Giga-tronics 7026 User manual

Manual 07507026 Model 7026
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Operation Manual
Model 7026
(1x32) 2-wire Multiplexer
91000200

Manual 07507026 Model 7026
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Operation Manual
All technical data and specifications in this publication are subject to change without prior notice and do not
represent a commitment on the part of Giga-tronics, Incorporated.
© 2011 Giga-tronics Incorporated. All rights reserved. Printed in the U.S.A.
CONTACT INFORMATION
Giga-tronics, Incorporated
4650 Norris Canyon Road
San Ramon, California 94583
Telephone: [phone] (only within the United States)
925.328.4650
Fax: [phone]
On the Internet: www.gigatronics.com
Warranty
Giga-tronics Series 7000 Switching Modules are warranted against
defective materials and workmanship for three yearsfrom date of shipment,
or as detailed in the warranty section of this manual. Giga-tronics will, at its
option, repair or replace products that are proven defective during the
warranty period. This warranty DOES NOT cover damage resulting from
improper use, nor workmanship other than Giga-tronics service. There is no
implied warranty of fitness for a particular purpose, nor is Giga-tronics liable
for any consequential damages. Specification and price change privileges are
reserved by Giga-tronics.

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Operation Manual
Regulatory compliance information
This product complies with the essential requirements of the following applicable European Directives,
and carries the CE mark accordingly.
89/336/EEC and 73/23/EEC
EMC Directive and Low Voltage Directive
EN61010-1 (1993)
Electrical Safety
EN61326-1 (1997)
EMC –Emissions and Immunity
Manufacturer’s Name:
Manufacturer’s Address
Giga-tronics, Incorporated
4650 Norris Canyon Road
San Ramon, California 94583
U.S.A.
Type of Equipment:
Model Series Number
Switching Module
7026
Declaration of Conformity on file. Contact Giga-tronics at the following;
Giga-tronics, Incorporated
4650 Norris Canyon Road
San Ramon, California 94583
Telephone: [phone] (only within the United States)
925.328.4650
Fax: [phone]

Manual 07507026 Model 7026
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Operation Manual
Record of Changes to This Manual
Use the table below to maintain a permanent record of changes to this document. Corrected
replacement pages are issued as Technical Publication Change Instructions (TPCI). When you are
issued a TPCI, do the following:
1. Insert the TPCI at the front of the manual binder.
2. Remove the pages from the manual binder that are noted in the TPCI.
3. Replace the page(s) removed in the previous step with the corrected page(s).
4. Record the changes in the table below.
TPCI
Number
TPCI Issue
Date
Date Entered
Comments

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Operation Manual
Revision History
Revision
Description of Change
Chg Order #
Approved By
A
Initial Release 2/02
JL
B
Updated
C
Reformatted 5/12
RCW

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Operation Manual
Contents
Contents ....................................................................................................................................................... 6
Chapter 1 Introduction................................................................................................................................. 7
1.1 Safety and Manual Conventions ........................................................................................................ 7
1.1.1 Product Reference ...................................................................................................................... 7
1.1.2 Personal Safety Alert................................................................................................................... 7
1.1.3 Equipment Safety Alert............................................................................................................... 7
1.1.4 Notes........................................................................................................................................... 7
1.1.5 Electrical Safety Precautions....................................................................................................... 7
Chapter 2 Configuration Table .......................................................................Error! Bookmark not defined.
Chapter 3 Functional Description................................................................................................................. 8
3.1 Introduction........................................................................................................................................ 9
3.2 General Description..............................................................................Error! Bookmark not defined.
Chapter 4 Block Diagram............................................................................................................................ 10
Chapter 6 Specifications............................................................................................................................. 11
Chapter 7 Register Map..................................................................................Error! Bookmark not defined.
Chapter 8 Front Panel Connector Pins ...........................................................Error! Bookmark not defined.

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Operation Manual
Chapter 1 Introduction
1.1 Safety and Manual Conventions
This manual contains conventions regarding safety and equipment usage as described below.
1.1.1 Product Reference
Throughout this manual, the term “Common Core Switching Platform, Series 8800” refers to all models of
within the series, unless otherwise specified.
1.1.2 Personal Safety Alert
WARNING: Indicates a hazardous situation which, if not avoided, could result in death
or serious injury.
1.1.3 Equipment Safety Alert
CAUTION: Indicates a situation which can damage or adversely affect the product or
associated equipment.
1.1.4 Notes
Notes are denoted and used as follows:
NOTE: Highlights or amplifies an essential operating or maintenance procedure, practice, condition or
statement.
1.1.5 Electrical Safety Precautions
Any servicing instructions are for use by service-trained personnel only. To avoid personal injury, do not
perform any service unless you are qualified to do so.
For continued protections against fire hazard, replace the AC line fuse only with a fuse of the same current
rating and type. Do not use repaired fuses or short circuited fuse holders.
WARNING
!
CAUTION

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Operation Manual
Chapter 2 Configuration Table
Module
PL91000200 : Top Assembly BOM
Assy91000200 : Top Assembly
PL85003760 : PWA BOM
Assy85003760 : PWA Assembly
SCH85003760 : PWA Schematic

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Chapter 3 Functional Description
3.1 Introduction
This card assembly contains a 1x32 two-wire switch tree, which uses DPST 2 Amp relays. The card assembly is
completely compatible with the National Instruments PXI specification which allows the unit to be easily used
in complex PXI switching systems.

