artisan EADS Talon SR122 User manual

Artisan Technology Group is your source for quality
new and certied-used/pre-owned equipment
• FAST SHIPPING AND
DELIVERY
• TENS OF THOUSANDS OF
IN-STOCK ITEMS
• EQUIPMENT DEMOS
• HUNDREDS OF
MANUFACTURERS
SUPPORTED
• LEASING/MONTHLY
RENTALS
• ITAR CERTIFIED
SECURE ASSET SOLUTIONS
SERVICE CENTER REPAIRS
Experienced engineers and technicians on staff
at our full-service, in-house repair center
WE BUY USED EQUIPMENT
Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins
www.artisantg.com/WeBuyEquipment
REMOTE INSPECTION
Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com
LOOKING FOR MORE INFORMATION?
Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical
specications, manuals, and documentation
Contact us: (888) 88-SOURCE | [e-mail] | www.artisantg.com
SM
View
Instra

REFERENCE MANUAL
Talon Instruments™
SR122
8-Channel RS-485 Differential
Stimulus/Response Module
Publication Date: 04/24/06
Publication Number: SRMM915 Rev. A
Instrument Part Number: SR122
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

THANK YOU FOR PURCHASING THIS
EADS NORTH AMERICA TEST AND SERVICES PRODUCT
For this product, or any other EADS North America Test and Services a division of EADS North America, Inc.
(“EADS North America Test and Services”) product that incorporates software drivers, you may access our
web site to verify and/or download the latest driver versions. The web address for driver downloads is:
http://www.eads-nadefense.com/downloads
If you have any questions about software driver downloads or our privacy policy, please contact us at:
[email protected]
WARRANTY STATEMENT
All EADS North America Test and Services products are designed to exacting standards and manufactured in
full compliance to EADS AS9100B Quality Management System processes.
This warranty does not apply to defects resulting from any modification(s) of any product or part without
EADS North America Test and Services express written consent, or misuse of any product or part. The
warranty also does not apply to fuses, software, non-rechargeable batteries, damage from battery leakage, or
problems arising from normal wear, such as mechanical relay life, or failure to follow instructions.
This warranty is in lieu of all other warranties, expressed or implied, including any implied warranty of
merchantability or fitness for a particular use. The remedies provided herein are buyer’s sole and exclusive
remedies.
For the specific terms of your standard warranty, contact EADS North America Test and Services Customer
Support. Please have the following information available to facilitate service.
1. Product serial number
2. Product model number
3. Your company and contact information
You may contact Customer Support by:
E-Mail: [email protected]
Telephone: [phone] (USA)
Fax: [phone] (USA)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

RETURN OF PRODUCT
Authorization is required from EADS North America Test and Services before you send us your product or
sub-assembly for service or calibration. Call or contact Customer Support at 1-800-722-3262 or 1-949-859-
8999 or via fax at 1-949-859-7139. We can also be reached at: [email protected].
If the original packing material is unavailable, ship the product or sub-assembly in an ESD shielding bag and
use appropriate packing materials to surround and protect the product.
PROPRIETARY NOTICE
This manual is copyright by EADS North America Test and Services, a division of EADS North America, Inc.
Printed in the United States of America. All rights reserved. This book or parts thereof may not be
reproduced in any form without written permission of the publisher
This document and the technical data herein disclosed, are proprietary to EADS North America Test and
Services, and shall not, without express written permission of EADS North America Test and Services, be
used in whole or in part to solicit quotations from a competitive source or used for manufacture by anyone
other than EADS North America Test and Services. The information herein has been developed at private
expense, and may only be used for operation and maintenance reference purposes or for purposes of
engineering evaluation and incorporation into technical specifications and other documents which specify
procurement of products from EADS North America Test and Services.
DISCLAIMER
Buyer acknowledges and agrees that it is responsible for the operation of the goods purchased and should
ensure that they are used properly and in accordance with this document and any other instructions provided
by Seller. EADS North America Test and Services products are not specifically designed, manufactured or
intended to be used as parts, assemblies or components in planning, construction, maintenance or operation
of a nuclear facility, or in life support or safety critical applications in which the failure of the EADS North
America Test and Services product could create a situation where personal injury or death could occur.
Should Buyer purchase EADS North America Test and Services product for such unintended application,
Buyer shall indemnify and hold EADS North America Test and Services, its officers, employees, subsidiaries,
affiliates and distributors harmless against all claims arising out of a claim for personal injury or death
associated with such unintended use.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

