw terminal
16 AWG to 30 AWG

Signal Name
VOUT0
NC
VOUT2
NC
AGND
VOUT4
NC
VOUT6
NC
AGND
VOUT8
NC
VOUT10NC
AGND
VOUT12
NC
VOUT14
NC
AGND
DIO0
DIO1
DIO2
DIO3
DIO4
DIO5
DIO6
DIO7

Pin
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56

23

Signal Name
VOUT1
NC
VOUT3
NC
AGND
VOUT5
NC
VOUT7
NC
AGND
VOUT9
NC
VOUT11NC
AGND
VOUT13NC
VOUT15NC
AGND
SYNCLD
DGND
NC
CTR
DGND
DIO CTL
DGND+5VDeclaration of Conformity
Manufacturer:
Address:

Category:

Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, MA 02766
USAElectrical equipment for measurement, control and laboratory use.

Measurement Computing Corporation declares under sole responsibility that the productUSB-3114
to which this declaration relates is in conformity with the relevant provisions of the following standards orother 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 A.
IEC 61000-4-5 (1995): Surge immunity Criteria A.
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
April, 2006. Test records are outlined in Chomerics Test Report #EMI4498.06.
We hereby declare that the equipment specified conforms to the above Directives and Standards.

Carl Haapaoja, Director of Quality Assurance

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

NI Hungary Kft
H-4031 Debrecen, Hátar út 1/A, Hungary
Phone: +36 (52) 515400
Fax: +36 (52) 515414
http://hungary.ni.com/debrecen