VTI Instruments EMX-75 Series User manual

EMX-75XX SERIES
64-CHANNEL
DIGITAL INPUT /OUTPUT
USER’S MANUAL
P/N: 82-0127-022
Released February 13, 2020
VTI Instruments Corp.
2031 Main Street
Irvine, CA 92614-6509
[phone]

VTI Instruments
2 EMX-75XX Preface
TABLE OF CONTENTS
TABLE OF CONTENTS ..................................................................................................................................................2
Certification ..........................................................................................................................................................4
Warranty ...............................................................................................................................................................4
Limitation of Warranty .........................................................................................................................................4
Trademarks ...........................................................................................................................................................4
Restricted Rights Legend......................................................................................................................................4
GENERAL SAFETY INSTRUCTIONS.............................................................................................................................5
Terms and Symbols ..............................................................................................................................................5
Warnings...............................................................................................................................................................5
SUPPORT RESOURCES ...............................................................................................................................................7
SECTION 1....................................................................................................................................................................8
INTRODUCTION .........................................................................................................................................................8
Overview ..............................................................................................................................................................8
Features.................................................................................................................................................................8
PREPARATION FOR USE.............................................................................................................................................8
Unpacking.............................................................................................................................................................8
Inspecting the EMX-75XX Series ........................................................................................................................9
INSTALLATION ..........................................................................................................................................................9
Install EMX-75XX ...............................................................................................................................................9
STORAGE AND SHIPMENT .......................................................................................................................................10
Storing Instruments.............................................................................................................................................10
Transporting Instruments....................................................................................................................................10
ORDERING INFORMATION .......................................................................................................................................10
ACCESSORIES REQUIRED ........................................................................................................................................11
EMX-75XX Accessories ....................................................................................................................................11
SPECIFICATIONS......................................................................................................................................................11
Technical Specifications.....................................................................................................................................11
Environmental Specifications.............................................................................................................................12
SECTION 2..................................................................................................................................................................13
EMX-7510, 64-CHANNEL,DIGITAL I/O CARD .......................................................................................................13
EMX-7510 Specifications ..................................................................................................................................14
Using the Instrument ..........................................................................................................................................14
Measurement Performance............................................................................................................................14
Connector Pin/Signal Assignment.................................................................................................................15
EMX-7510-TB160SE Terminal Block..........................................................................................................18
Theory of Operation ...........................................................................................................................................19
Overview .......................................................................................................................................................19
Configuration Section....................................................................................................................................20
Output Section...............................................................................................................................................20
Input Section .................................................................................................................................................21
TTL/LV Emulation Sourcing Current Typical connection............................................................................22
Sinking Current Typical connection..............................................................................................................22
EMX-7511, 64-CHANNEL,DIGITAL I/O TTL CARD ...............................................................................................23
Block Diagram....................................................................................................................................................23
Connector Pin/Signal Assignment.................................................................................................................24
EMX-7511 Specifications ..................................................................................................................................24
EMX-7512, 64-CHANNEL,DIGITAL I/O LV TTL CARD.........................................................................................25
Block Diagram....................................................................................................................................................25
Connector Pin/Signal Assignment.................................................................................................................26
EMX-7512 Specifications ..................................................................................................................................26
EMX-7513, 32 DI, 32DO-CHANNEL,DIGITAL I/O CARD ......................................................................................27

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EMX-75XX Preface 3
Block Diagram....................................................................................................................................................27
Connector Pin/Signal Assignment.................................................................................................................27
EMX-7513 Specifications ..................................................................................................................................28
EMX-7514, 64-CHANNEL,DIGITAL OUTPUT CARD ...............................................................................................29
Block Diagram....................................................................................................................................................29
Connector Pin/Signal Assignment.................................................................................................................30
EMX-7514 Specifications ..................................................................................................................................30
EMX-7515, 64-CHANNEL,DIGITAL INPUT CARD...................................................................................................31
Block Diagram....................................................................................................................................................31
Connector Pin/Signal Assignment.................................................................................................................32
EMX-7515 Specifications ..................................................................................................................................32
EMX-7519, 64-CHANNEL,DIGITAL OUTPUT CARD ...............................................................................................33
EMX-7519 Specifications ..................................................................................................................................34
Using the Instrument ..........................................................................................................................................34
Measurement Performance............................................................................................................................34
Connector Pin/Signal Assignment.................................................................................................................35
Theory of Operation ...........................................................................................................................................37
Overview .......................................................................................................................................................37
Configuration Section....................................................................................................................................38
Output Section...............................................................................................................................................38
Sinking Current Typical connection..............................................................................................................38
SECTION 3..................................................................................................................................................................40
SOFTWARE INSTALLATION......................................................................................................................................40
Driver Installation...............................................................................................................................................40
IVI Shared Components Installation (Windows Only) .................................................................................41
Instrument Driver Installation .......................................................................................................................41
Programming the Instrument ..............................................................................................................................42
Related Software Components............................................................................................................................42
Using the Driver .................................................................................................................................................42
USING THE EMX-75XX SERIES ..............................................................................................................................43
Initializing\Closing the Instrument .....................................................................................................................43
Basic Operation ..................................................................................................................................................45
SECTION 4..................................................................................................................................................................49
SFP OPERATION .....................................................................................................................................................49
Introduction ........................................................................................................................................................49
Common Issues...................................................................................................................................................50
Multiple Network Ports.................................................................................................................................51
Firewall .........................................................................................................................................................51
General Web Page Operation .............................................................................................................................51
Login...................................................................................................................................................................52
Index...................................................................................................................................................................53
VTI Instruments Logo...................................................................................................................................54
EMX-75XX Soft Front Panel........................................................................................................................54
Monitor and Control Page ..................................................................................................................................54
Normal Mode Configuration ..............................................................................................................................55
Port Configuration Fields ..............................................................................................................................55
Pattern Mode Configuration ...............................................................................................................................56
Device Info Tab ..................................................................................................................................................56
EMX-75XX has 7 variants and below are features provided by each of them...................................................57
APPENDIX -A.......................................................................................................................................................61