FOR YOUR SAFETY
Before undertaking any troubleshooting, maintenance or exploratory procedure, read carefully the
WARNINGS and CAUTION notices.
This equipment contains voltage hazardous to
human life and safety, and is capable of inflicting
personal injury.
If this instrument is to be powered from the AC line (mains) through an autotransformer,
ensure the common connector is connected to the neutral (earth pole) of the power
supply.
Before operating the unit, ensure the conductor (green wire) is connected to the ground
(earth) conductor of the power outlet. Do not use a two-conductor extension cord or a
three-prong/two-prong adapter. This will defeat the protective feature of the third
conductor in the power cord.
Maintenance and calibration procedures sometimes call for operation of the unit with
power applied and protective covers removed. Read the procedures and heed warnings
to avoid “live” circuit points.
Before operating this instrument:
1. Ensure the proper fuse is in place for the power source to operate.
2. Ensure all other devices connected to or in proximity to this instrument are properly grounded or
connected to the protective third-wire earth ground.
If the instrument:
- fails to operate satisfactorily
- shows visible damage
- has been stored under unfavorable conditions
- has sustained stress
Do not operate until performance is checked by qualified personnel.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

DOCUMENT CHANGE HISTORY
Revision Date Description of Change
A 06/12/2009 Document Control release
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

This page was intentionally left blank.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Table of Contents
1 Introduction ..................................................................1-1
2 Specifications.................................................................2-1
2.1 I/O Module...............................................................2-1
2.2 Electrical ................................................................2-1
2.3 Timing C aracteristics......................................................2-1
2.4 Environmental ............................................................2-2
2.5 Size ....................................................................2-3
2.6 Power Requirements.......................................................2-3
3 Jumpers/Installation............................................................3-1
3.1 Test Point Description ......................................................3-1
3.2 Jumper Description ........................................................3-1
3.2.1 Backplane +5V Select (Factory Default) ....................................3-1
3.2.2 Front Panel +5V Select .................................................3-1
3.3 Installation ...............................................................3-2
3.4 Termination Options .......................................................3-2
4 Functional Description ..........................................................4-1
4.1 Stimulus Logic ............................................................4-2
4.1.1 Enable Select ........................................................4-3
4.1.2 Stimulus Memories ....................................................4-3
4.1.3 Output Mode Select....................................................4-3
4.1.4 Output Mode Logic ....................................................4-4
4.1.4.1 Driver Enable Logic................................................4-5
4.1.4.2 Output Register Control ............................................4-5
4.1.5 Output Mode Timing ...................................................4-6
4.1.6 Output Mode Timing Examples ...........................................4-7
4.1.6.1 Output Data Format Timing..........................................4-7
iii
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4.1.6.2 Output Algorit mic Increment Function.................................4-8
4.1.6.3 Output Serial S ift Function .........................................4-9
4.1.6.4 Output Multiplex S ift Function .......................................4-10
4.2 Response Logic...........................................................4-11
4.2.1 Strobe Select.........................................................4-12
4.2.2 Address Logic ........................................................4-13
4.2.3 Response Memories ...................................................4-13
4.2.4 Input Mode Logic......................................................4-14
4.2.4.1 Input Comparator .................................................4-15
4.2.4.2 Input Register Control ..............................................4-16
4.2.5 Input Mode Timing.....................................................4-17
4.2.5.1 Input Mode 1 Timing ...............................................4-17
4.2.5.2 Input Mode 2 Timing ...............................................4-18
4.2.5.3 Input Mode 3 Timing ...............................................4-20
4.2.5.4 Input Mode 4 Timing ...............................................4-21
4.2.6 Input Mode Timing Examples ............................................4-23
4.2.6.1 Input Serial S ift Timing ............................................4-23
4.2.6.2 Input Multiplex S ift Timing ..........................................4-24
4.3 Driver/Receiver Logic Description .............................................4-26
5 Memory Data Mapping..........................................................5-1
Appendix A Glossary of Terms ....................................................A-1
Appendix B Function Code Map ...................................................B-1
Appendix C SR192 Clock Timing...................................................C-1
Appendix D Block Diagram .......................................................D-1
iv
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