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Operation Manual
Chapter 4 Block Diagram
Analog Groundplane
32

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Operation Manual
Chapter 6 Specifications
Electrical:
Bandwidth: 26 MHz
Crosstalk: -22dB @ 10MHz
Max. switching power: 60 W or 62.5VA
Max. switching current : 2 Amp
Max. switching voltage: 220 VDC or 250 VAC
Min. mech. life expectancy: 500K cycles
Initial Contact Resistance: < 280mΩ
Mechanical:
Size: 3U PXI
Width: 0.8 inches
Height: 5.2 inches
Length: 6.5 inches
Weight: 0.5 lbs.
Connector: Positronic, 34 Position, SMPL34M0T0LB
Mating Connectors: ASCOR Installation Kit P/N 89800570
Environmental Specifications
Temperature:
Operating: 0º to 55ºC
Storage: - 40º to 75ºC
Relative Humidity:
Operating: 0 to 90% non-condensing
Storage: 0 to 95% non-condensing

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Operation Manual
Chapter 7 Programming
The Model 7026 is a PXI register based card assembly designed for use with the National Instruments PXI
specification. You can program the Model 7026 in 8, 16 or 32 bit wide data format. By way of your PXI
controller, you can write the data to the appropriate register, shown on the register map, for the relay or
relays in the register that is being closed. When the data bit is true, the relay chosen is closed. You can
determine relay state in a register by simply reading the desired register. Data read back represents the value
of the desired register. In addition, you can read back the coil state to verify that the coil is driven correctly by
the program register. This scenario verifies that the program register has correctly controlled the relay coil.
A register map can be organized to show the relay designation at each register, followed by the register’s
functionality and the path connections to the front panel. PXI automatically assigns the starting address of the
card, called Bar0. Bar0 becomes the starting address of the first register. Each address location controls 8 bits.
The control functions using 16 format are shown in the illustration below.
Programming of the Model 7026 is very straight forward. The module is organized as a 1x32, two wire, 2 amp
general purpose relay board. The location of the first register is assigned by the PCI enumerator. This is
designated as "Bar0" or the starting address of the card. The program registers using 16 bit format are located
as follows:
Register #1 : read/write function address = Bar0 + 0000h
coil read back address = Bar0 + 0008h
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RELAY
K16
K15
K14
K13
K12
K11
K10
K09
K08
K07
K06
K05
K04
K03
K02
K01
Register #2 : read/write function address = Bar0 + 0002h
coil read back address = Bar0 + 000Ah
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RELAY
K32
K31
K30
K29
K28
K27
K26
K25
K24
K23
K22
K21
K20
K19
K18
K17

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Operation Manual
Chapter 8 Connector Pin Assignments
J1
J2
CONNECTOR
RELAY
FUNCTION
CONNECTOR
RELAY
FUNCTION
J1-A
-
CHANNEL A
J2-A
-
EGND
J1-B
-
CHANNEL B
J2-B
-
AGND
J1-C
K16
J1-A
J2-C
K32
J1-A
J1-D
K16
J1-B
J2-D
K32
J1-B
J1-E
K15
J1-A
J2-E
K31
J1-A
J1-F
K15
J1-B
J2-F
K31
J1-B
J1-H
K14
J1-A
J2-H
K30
J1-A
J1-J
K14
J1-B
J2-J
K30
J1-B
J1-K
K13
J1-A
J2-K
K29
J1-A
J1-L
K13
J1-B
J2-L
K29
J1-B
J1-M
K12
J1-A
J2-M
K28
J1-A
J1-N
K12
J1-B
J2-N
K28
J1-B
J1-P
K11
J1-A
J2-P
K27
J1-A
J1-R
K11
J1-B
J2-R
K27
J1-B
J1-S
K10
J1-A
J2-S
K26
J1-A
J1-T
K10
J1-B
J2-T
K26
J1-B
J1-U
K09
J1-A
J2-U
K25
J1-A
J1-V
K09
J1-B
J2-V
K25
J1-B
J1-W
K08
J1-A
J2-W
K24
J1-A
J1-X
K08
J1-B
J2-X
K24
J1-B
J1-Y
K07
J1-A
J2-Y
K23
J1-A
J1-Z
K07
J1-B
J2-Z
K23
J1-B
J1-AA
K06
J1-A
J2-AA
K22
J1-A
J1-BB
K06
J1-B
J2-BB
K22
J1-B
J1-CC
K05
J1-A
J2-CC
K21
J1-A
J1-DD
K05
J1-B
J2-DD
K21
J1-B
J1-EE
K04
J1-A
J2-EE
K20
J1-A
J1-FF
K04
J1-B
J2-FF
K20
J1-B
J1-HH
K03
J1-A
J2-HH
K19
J1-A
J1-JJ
K03
J1-B
J2-JJ
K19
J1-B
J1-KK
K02
J1-A
J2-KK
K18
J1-A
J1-LL
K02
J1-B
J2-LL
K18
J1-B
J1-MM
K01
J1-A
J2-MM
K17
J1-A
J1-NN
K01
J1-B
J2-NN
K17
J1-B
Notes : AGND = Analog Ground ( Not connected to Digital Ground )
EGND = Chassis Ground ( Connected only to front panel )