VTI Instruments
4 EMX-75XX Preface
CERTIFICATION
VTI Instruments (VTI) certifies that this product met its published specifications at the time of shipment from the
factory. VTI further certifies that its calibration measurements are traceable to the United States National Institute of
Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization’s
calibration facility, and to the calibration facilities of other International Standards Organization members.
WARRANTY
The product referred to herein is warranted against defects in material and workmanship for a period of three years
from the receipt date of the product at customer’s facility. The sole and exclusive remedy for breach of any warranty
concerning these goods shall be repair or replacement of defective parts, or a refund of the purchase price, to be
determined at the option of VTI.
For warranty service or repair, this product must be returned to a VTI Instruments authorized service center. The
product shall be shipped prepaid to VTI and VTI shall prepay all returns of the product to the buyer. However, the
buyer shall pay all shipping charges, duties, and taxes for products returned to VTI from another country.
VTI warrants that its software and firmware designated by VTI for use with a product will execute its programming
when properly installed on that product. VTI does not however warrant that the operation of the product, or
software, or firmware will be uninterrupted or error free.
LIMITATION OF WARRANTY
The warranty shall not apply to defects resulting from improper or inadequate maintenance by the buyer, buyer-
supplied products or interfacing, unauthorized modification or misuse, operation outside the environmental
specifications for the product, or improper site preparation or maintenance.
VTI Instruments shall not be liable for injury to property other than the goods themselves. Other than the limited
warranty stated above, VTI Instruments makes no other warranties, express or implied, with respect to the quality of
product beyond the description of the goods on the face of the contract. VTI specifically disclaims the implied
warranties of merchantability and fitness for a particular purpose.
TRADEMARKS
Java Runtime Environment™ are trademarks or registered trademarks of Sun Microsystems, Inc. or its subsidiaries
in the United States and other countries. LabVIEW™ and LabWindows/CVI™ are trademarks of National
Instruments Corporation. Visual Basic®, Windows®, and Internet Explorer® are registered trademarks of the
Microsoft Corporation or its subsidiaries. Linux® is a registered trademark of the Linux Foundation. IVI™ is a
trademark of the IVI Foundation. Bonjour™ is a trademark of Apple, Inc.
RESTRICTED RIGHTS LEGEND
Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subdivision (b)(3)(ii) of the
Rights in Technical Data and Computer Software clause in DFARS 252.227-7013.
VTI Instruments
2031 Main Street
Irvine, CA 92614-6509 U.S.A.

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EMX-75XX Preface 5
GENERAL SAFETY INSTRUCTIONS
Review the following safety precautions to avoid bodily injury and/or damage to the product.
These precautions must be observed during all phases of operation or service of this product.
Failure to comply with these precautions, or with specific warnings elsewhere in this manual,
violates safety standards of design, manufacture, and intended use of the product.
Service should only be performed by qualified personnel.
TERMS AND SYMBOLS
These terms may appear in this manual:
WARNING
Indicates that a procedure or condition may cause bodily injury or death.
CAUTION
Indicates that a procedure or condition could possibly cause damage to
equipment or loss of data.
These symbols may appear on the product:
ATTENTION - Important safety instructions
Frame or chassis ground
Indicates that the product was manufactured after August 13, 2005. This mark is
placed in accordance with EN 50419, Marking of electrical and electronic
equipment in accordance with Article 11(2) of Directive 2002/96/EC (WEEE).
End-of-life product can be returned to VTI by obtaining an RMA number. Fees
for takeback and recycling will apply if not prohibited by national law.
WARNINGS
Follow these precautions to avoid injury or damage to the product:
Use Proper Power Cord
To avoid hazard, only use the power cord specified for this product.
Use Proper Power Source
To avoid electrical overload, electric shock, or fire hazard, do not
use a power source that applies other than the specified voltage.
Power Consumption
Prior to using these cards, it is imperative that the power
consumption of all cards that will be installed in the mainframe be
calculated on all power supply rails. Failure to do so may result in
damaging the switch card and the mainframe.