List of Figures
Figure 3-1 Test Point/Jumper Locations..............................................3-1
Figure 3-2 SR192 Mot erboard Side View ............................................3-2
Figure 4-1 SR122 Block Diagram ...................................................4-1
Figure 4-2 Stimulus Logic Block Diagram.............................................4-2
Figure 4-3 Output Mode Logic Block Diagram .........................................4-4
Figure 4-4 Output Signal Timing....................................................4-6
Figure 4-5 RTC Timing Example ...................................................4-7
Figure 4-6 INCREMENT2 Timing Example ...........................................4-8
Figure 4-7 Serial S ift Timing ......................................................4-9
Figure 4-8 Multiplex S ift Timing ...................................................4-10
Figure 4-9 Response Logic Block Diagram ...........................................4-11
Figure 4-10 Input Address Logic Block Diagram .......................................4-13
Figure 4-11 Response Memory Logic................................................4-14
Figure 4-12 Error Memory Logic....................................................4-14
Figure 4-13 Input Mode Logic......................................................4-15
Figure 4-14 Input Mode 1 Timing Restrictions .........................................4-17
Figure 4-15 Input Mode 1 Timing ...................................................4-18
Figure 4-16 Input Mode 2 Timing ...................................................4-19
Figure 4-17 Input Mode 1 Timing Restrictions .........................................4-19
Figure 4-18 Input Mode 3 Timing Restrictions .........................................4-20
Figure 4-19 Input Mode 3 Timing ...................................................4-21
Figure 4-20 Input Mode 4 Timing ...................................................4-22
Figure 4-21 Input Mode 4 Timing Restrictions .........................................4-22
Figure 4-22 Serial Mode Input Timing Example ........................................4-24
Figure 4-23 Multiplex Mode Input Timing Example......................................4-25
Figure 4-24 SR122 Driver/Receiver Configuration ......................................4-26
v
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

List of Tables
Table 2-1 Stimulus/Response Timing C aracteristics ...................................2-2
Table 2-2 SR122 Voltage Requirements .............................................2-3
Table 3-1 SR122 Test Point Description..............................................3-1
Table 4-1 Stimulus Memory Description..............................................4-5
Table 4-2 TSOUT4/STIM_LOAD Register Control ......................................4-6
Table 4-3 Output Data Format Timing Description ......................................4-7
Table 4-4 Output Algorit mic Timing Description .......................................4-8
Table 4-5 Output Serial S ift Timing Description .......................................4-9
Table 4-6 Output Multiplex Timing Description ........................................4-10
Table 4-7 Input/S ift Strobe Functions ...............................................4-12
Table 4-8 Addressing Mode Descriptions.............................................4-13
Table 4-9 Expect, Mask, Record, Error and Response Memory Description ..................4-14
Table 4-10 Input Comparator Results................................................4-15
Table 4-11 Input Register Control Signals ............................................4-16
Table 4-12 Input Mode 1 Timing Description ..........................................4-18
Table 4-13 Input Mode 2 Timing Description ..........................................4-20
Table 4-14 Input Mode 3 Timing Description ..........................................4-21
Table 4-15 Input Mode 4 Timing Description ..........................................4-23
Table 4-16 Serial Mode Input Timing Description.......................................4-24
Table 4-17 Multiplex Mode Input Timing Description ....................................4-26
Table 5-1 Stimulus Memory Data To Front Panel Mapping ...............................5-1
vi
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

