Giga-tronics 7027 User manual

Manual 07507027 Model 7027
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Operation Manual
Model 7027
4(1x8) 2-wire Multiplexers
91000210

Manual 07507027 Model 7027
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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
7027
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]

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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
PL91000210 : Top Assembly BOM
ASSY91000210 : Top|Assembly
PL85004130 : PWA BOM
ASSY85004130 : PWA Top Assembly
SCH85004130 : PWA Schematic

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Chapter 3 Functional Description
3.1 Introduction
The 7027 PXI PC card assembly contains 40 DPST (dual Form A) relays. It is grouped into four 1x8 trees with
additional relays to tie the trees together for 2 wire, 4 wire and 6 wire applications. This is ideal for DMM
applications where 2/4/guarded measurements are needed. The card assembly fits in a CompactPCI or PXI
series chassis. The assembly is also compatible with the National Instrument PXI specification, which allows
ease of design for complex switch systems.

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Operation Manual
Chapter 4 Block Diagram
Analog Groundplane
1x8
1x8 or 1x16
1x8
1x8 or 1x16 or
1x24 or 1x32

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Chapter 6 Specifications
Electrical:
Bandwidth: 73 MHz
Crosstalk: -42dB @ 10MHz
-30dB @ 50MHz
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: < 60mΩ
Mechanical:
Size: 3U PXI
Width: 0.8 inches
Height: 5.2 inches
Length: 6.5 inches
Weight: 0.5 lbs.
Connector: J1 = Positronic type SMPL44M0T0LB
J2 = Positronic type SMPL50M0T0LB
Mating Connectors: ASCOR Installation Kit P/N 89800860
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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Chapter 7 Programming
The Model 7027 is a PXI register based card assembly design to be used with the National Instrument PXI
specification. The Model 7027 can be programmed in 8, 16 or 32 bit wide data format. Through your PXI
controller, write the data to the appropriate register as 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 will be closed. The state of the relays
in a register can be determined by 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.
The register map is organized to show the relay designation in each register. It is followed by the register’s
functionality and the path connections to the front panel. PXI will automatically assign the starting address of
the card, called Bar0. This will be the starting address of the first register. Each address location controls 8
bits. Shown are the control functions using 16 format.
Programming of the Model 7027 is very straight forward. The module is organized as a quad 1x8 trees with
additional relays to combine the tree for 2 wire, 4 wire and 6 wire applications. 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
Register #2 : read/write function address = Bar0 + 0002h
coil read back address = Bar0 + 000Ah
Register #3: read/write function address =Bar0 + 0004h
Coil read back address =Bar0 + 000Ch

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Chapter 8 Connector Pin Assignments
J2 - 50-PIN FRONT CONNECTOR
ID
Pin #
Pin #
ID
HH
50
49
FF
EE
48
47
DD
CC
46
45
BB
AA
44
43
z
y
42
41
x
w
40
39
v
u
38
37
t
s
36
35
r
p
34
33
n
m
32
31
k
j
30
29
h
f
28
27
e
d
26
25
c
b
24
23
a
Z
22
21
Y
X
20
19
W
V
18
17
U
T
16
15
S
R
14
13
P
N
12
11
M
L
10
9
K
J
8
7
H
F
6
5
E
D
4
3
C
B
2
1
A

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J1 - 44-PIN FRONT CONNECTOR
ID
Pin #
Pin #
ID
ZZ
44
43
YY
XX
42
41
WW
VV
40
39
UU
TT
38
37
SS
RR
36
35
PP
NN
34
33
MM
LL
32
31
KK
JJ
30
29
HH
FF
28
27
EE
DD
26
25
CC
BB
24
23
AA
Z
22
21
Y
X
20
19
W
V
18
17
U
T
16
15
S
R
14
13
P
N
12
11
M
L
10
9
K
J
8
7
H
F
6
5
E
D
4
3
C
B
2
1
A