VTI Instruments
6 EMX-75XX Preface
WARNINGS (CONT.)
Avoid Electric Shock
To avoid electric shock or fire hazard, do not operate this product
with the covers removed. Do not connect or disconnect any cable,
probes, test leads, etc. while they are connected to a voltage source.
Remove all power and unplug unit before performing any service.
Service should only be performed by qualified personnel.
Ground the Product
This product is grounded through the grounding conductor of the
power cord. To avoid electric shock, the grounding conductor must
be connected to earth ground.
Operating Conditions
To avoid injury, electric shock or fire hazard:
-
Do not operate in wet or damp conditions.
-
Do not operate in an explosive atmosphere.
-
Operate or store only in specified temperature range.
-
Provide proper clearance for product ventilation to prevent
overheating.
-
DO NOT operate if any damage to this product is suspected.
Product should be inspected or serviced only by qualified
personnel.
Improper Use
The operator of this instrument is advised that if the equipment is
used in a manner not specified in this manual, the protection
provided by the equipment may be impaired.
Conformity is checked by inspection.

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EMX-75XX Preface 7
SUPPORT RESOURCES
Support resources for this product are available on the Internet and at VTI Instruments customer support
centers.
AMETEK INC.
VTI Instruments
World Headquarters
VTI Instruments Corp.
2031 Main Street
Irvine, CA 92614-6509
Phone: [phone]
Fax: [phone]
AMETEK INC.
VTI Instruments
Cleveland Instrument Division
5425 Warner Road
Suite 13
Valley View, OH 44125
Phone: [phone]
Fax: [phone]
AMETEK INC.
VTI Instruments
Lake Stevens Instrument Division
3216 Wetmore Avenue, Suite 1
Everett, WA 98201
Phone: [phone]
Fax: [phone]
AMETEK Instruments India Pvt. Ltd.
VTI - Bangalore Instrument Division
Divyasree N R Enclave, Block A,
4th Floor, Site No 1, EPIP Industrial Area,
Whitefield, Bengaluru 560066, India
Phone: [phone]
Fax: [phone]
Asia Support
Phone: [phone]
Technical Support
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Visit http://www.vtiinstruments.com for worldwide support sites and service plan information.

VTI Instruments
8 EMX-75XX Introduction
SECTION 1
INTRODUCTION
OVERVIEW
The EMX-75XX Series is a family of high-performance PXIe modules consisting of multiple I/O
configurations and logic levels. Dedicated input or output cards are available for high channel
count applications while other cards provide ultimate flexibility with eight, 8-bit ports (64
channels) that can be configured as an input or output under programmatic control.
FEATURES
Models capable of sinking 300 mA include built-in clamping diodes, making these modules ideal
for driving and sensing external devices such as relays, while all clamping diodes and open
collector channels can be pulled up internally, rather than on a per channel basis, simplifying
overall system cabling.Isolated models are also available for more demanding applications.
PREPARATION FOR USE
UNPACKING
When an EMX-75XX Series module is unpacked from its shipping carton, the contents should
include the following items:
•An EMX-7510/EMX-7511/EMX-7512/EMX-7513/EMX-7514/EMX-7515/EMX-7519
•VTI Instruments Distribution CD
All components should be immediately inspected for damage upon receipt of the unit. ESD
precautions should be observed while unpacking and installing the instrument into a PXI Express
chassis. The part number, model number, and serial number can be found on the side cover of the
card as shown below.

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EMX-75XX Introduction 9
FIGURE 1-1: SERIAL NUMBER LOCATION
INSPECTING THE EMX-75XX SERIES
The EMX-7510/EMX-7511/EMX-7512/EMX-7513/EMX-7514/EMX-7515/ EMX-7519 modules
were carefully inspected both mechanically and electrically before shipment. They should be free
of marks or scratches and they should meet their published specifications upon receipt. If the
module was damaged in transit, do the following:
•Save all packing materials
•File a claim with the carrier
•Call a VTI Instruments sales and service office
INSTALLATION
INSTALL EMX-75XX
1. Set up the PXI Express chassis. See the Chassis’ Installation Guide for assistance.
2. Make sure the PXI Express chassis is powered off.
3. Select a PXIe slot or a hybrid slot in the PXI Express chassis for the EMX-75XX and insert it
carefully.
4. After the EMX-75XX is inserted all the way, secure it with the screws at the top and bottom
of the EMX-75XX front panel.