1Introduction
Talons SR192 digital test module is a modular VXI stimulus/response system. T e SR192 mot erboard
is a two slot, C size module w ic ouses up to 12 I/O modules. I/O modules are designed to provide
eit er 8/16 stimulus/response c annels for a total of 96 or 192 c annels. Modules provide many logic op-
tions suc as fixed voltage TTL, ECL, RS485/422 or variable voltage. T e I/O c annels may also be
single-ended or double-ended (differential) logic.
Multiple SR192s may be linked in a master/slave configuration to provide up to 1152 c annels in a single
VXI 13-slot c assis.
T is manual is for t e SR122 I/O module. T e SR122 is an 8 c annel, dynamic, double ended
RS485/422 I/O module. Eac SR122 as a single 8 c annel group allowing up to 12 groups in a single
SR192. T e eig t differential I/O c annels are bi-directional using a tristate memory to control direction
on a per pin basis. T e output enable and input strobe signals are assigned in groups of eig t c annels.
T e SR122 utilizes a five memory arc itecture, OUTPUT, TRISTATE, EXPECT, MASK and RECORD.
T is arc itecture allows t e user to perform real-time error detection and recording. Eac memory is
128K bits per c annel.
T e SR122 is a multi-function I/O module. Talons multi-function I/O modules provide several operating
modes in addition to t e normal parallel stimulus/response operation. T ese special operating modes
are:
Multiplex T is mode allows t e user to program one or more 8 c annel groups to
operate as 4 c annels wit double t e memory and twice t e data rate.
Serial T is mode allows t e user to send and receive data t roug a single
c annel of t e eig t c annel group. Adjacent eig t c annel groups may
be linked to provide for 16, 32, etc., bit words. T is mode provides t e
user wit t e ability to easily emulate serial busses as well as increasing
t e memory dept ..
Algorit mic T is mode provides a bit s ift function t at operates on t e data stored in
t e output register. Using t is mode an engineer can easily generate in-
cremented data suc as addresses for RAM or ROM testing wit out using
I/O memory. T e eig t c annel groups may be linked to provide wider
data words.
Data Format T is operating mode provides t e standard formatting modes, RTO, RTC,
RTZ and HOLD. Eac eig t c annel group may be assigned t e same or
a different format from t e ot er groups.
T e layout of t is manual is in five sections described below:
1. Introduction T is section.
2. Specifications Electrical and environmental specifications of t e SR122.
3. Jumpers/Installation Description of t e jumpers and installation of t e SR122.
4. Functional Description Functional description of t e SR122 ardware.
5. Memory Data Mapping Memory to c annel mapping
In addition five Appendices are included:
A. Glossary of Terms Definition of terms used in t is manual.
B. Function Code Map Hardware register description.
C. Programming Examples SR192 stimulus/response examples using t e SR122.
D. SR192 Clock Timing SR192 clock timing specifications.
E. SR122 Block Diagram SR192/SR122 system block diagram.
1-1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

