Giga-tronics ASCOR 3000-46 Operation Manual

Manual 07500770 Model 3000-46

Model 3000-46

64 DPDT & 16(1x8) Multiplexer

90400750

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Operation Manual

Manual 07500770 Model 3000-46

Warranty

Giga-tronics Series 3000 Switching Modules are warranted against
defective materials and workmanship for three years from 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.

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

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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

3000-46

Regulatory compliance information

This product complies with the essential requirements of the following applicable European
Directives, and carries the CE mark accordingly.

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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TPCI

Number

TPCI Issue

Date

Date Entered

Comments

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.

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Revision History

Revision

Description of Change

Chg Order #

Approved By

A

Initial Release

B

Updated

C

Reformatted 3/12

RCW

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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 ...................................................................................................................... 8

Chapter 3 Functional Description ................................................................................................................. 9

3.1 Introduction ........................................................................................................................................ 9

3.2 General Description ............................................................................................................................ 9

Chapter 4 Block Diagram ............................................................................................................................ 11

Chapter 5 Controls and Indicators .............................................................................................................. 12

5.1 VXI Logical Address ........................................................................................................................... 12

5.2 LEDs................................................................................................................................................... 12

5.2.1 “BUS” LED .................................................................................................................................. 12

5.2.2 “PWR” LED ................................................................................................................................. 12

Chapter 6 Internal Settings ......................................................................................................................... 13

6.1 Fuse ................................................................................................................................................... 13

6.2 VXI

Interrupt Level Selection......................................................................................................... 13

bus

Chapter 7 Specifications ............................................................................................................................. 14

Chapter 9 Register Map .............................................................................................................................. 16

Chapter 10 Connector Configuration .......................................................................................................... 17

Chapter 11 Memory Map ........................................................................................................................... 23

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WARNING

CAUTION

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.

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Chapter 2 Configuration Table

Module

PL90400750

Assy 90400750

Schematics

MB PL85002160

Assy 85002160
SCH85002160

DB PL85002170

Assy 85002170
SCH85002170

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Chapter 3 Functional Description

3.1 Introduction

This User Guide provides a basic description of the Model 3000-46, Flex Switch module. Also included
are installation and input connection procedures, programming information, service and maintenance
information.

3.2 General Description

The Model 3000-46 is a versatile switch array for those who need mix signal capability. The module has
sixty four (64) DPST coaxially shielded relays for dual wire isolation. These relays can be used to switch
signal paths to a digital subsystem. Bandwidth of these paths is greater than 100 MHz. At the input of
these isolation relays are sixteen (16) 8x1 trees which are arranged as eight (8) pairs of 8x1 trees with
individual control of the + and - side of the differential lines in the trees. Additionally, the 8x1 trees can
be combined to form four (4) pairs of 16x1 trees, or two pairs of (2) 32x1 trees, or a single pair of 64x1
tree. All of the combinations of trees allow independent control of the + and - side of the tree for true
differential measurement across any path. This capability allows 64 channels of signals to be switch to
either a digital subsystem or they can be individually switched to analog test equipment. Because all of
these options can be accomplished through software control, this switch module provides maximum
Flexibility regardless of the switch tree selected.

All of the relays are coaxially shielded to provide superior performance. The isolation relays are dual
coaxially shielded reed relays with a common control coil (DPST). These isolation relays provide support
for high speed digital performance, 100 MHz minimum bandwidth (150 MHz typical). The switch trees
are coaxially shielded SPST for maximum analog versatility at >>80 MHz bandwidth. Each of the sixteen
8x1 trees connect to a switch array to allow for combinations as 8x1, 16x1, 32x1, or 64x1 to the output
connectors, J2 and J5. There are sixteen 8x1 outputs, eight 16x1 outputs, four 32x1 outputs, and two
64x1 outputs. They can be all use together or switched out to provide superior performance by isolating
signal paths to improve the transmission line.

With this flexible combination of utilizing the switch trees, up to 30 instruments can be connected to the
Model 3000-46, Flex-switch in addition to the 64 pairs of digital signals. Additionally, two external
references are provided as well as analog and chassis ground for measurements of the + or - side of the
inputs to be measured against the 4 references. Two additional reference inputs are provided on the
daughter board (J5) which are assign to the - side of the measurement trees.

In a typical application without the 3000-46, the system designer would be required to use several
modules and wire them together to get mix signal capability. This inter-module wiring carries with it the
inherent loss of bandwidth due to spliced wires and other wiring requirements associated with inter­module wiring. The ASCOR 3000-46 Flex-switch offers the customer the ability to combine all of the
different modules within a single module with exceptional low noise and high bandwidth performance.

The connectors are Robinson Nugent type P50E series ribbon cable connector. This connector accepts
dual ribbon cables with 0.050" centers. This series of connector has a high density 0.050" pitch contacts
which accepts standard 0.050" pitch ribbon on each side of the connector. The signal pins are located

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on J1, J3, J4, and J6. The Output channel ports are located on J2 and J5. Isolated Pins (digital) 1-16 are
located on J1, even number pins (a ribbon cable). The mixed signal pins, Pins 1-16 are located on J1, odd
number pins (other ribbon cable). This organization allows convenient cabling schemes using standard
ribbon cable. The digital signals are kept on one ribbon cable while the mix signal pin is on another
ribbon cable. Pins 17-32 are organized in the same manner on J3. Pins 33-48 are organized in the same
manner on J4. Pins 49-64 are organized in the same manner on J6. The outputs of the switch trees and
the reference inputs are located on J2 and J5. Refer to connector diagram for exact location of the
signals. Associated with each signal pin is the shield. Optimum performance is achieved if shielded
wiring is used with the 3000-46. The adjacent shield provides a short ground path. If ribbon cable is
used, then the shield pins will provide a ground-signal-ground wiring scheme. The analog ground should
be tied to the associated grounds of the signal source. This avoids ground loops and minimized noise
pickup through the analog ground.

ASCOR Model 3000-46

Features

 True Mix Signal Switch.
 64 Coaxially Shielded DPST Isolation Relays.
 16 8x1 Shielded Trees or 8-8x1 Dual Wire.
 8 16x1 Shielded Trees or 4-16x1 Dual Wire.
 4 32x1 Shield Trees or 2-32x1 Dual or
 2 64x1 Shielded Trees or 1- 64x1 Dual Wire.
 Measure to 4 External Inputs, Analog Ground or Earth Ground.
 100MHz Bandwidth Through Isolation Paths (Digital Path).
 50MHz Bandwidth, worst case Through Switch Tree (in to 50 ohm).

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