VTI Instruments
10 EMX-75XX Introduction
STORAGE AND SHIPMENT
STORING INSTRUMENTS
Store the module in a clean, dry, and static-free environment. For other requirements, see storage
and transport restrictions in Specification.
TRANSPORTING INSTRUMENTS
Package the module using the original factory packaging or packaging identical to the factory
packaging. Containers and materials identical to those used in factory packaging are available
through VTI Instruments offices. If returning the module to VTI Instruments for service, contact a
VTI Service Center to set up an RMA. The following information will be required:
•Serial number
•Model number
•Type of service required
•Return address
•If applicable, a description of the problem that is being encountered which provides specific
detail relating the instrument being returned.
In any correspondence, refer to the serial number and RMA number. Mark the container
“FRAGILE” to ensure careful handling. If it is necessary to package the module in a container
other than the original packaging, observe the following (although use of other packaging material
is not recommended):
1. Wrap the module in heavy paper or anti-static plastic
2. Protect the front panel with cardboard
3. Use a double-wall carton made of at least 350 lbs test material
4. Cushion the module to prevent damage
CAUTION Do not use styrene pellets in any shape as packing material for the module. The pellets do not
adequately cushion the module and do not prevent the module from shifting in the carton. In
addition, the pellets create static electricity that can damage electronic components.
ORDERING INFORMATION
Model
Configuration
EMX-7510
64-CH DIO, Source/Sink, 60 V max Static I/O
EMX-7511
64-CH, DIO TTL, Static I/O
EMX-7512
64-CH, DIO LV TTL, Static I/O
EMX-7513
32DI/32DO, Source/Sink, 60 V max, Isolated Static I/O
EMX-7514
64 DO, Source/Sink, 60 V max, Isolated Static
EMX-7515
64 DI, 60 V max, Isolated Static
EMX-7519
64-CH DO, Source/Sink, 60 V max Static

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EMX-75XX Introduction 11
ACCESSORIES REQUIRED
EMX-75XX ACCESSORIES
CONNECTOR INFORMATION
STRAIN RELIEF BRACKET KIT (WITHOUT CONNECTOR)
VTI Part Number
70-0409-160
CRIMP PIN
VTI Part Number
Manufacturer/Part Number
52-0109-000 (includes 100 crimp pins)
ERNI 234064
MATING CONNECTOR
VTI Part Number
Manufacturer/Part Number
27-0088-160 (one per board)
ERNI 024070
CRIMP PIN
VTI Part Number
Manufacturer/Part Number
27-0088-000
ERNI 014729
CRIMP TOOL (DIN)
VTI Part Number
Manufacturer/Part Number
46-0010-000
ERNI 014374
EXTRACTION TOOL (DIN)
VTI Part Number
Manufacturer/Part Number
46-0011-000
ERNI 471555
SPECIFICATIONS
TECHNICAL SPECIFICATIONS
Data Card Specifications
EMX-7510
Digital Input
Channels
64 (Eight 8-Bit Ports
VIN (high)
>40% of VCLAMP
VIN (low)
<16% of VCLAMP
VIN (max)
60 V
Data Output
Characteristics
VOUT (high)
>2 V to 60 V
VOUT (low)
<1.5 V @ 300m/A
Voltage Range
Internal Voltage Source
(VCLAMP)
3.3 V, 5.0 V, 12.0, V, and 24.0 V
User Voltage (VCLAMP)
>2 V up to 60 V
Connector Type
ERNI 160-Pin
Modes
Immediate
Inputs and outputs read and written via
software control
EMX-7511
Digital
Input/Output
Channels
64 (Eight 8-Bit Ports)
Logic Levels
Standard TTL @ 24mA sink/source
EMX-7512
Digital
Input/Output
Channels
64 (Eight 8-Bit Ports)
Logic Levels
Standard LV TTL @ 24mA sink/source
EMX-7513
Digital Input
Channels
32
Logical High
2.8 V to 60 V
Logical Low
< 2 V
Isolation
1000 V
Digital Output
Channels
32
Sink/Source
100 mA to 60 V (AC/DC)
Potential Free
Yes
Isolation
1000 V
Connector Type
ERNI 160-Pin
EMX-7514
Digital Output
Channels
64
Sink/Source
100 mA to 60 V (AC/DC)
Potential Free
Yes
Isolation
1000 V