2Specifications
T e following sections list t e specifications of t e SR122 I/O module.
2.1 I/O Module
Number of differential channels.............................................................................................................................. 8
Number of Stimulus Memories ............................................................................................................................... 2
OUTPUT, TRISTATE
Number of Res onse Memories............................................................................................................................. 3
EXPECT, MASK, RECORD
Data Format Channel Modes
Non Return ..................................................................................................................................... HOLD
Return to Zero ................................................................................................................................... RTZ
Return to One ................................................................................................................................... RTO
Return to Com liment ....................................................................................................................... RTC
Algorithmic Increment Channel Modes
Increment by one .............................................................................................................. INCREMENT1
Increment by two............................................................................................................... INCREMENT2
Increment by four.............................................................................................................. INCREMENT4
Increment by eight ............................................................................................................ INCREMENT8
Data Shift Channel Modes
Shift by one.................................................................................................................................. SERIAL
Shift by four .......................................................................................................................... MULTIPLEX
Memory de th er channel (Data format and increment modes) ................................................................. 131072
Memory de th er channel (MULTIPLEX) ................................................................................................... 262144
Memory de th er channel (SERIAL)......................................................................................................... 1048576
Maximum stimulus data rate ........................................................................................................................ 25 MHz
Stimulus grou enable signal (common to all channels) ........................................................................................ 7
Internal (TSENABLE1, TSENABLE2, ALWAYS, NEVER) ..................................................................... 4
External (FCNTL1, FCNTL2, CSTROBE) .............................................................................................. 3
Stimulus grou enable resolution......................................................................................................... one TS_CLK
Stimulus grou enable lacement ................................................................................ 0-15ns with 5ns increments
Maximum res onse data rate....................................................................................................................... 25 MHz
Res onse in ut strobe signal (common to all channels) ........................................................................................ 5
Internal (TSSTROBE1, TSSTROBE2) ...................................................................................................2
External (FCNTL1, FCNTL2, CSTROBE) .............................................................................................. 3
Res onse in ut strobe resolution ........................................................................................................ one TS_CLK
Res onse in ut strobe lacement............................................................................... 0-15ns* with 5ns increments
Res onse shift strobe signal (MULTIPLEX/SERIAL mode) ................................................................................... 4
Internal (TSSTROBE1, TSSTROBE2) ...................................................................................................2
External (FCNTL1, FCNTL2).................................................................................................................. 2
Res onse shift strobe resolution.......................................................................................................... one TS_CLK
Res onse shift strobe lacement ................................................................................ 0-15ns* with 5ns increments
Out ut Driver/In ut Receiver ................................................................................................... National DS3695AM
* 0-5ns for serial numbers <94
2.2 Electrical
Differential Driver Out ut Voltage (Unloaded).............................................................................................. 5V max
Differential Driver Out ut Voltage (Loaded 27 ohm, RS-485) .................................................................... 1.5V min
Differential Driver Out ut Voltage (Loaded 50 ohm, RS-422) ....................................................................... 2V min
Differential Receiver Threshold ................................................................................................... -2V min, +2V max
Differential Receiver Hysteresis ................................................................................................................ 70mV ty
Differential Receiver common mode range ........................................................................................... -7V to +12V
In ut/Out ut Im edance ........................................................................................................................... 120 ohms
2.3 Timing Characteristics
In order to specify t e timing c aracteristics of t e SR122, t e TS_CLK signal generated by t e timing
module will be used as t e reference signal. Appendix D of t is manual gives t e timing relations ip be-
tween t e external input clocks (EXCLK1 and EXCLK2), TS_CLK and external output clocks (CLOCKA
and CLOCKB).
2-1
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Table 2-1 lists t e typical timing c aracteristics of t e SR122s stimulus/response logic.
2.4 Environmental
Temperature Range
O erating ........................................................................................................................................... 0
o
C to +50
o
C
Storage ........................................................................................................ -40
o
C to +71
o
C (RH not controlled)
Altitude
O erating ............................................................................................................................... Sea level to 10,000 ft.
Storage ............................................................................................................................... Sea level to 40,000 ft.
Relati e Humidity (non condensing)
0
o
C to +10
o
C ....................................................................................................................................... not controlled
+11
o
C to +30
o
C...................................................................................................................................... 95+/-5%RH
+31
o
C to +40
o
C...................................................................................................................................... 75+/-5%RH
+41
o
C to +50
o
C...................................................................................................................................... 45+/-5%RH
2-2
Parameter and Description From To Typ
(ns) Note
timulus pecifications
Data propagation TS_CLK CH OUTPUT 21-23 4
Tristate propagation enabled TS_CLK CH OUTPUT 22-24 4
Tristate propagation disabled TS_CLK CH OUTPUT 34-36 4
Internal lo k to group enable true TS_CLK GROUP ENABLE 20-24 1,2
Internal lo k to group enable false TS_CLK GROUP ENABLE 18-22 1,2
Field ontrol one to group enable true FCNTL1-TTL GROUP ENABLE 22-31 1,2
FCNTL1-PROG 29-37 1,2
FCNTL1-DIFF 54-67 1,2
Field ontrol one to group enable false FCNTL1-TTL GROUP ENABLE 19-26 1,2
FCNTL1-PROG 28-35 1,2
FCNTL1-DIFF 54-61 1,2
Field ontrol two to group enable true FCNTL2 GROUP ENABLE 25-33 1,2
Field ontrol two to group enable false FCNTL2 GROUP ENABLE 21-27 1,2
Card strobe to group enable true CSTROBE GROUP ENABLE 18-21 1,2
Card strobe to group enable false CSTROBE GROUP ENABLE 13-16 1,2
Group enable to valid data GROUP ENABLE CH OUTPUT valid 16-18 1
Group enable to invalid data GROUP ENABLE CH OUTPUT invalid 28-30 1
Response pecifications
Re eiver propagation CH INPUT RESP VALID 32-34 4
Internal lo k to response strobes TS_CLK INPUT/SHIFT
STROBE 12-16 1
Field ontrol one to response strobes FCNTL1-TTL INPUT/SHIFT
STROBE
14-23 1.3
FCNTL1-PROG 21-29 1,3
FCNTL1-DIFF 46-57 1,3
Field ontrol two to response strobes FCNTL2 INPUT/SHIFT
STROBE 17-25 1,3
Card strobe to response strobe CSTROBE INPUT/SHIFT
STROBE 7-10 1,3
Data valid setup to response strobes RESP VALID INPUT/SHIFT
STROBE 5-
Note 1: The range of delay accounts for the number of modules installed and their osition in the SR192 system.
Note 2: Values listed are with grou enable delay set to zero.
Note 3: Values listed are with strobe delay set to zero.
Note 4: The range of delay accounts for the osition of the SR122 in the SR192 system.
Table 2-1 Stimulus/Response Timing C aracteristics
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

2.5 Size
Dimension
4.93 cm x 22.61 cm (1.94 x 8.9)
Weight
.074 kg (2.6 oz)
2.6 Power Requirements
T e power requirements listed in table 2-2 are for a single SR122 wit t e drivers unloaded.
2-3
Voltage Peak Current Dynamic Current Note
+5V 1.35A 0.4A 1
-5.2V 0 0 -
-2V 0 0 -
+12V 0 0 -
-12V 0 0 -
+24V 0 0 -
-24V 0 0 -
V+ 0 0 1
V- 0 0 -
Note 1: The +5V can be su lied from either the VXI chassis or from V+ on the front anel J10 connector, see section 3.2.
Table 2-2 SR122 Voltage Requirements
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

3Jumpers/Installation
T e SR122 I/O module requires firmware revision 1.28 or later for proper operation. Contact Talon Instru-
ments for information on firmware upgrades.
Figure 3-1 below is a locator diagram for test points and jumpers located on t e SR122.
3.1 Test Point Description
Table 3-1 describes t e test points on t e SR122 I/O module.
3.2 Jumper Description
T e following sections describe t e SR122 jumper options.
3.2.1 Backplane +5V Select (Factory Default)
T is jumper block connects t e VXI Backplane +5V to t e SR122s +5V Vcc plane.
For Rev. A PCB E1-E2 and E3-E4 installed connects +5V to t e VXI Backplane.
For Rev. B PCB E15-E19 and E16-E20 installed connects +5V to t e VXI Backplane.
3.2.2 Front Panel +5V Select
T is jumper block connects t e V+ front panel J10 signal to t e SR122s +5V Vcc plane.
For Rev. A PCB E13-E14 and E15-E16 installed connects +5V to t e front panel.
For Rev. B PCB E17-E21 and E18-E22 installed connects +5V to t e front panel.
T is setting would be used if t e VXI c assis +5V power supply cannot provide sufficient power to t e
SR122s.
3-1
J1 J2
FRONT
RP1
J1 J2
FRONT
RP1
REV. A PCB
REV. B PCB
Figure 3-1 Test Point/Jumper Locations
Test Point Mnemonic Description
TP1 GND1 Signal Ground
Table 3-1 SR122 Test Point Description
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

CAUTION
Make sure the J10 power is applied prior to VXI chassis power.
WARNING
Make sure the Backplane +5V jumpers (E1-E2 and E3-E4 for Re A
PCB, E15-E19 and E16-E21 for Re . B PCB) are disconnected prior
to VXI chassis power. A trace may be present (factory default)which
connects the jumpers.
3.3 Installation
Eac SR192 mot erboard can ouse up to 12 I/O modules. I/O modules are installed in mot erboard
slots DRA1 t roug DRA6 and DRB1 t roug DRB6, see Figure 3-2.
Perform t e following steps to add or replace an I/O module:
Step 1. Using ESD protocols remove t e SR192 from t e VXI c assis.
Step 2. Remove t e top cover screws, refer to Figure 3-2.
Step 3. If replacing an I/O module, remove it by grasping at eac corner and gen-
tly rocking forward and back w ile pulling it away from t e mot erboard.
Step 4. Insert t e I/O module in t e desired DRA or DRB module slot, Figure 3-2,
by lining up t e J1 and J2 connectors wit t e mot erboard connectors
and gently pus ing down. All SR192 modules are keyed along t e asso-
ciated mating connector. If t e module cannot be inserted, make sure
you are inserting t e module into t e correct slot, c eck for bent pins and
make certain t e pins are aligned wit t e mating connector on t e mot -
erboard.
CAUTION
Although the modules and the associated mating connectors ha e
been keyed, it is possible to force a module into an incorrect slot.
3.4 Termination Options
T e SR122 is s ipped from t e factory wit 120 Ω balanced termination resistors on eac c annel. T ese
eig t resisters are installed in RP1, see figure 3-1.
RP1 is a sixteen pin DIP resister package, Bourns part number 4116R-001-121. T e resistor pack can be
removed or c anged by t e user.
3-2
Front
Back
VXI
TOP COVER SCREWS
COVER SCREW
COVER SCREW COVER SCREW
Bottom
Top
Back
Front
TSIO
CPU DAC TSB DRB6 DRB5 DRB4 DRB3 DRB2 DRB1 DRA1DRA2DRA3DRA4DRA5
DRA6TSA
Figure 3-2 SR192 Mot erboard Side View
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