VTI Instruments
12 EMX-75XX Introduction
Data Card Specifications
Connector Type
ERNI 160-Pin
EMX-7515
Digital Input
Channels
32
Logical High
2.8 V to 60 V
Logical Low
< 2 V
Isolation
1000 V
Connector Type
ERNI 160-Pin
EMX-7519
Data Output
Characteristics
V
OUT
(high)
>2 V to 60 V
VOUT (low)
<1.5 V @ 300m/A
Voltage Range
Internal Voltage Source
(VCLAMP)
3.3 V, 5.0 V, 12.0, V, and 24.0 V
User Voltage (VCLAMP)
>2 V up to 60 V
Connector Type
ERNI 160-Pin
Modes
Immediate
Outputs are written via software control
ENVIRONMENTAL SPECIFICATIONS
Data Card Specifications
Operating Environment
Operating Temperature
0°C to +55 °C
Relative Humidity, Non
Condensing
10% to 90%
Storage Environment
Storage Temperature
-40°C to +80°C
Relative Humidity, Non
Condensing
5% to 95 %
Altitude
3,000 m
Pollution Degree
2

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EMX-75XX Index 13
SECTION 2
EMX-7510, 64-CHANNEL,DIGITAL I/O CARD
The EMX-7510 is a high-performance I/O module with eight ports of 8 bits (64 channels) each.
Each 8-bit port may be configured as an Input or Output under program control.
In order to ease overall system cabling, all clamping diodes and open collector channels are pulled
up internally, rather than on a per-channel basis.
Each channel can sink 300 mA, and includes built-in clamping diodes, making this module ideal
for driving and sensing external devices such as relays.
FIGURE 2-1: EMX-7510

VTI Instruments
14 EMX-75XX Index
EMX-7510 SPECIFICATIONS
GENERAL SPECIFICATIONS
DATA INPUT CHARACTERISTICS
V
IN
(high)
VIN (low)
VIN (max)
> 40% of Vclamp (Typical)
< 16% of Vclamp (Typical)
60 V
DATA OUTPUT CHARACTERISTICS
V
OUT
(high)
VOUT (low)
> 2 V to 60 V
< 1.5 V @ 300 mA
VOLTAGE RANGE
Internal voltage source
User
3.3 V, 5.0 V, 12.0 V, and 24.0 V
> 2 V up to 60 V
MODES
Immediate (Normal)
Inputs and outputs read and written via software control
DATA INPUT CLOCK SOURCES
Internal clock, front panel input
USING THE INSTRUMENT
Measurement Performance
This section discusses tips and procedures that can help maximize the actual performance realized
with the EMX-7510 and aid the user in avoiding some common pitfalls associated with making
measurements.
Warm-up Time
As the EMX-7510 doesn't require calibration and there are no adjustments for the instrument to
meet its published specifications, there is no warm up required.
Voltage Outputs
A channel output is pulled to the configured voltage through a pull-up resistor. The actual output
that will be seen by the unit under test is defined by the standard voltage divider equation:








+
=)
||(
||
1
0
INPUTUSER
INPUTUSER
CLAMP RRR
RR
VV
Where,
V0is the output voltage
VCLAMP is the User configured voltage
R1is the internal pull-up resistor
RUSER is the external load presented by the unit under test
In normal mode, R1is 100 kΩ. In TTL emulation mode, R1is 499 Ωand in LV emulation mode,
R1 is 330 Ω. So the pull-up to VCLAMP is much stronger. TTL emulation mode is available for the
3.3 V and 5 V voltage levels.
If voltages higher than those provided by the equation above are desired, the User can supply a
voltage with an external power supply in conjunction with a low-value pull-up resistor to get
closer to the user’s VCLAMP voltage. The 300 mA sink capability of the channel still must be
observed.

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EMX-75XX Index 15
FPGA
GND_S
Input Detect with
Hysteresis
DATAx.y
DIO conn
PXIe conn
R1A
330 Ω
R1B
499 Ω
R1C
100 kΩ
3.7 V
LV Emulation
5 V
TTL Emulation VCLAMP
Channel
Control
Over-Current
Detect
R
INPUT
201 k
User
Voltage
ESD
Int. Voltage
(3.3, 5, 12,
24V)
R
USER
GND_S GND_S
Voltage Output
Mode
Internal Supply
Pull-Up (RX)
Open Circuit V0
Normal
24 V
100 kΩ (R3)
~15.84 V
Normal
12 V
100 kΩ (R3)
~7.92 V
Normal
5 V
100 kΩ (R3)
~3.3 V
Normal
3.3 V
100 kΩ (R3)
~2.47 V
TTL Emulation
5 V*
499 Ω (R2)
~4.64 V
LV Emulation
3.7 V*
330 Ω (R1)
~3.34 V
*For TTL and LV modes, there is approximately a 0.35 V drop due to the Schottky diode, resulting in an actual
internal supply voltage of 4.65 V and 3.35V, respectively.
Mode
External Supply
Load
VO-USER
Normal
V
CLAMP
R
USER
( )