4Functional Description
T e SR122, along wit all t e ot er I/O modules, is controlled t roug t e SR192 timing modules. Con-
trol signals are generated by t e timing module w ic allow t e SR122 to output stimulus data and record
response data w ile t e timing module is running. W en t e timing module is not running, idle, t e CPU
module or VXI controller can program or query t e stimulus/response memories on t e SR122.
Figure 4-1 depicts t e SR122 module in relation to ot er components of t e SR192.
T e following list describes t e functional blocks s own in figure 4-1 above.
1. CPU The SR192 CPU module selects whether the local rocessor or VXI Back lane has
control of the system bus, SADDR and SDATA.
2. TIMING MODULE One of two SR192 timing modules, SR100 or SR101.
3. STIMULUS LOGIC The memories, registers and control bits that generate UUT in ut data.
4. RESPONSE LOGIC The memories, registers and control bits that record UUT out ut data.
5. DRIVERS/RECEIVERS The driver/receiver ICs and terminators that connect the STIMULUS/RESPONSE logic
to the UUT.
6. FRONT PANEL The mating connectors through which a hysical connection is made to the UUT.
T e following list describes t e signals s own in figure 4-1 above.
1. INT_CLK Selected internal timing module clock from the motherboard (10MHz, 20MHz or
50MHz).
2. EXT_CLK Selected external clock from the front anel J8 connector (EXCLK1 or EXCLK2)
3. VADDR The address bus from the VXI Back lane.
4. VDATA The data bus from the VXI Back lane.
5. SADDR Either the local micro rocessor or VADDR bus.
6. SDATA Either the local micro rocessor or VDATA bus.
7. TSOUT4 Timing module signal used to enable the selected channel mode function.
8. TSENABLE Two timing module signals which can be selected as the grou enable for the stimulus
data.
9. TSSTROBE Two timing module signals which can be selected to strobe res onse data.
10. STIM_LOAD Timing module signal used to enable data from the out ut and tristate memories into
the stimulus register and clock an in ut address delay register.
11. ADEL_CLK Timing module signal used to delay the memory address to the record memory.
12. FMA Field Memory Address. This grou of signals is generated by the timing module and
broadcast to the I/O modules. The FMA selects the stimulus/res onse memory word.
13. TS_CLK The timing module clock ( EXT_CLK or INT_CLK).
4-1
CPU
SR122
TSENABLE
FRONT
PANEL
TIMING
MODULE
TSOUT4
TSSTROBE
STIM_LOAD
ADEL_CLK
FCNTL
CSTROBE
FMA
SADDR
SDATA
VADDR
VDATA
SERIAL OUT ENABLE
SERIAL IN ENABLE
CARRY OUT
CARRY IN
SERIAL OUT RESP
SERIAL IN RESP
I/O CHANNELS
J8
J1-J6
J1-J6
RESPONSE
LOGIC
STIMULUS
LOGIC
ERROR
COMPARE
TS_CLK
SERIAL OUT DATA
SERIAL IN DATA
SEC 4.1
SEC 4.3
SEC 4.2
EXT_CLK
INT_CLK
DRIVERS
RECEIVERS
Figure 4-1 SR122 Block Diagram
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com