+Ω
INPUTUSER
INPUT
USER
CLAMP
RRk
RR
V||100
||
FIGURE 2-2: VOLTAGE OUTPUT BLOCK DIAGRAM
Connector Pin/Signal Assignment
The connector pins and their signal assignments are shown below Table 2-1. For mating connector
and accessory information, please see the EMX-75XX Accessories.
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
Pin
Signal
A1
GND_S
B1
GND_C
C1
GND_S
D1
EXT_GATE_AC
Q
E1
EXT_GATE_GE
N
A2
GND_S
B2
GND_S
C2
GND_S
D2
EXT_CLK
E2
GND_S
A3
DATA1.
B3
GND_S
C3
DATA1.
D3
GND_S
E3
DATA1.5

VTI Instruments
16 EMX-75XX Index
4
8
A4
DATA1.
1
B4
GND_S
C4
DATA1.
2
D4
GND_S
E4
DATA1.6
A5
DATA1.
3
B5
GND_S
C5
DATA1.
7
D5
GND_S
E5
DATA2.5
A6
DATA2.
4
B6
DATA2.1
C6
DATA2.
8
D6
GND_S
E6
DATA2.2
A7
GND_S
B7
GND_S
C7
GND_S
D7
DATA2.3
E7
GND_S
A8
GND_S
B8
GND_S
C8
GND_S
D8
GND_S
E8
DATA2.6
A9
DATA2.
7
B9
USER_V
2
C9
DATA3.
8
D9
GND_S
E9
DATA3.5
A1
0
DATA3.
4
B1
0
GND_S
C1
0
DATA3.
1
D1
0
USER_V1
E1
0
GND_S
A1
1
DATA3.
2
B1
1
GND_S
C1
1
DATA3.
7
D1
1
GND_S
E1
1
DATA3.6
A1
2
DATA3.
3
B1
2
GND_S
C1
2
DATA4.
2
D1
2
GND_S
E1
2
DATA4.4
A1
3
GND_S
B1
3
USER_V
4
C1
3
GND_S
D1
3
GND_S
E1
3
DATA4.5
A1
4
GND_S
B1
4
GND_S
C1
4
GND_S
D1
4
GND_S
E1
4
DATA4.8
A1
5
DATA4.
1
B1
5
GND_S
C1
5
DATA4.
7
D1
5
GND_S
E1
5
GND_S
A1
6
DATA4.
3
B1
6
USER_V
3
C1
6
DATA5.
1
D1
6
GND_S
E1
6
GND_S
A1
7
DATA5.
3
B1
7
GND_S
C1
7
DATA5.
2
D1
7
USER_V6
E1
7
DATA4.6
A1
8
DATA5.
8
B1
8
GND_S
C1
8
DATA5.
4
D1
8
GND_S
E1
8
DATA5.5
A1
9
GND_S
B1
9
GND_S
C1
9
GND_S
D1
9
GND_S
E1
9
DATA5.7
A2
0
GND_S
B2
0
USER_V
5
C2
0
GND_S
D2
0
GND_S
E2
0
DATA5.6
A2
1
DATA6.
4
B2
1
GND_S
C2
1
DATA6.
5
D2
1
GND_S
E2
1
GND_S
A2
2
DATA6.
1
B2
2
GND_S
C2
2
DATA6.
8
D2
2
GND_S
E2
2
GND_S
A2
3
DATA6.
3
B2
3
GND_S
C2
3
DATA6.
2
D2
3
GND_S
E2
3
DATA6.6
A2
4
DATA7.
4
B2
4
USER_V
7
C2
4
DATA7.
1
D2
4
USER_V8
E2
4
DATA6.7
A2
5
GND_S
B2
5
GND_S
C2
5
GND_S
D2
5
GND_S
E2
5
DATA7.8
A2
6
GND_S
B2
6
GND_S
C2
6
GND_S
D2
6
GND_S
E2
6
DATA7.5
A2
7
DATA7.
3
B2
7
GND_S
C2
7
DATA7.
6
D2
7
GND_S
E2
7
GND_S
A2
8
DATA7.
2
B2
8
GND_S
C2
8
DATA7.
7
D2
8
GND_S
E2
8
GND_S
A2
9
DATA8.
4
B2
9
GND_S
C2
9
DATA8.
1
D2
9
GND_S
E2
9
DATA8.5
A3
0
DATA8.
2
B3
0
GND_S
C3
0
DATA8.
6
D3
0
GND_S
E3
0
DATA8.8
A3
1
GND_S
B3
1
GND_C
C3
1
GND_S
D3
1
GND_S
E3
1
GND_S
A3
DATA8.
B3
GND_S
C3
DATA8.
D3
GND_S
E3
GND_S

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EMX-75XX Index 17
2
3
2
2
7
2
2
TABLE 2-1: EMX-7510 CONNECTOR PIN SIGNAL ASSIGNMENT

VTI Instruments
18 EMX-75XX Index
FIGURE 2-3: EMX-7510 FRONT PANEL DETAIL
EMX-7510-TB160SE Terminal Block
VTI offers a single-ended terminal block for the EMX-7510 (P/N: 70-0367-005). The terminal
block simplifies cabling by providing screw-terminal blocks for user wiring. Signal pin mapping
for the EMX-7510 can be seen in Table 2-2.
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Con
n
Pin
T1
GND_S
E2
T41
DATA4.1
A15
T81
GND_S
C14
T121
DATA6.1
A22
T2
EXT_CLK
D2
T42
GND_S
A14
T82
GND_S
B14
T122
DATA6.3
A23
T3
DATA1.5
E3
T43
GND_S
A13
T83
DATA4.7
C15
T123
GND_S
A20
T4
GND_S
D3
T44
DATA3.3
A12
T84
GND_S
B15
T124
DATA5.8
A18
T5
DATA1.6
E4
T45
DATA3.4
A10
T85
DATA5.1
C16
T125
GND_S
A19
T6
GND_S
D4
T46
USER_V1
D10
T86
USER_V3
B16
T126
DATA4.3
A16
T7
DATA2.5
E5
T47
GND_S
E10
T87
DATA5.2
C17
T127
DATA5.3
A17
T8
GND_S
D5
T48
DATA3.7
C11
T88
GND_S
B17
T128
GND_S
D32
T9
DATA2.2
E6
T49
GND_S
B11
T89
DATA5.4
C18
T129
DATA8.8
E30
T10
GND_S
D6
T50
DATA3.2
A11
T90
GND_S
B18
T130
GND_D
D30
T11
GND_S
E7
T51
GND_S
B12
T91
GND_S
C19
T131
DATA8.5
E29
T12
DATA2.3
D7
T52
DATA4.2
C12
T92
GND_S
B19
T132
GND_S
D29
T13
DATA2.6
E8
T53
USER_V4
B13
T93
GND_S
C20
T133
GND_S
E31
T14
GND_S
D8
T54
GND_S
C13
T94
USER_V5
B20
T134
GND_S
D31
T15
DATA3.5
E9
T55
DATA2.7
A9
T95
DATA8.7
C32
T135
DATA8.6
C30
T16
GND_S
D9
T56
GND_S
A8
T96
EXT_GATE_GEN
E1
T136
GND_S
B30
T17
DATA1.8
C3
T57
GND_S
A7
T97
DATA7.5
E26
T137
GND_S
C31
T18
GND_S
B3
T58
DATA2.4
A6
T98
GND_S
D26
T138
GND_C
B31
T19
GND_S
C2
T59
DATA1.3
A5
T99
DATA6.7
E24
T139
GND_D
B29
T20
GND_S
B2
T60
DATA1.1
A4
T100
USER_V8
D24
T140
GND_S
C29
T21
DATA1.2
C4
T61
DATA1.4
A3
T101
GND_S
E27
T141
GND_S
B28
T22
GND_S
B4
T62
GND_S
A2
T102
GND_S
D27
T142
DATA7.7
C28
T23
DATA1.7
C5
T63
GND_S
B10
T103
GND_S
E28
T143
GND_S
C25
T24
GND_S
B5
T64
DATA3.1
C10
T104
GND_S
D28
T144
GND_S
B25
T25
DATA2.8
C6
T65
GND_S
E15
T105
DATA6.6
E23
T145
GND_S
B27
T26
DATA2.1
B6
T66
GND_S
D15
T106
GND_S
D23
T146
DATA7.6
C27
T27
GND_S
C7
T67
GND_S
E16
T107
GND_S
E22
T147
GND_S
B26
T28
GND_S
B7
T68
GND_S
D16
T108
GND_S
D22
T148
GND_S
C26

www.vtiinstruments.com
EMX-75XX Index 19
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Conn
Pin
TB
Ref
Signal
Con
n
Pin
T29
GND_S
C8
T69
DATA4.6
E17
T109
GND_S
D25
T149
GND_S
A26
T30
GND_S
B8
T70
USER_V6
D17
T110
DATA7.8
E25
T150
DATA7.3
A27
T31
DATA3.8
C9
T71
DATA8.6
E18
T111
DATA5.6
E20
T151
DATA7.2
A28
T32
USER_V2
B9
T72
GND_S
D18
T112
GND_S
D20
T152
DATA8.4
A29
T33
DATA3.6
E11
T73
DATA5.7
E19
T113
DATA6.8
C22
T153
DATA8.2
A30
T34
GND_S
D11
T74
GND_S
D19
T114
GND_S
B22
T154
GND_S
A31
T35
GND_S
D12
T75
DATA6.5
C21
T115
DATA6.2
C23
T155
GND_S
E32
T36
DATA4.4
E12
T76
GND_S
B21
T116
GND_S
B23
T156
GND_C
B1
T37
GND_S
D13
T77
GND_D
D1
T117
DATA7.1
C24
T157
DATA8.3
A32
T38
DATA4.5
E13
T78
DATA3.5
A21
T118
USER_V7
B24
T158
GND_
A1
T39
GND_S
D14
T79
EXT_GATE_ACQ
D21
T119
DATA7.4
A24
T159
GND_S
B32
T40
DATA4.8
E14
T80
GND_S
E21
T120
GND_S
A25
T160
GND_S
C1
TABLE 2-2: EMX-7510 TO TB160SE TERMINAL BLOCK PIN AND SIGNAL MAPPING
THEORY OF OPERATION
This section provides an overview of how the EMX-7510 works. The figure below shows
illustrates this process.
FIGURE 2-4: EMX-7510 BLOCK DIAGRAM
Overview
The EMX-7510 supports a static mode where user-driven software commands execute
reading/writing data channels on a per port basis. Each port can be programmed for direction and
polarity. The default direction is input and default polarity is normal. Ports also need a voltage

VTI Instruments
20 EMX-75XX Index
reference before data can be read or written; this voltage is used for pulling up open drain data
lines and setting reference voltage for threshold detection in input path. No voltage should be
applied on data lines before voltage selection and during voltage configuration process. User can
select a voltage from 3.3 V, 5 V, 12 V or 24 V provided on the module or supply a voltage
through front panel connector, to be used as VCLAMP. By default, no voltage is selected and data
lines are floating. There is also an option of configuring a port’s voltage setting as either TTL or
Low Voltage emulation. In TTL emulation setting, open drain lines are pulled up to 5 V and have
a sourcing capability of 4 mA, whereas in Low Voltage (LV) option the pull-up voltage is 3.3 V
with 4 mA drive strength.
When doing read and writes, data written to a port set for output updates data on that port, data
written to a port set for input does not have any effect. Data read from a port always reads current
status of data pins (whether driven by card or by user).
When a port’s direction is output, data is driven by the DIO on the corresponding channels and no
user voltage should be applied on those channels. When direction is input, data lines are pulled up
to VCLAMP using 100 kΩ resistor and user can drive their data on the channels with a VIN range of
zero to VCLAMP.
TTL and LV emulation voltage selection is only applicable when port’s direction is output. Input
mode will not be allowed for emulation voltage.
Data in output register(s) of concerned port is reset (set to all F’s) after reset and any operation that
involves voltage configuration, as listed below:
1) When card is reset. All ports are affected.
2) A port’s direction is changed when its voltage is set for TTL/LV emulation. Only concerned
port is affected.
3) Port voltage configuration is done. Only concerned port is affected.
Data in output registers is not retained if direction is changed. So for example, when an output port
that is driving AA on data lines is made input, all its channels are pulled up so that user data can
be driven but when the direction is changed back to output, FF gets driven, given that polarity and
voltage setting didn’t change.
Polarity settings are applicable irrespective of direction. On output channels, changing the polarity
flips the state of data lines and further writes are done according to polarity selection (for example,
if polarity is configured as reversed then writing 1 to a channel writes a 0 to it and vice versa).
Read back of data, whether driven by card when direction is output or driven by user when
direction is input, also checks for polarity and if polarity is reversed, 1 is read as 0, otherwise as 1
and 0 is read as 1, otherwise as 0.
Configuration Section
This section of circuit is used to select reference voltage (VCLAMP) for ports. Each port has a set of
programmatically controlled switches that let the user select a voltage from 3.3 V, 5 V, 12 V, 24 V
and User supplied voltage, which can be anywhere from 3.3 V to 60 V. In addition, LV and TTL
emulation modes can be selected which use 3.3 V and 5 V as VCLAMP respectively, and insert a low
impedance pull-up resistor in the path to source 4 mA.
Output Section
The output section of each channel consists of an N-channel MOSFET, pull-up resistors and over
current sense circuitry. When a 1 is driven on channel, the MOSFET is turned off and data line is
pulled-up to VCLAMP using appropriate pull-up resistor (330 Ω for LV emulation, 500 Ω for TTL
emulation and 100 kΩ otherwise). The rising voltage level at data channel exhibits RC charging
with a rise time of approximately 70 μs with 100 kΩ pull-up resistor and about 600 ns with low
impedance pull-up in TTL and LV voltage configurations. When a 0 is driven on channel, the
MOSFET is turned on and data line is connected to ground via a current sense resistor of 0.3 Ω.