Racal Instruments 1260-82 User manual

1260 VXI
SWITCHING CARD
Model 1260-82
VXI OPTICAL SWITCH
PUBLICATION NO. 980673-059
RACAL INSTRUMENTS
Racal Instruments, Inc.
4 Goodyear St., Irvine, CA 92618-2002
Tel: [phone], FAX: [phone]
Racal Instruments, Ltd.
480 Bath Road, Slough, Berkshire, SL1 6BE, United Kingdom
Tel: [phone]; FAX: [phone]
Racal Systems Electronique S.A.
18 Avenue Dutartre, 78150 LeChesnay, France
Tel: [phone]; FAX: [phone]
Racal Systems Elettronica s.r.l.
Strada 2-Palazzo C4, 20090 Milanofiori Assago, Milan, Italy
Tel: [phone]; FAX [phone]
Racal Elektronik System GmbH.
Frankenforster Strasse 21, 51427 Bergisch Gladbach, Germany
Tel:[phone]; FAX: [phone]
Racal Australia Pty. Ltd.
3 Powells Road, Brookvale, NSW 2100, Australia
Tel: [phone], FAX: [phone]
Racal Electronics Pte. Ltd.
26 Ayer Rajah Crescent, 04-06/07 Ayer Rajah Industrial Estate, Singapore 0513.
Tel: [phone], FAX: [phone]
Racal Instruments, Ltd.
Unit 5, 25F., Mega Trade Center, No 1, Mei Wan Road, Tsuen Wan, Hong Kong, PRC
Tel: [phone], FAX: [phone]
http://www.racalinst.com
PUBLICATION DATE: November 1, 1999
Copyright 1999 by Racal Instruments, 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.

WARRANTY STATEMENT
All Racal Instruments, Inc. products are designed and manufactured to exacting standards and in full
conformance to Racal’s ISO 9001 procedures.
For the specific terms of your standard warranty, or optional extended warranty or service agreement, contact
your Racal customer service advisor. 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 your customer service advisor by:
E-Mail: [email protected]
Telephone: [phone] (USA)
[phone] (UK)
[phone] (Hong Kong)
Fax: [phone] (USA)
[phone] (UK)
[phone] (Hong Kong)
RETURN of PRODUCT
Authorization is required from Racal Instruments before you send us your product for service or calibration. Call
your nearest Racal Instruments support facility. A list is located on the last page of this manual. If you are
unsure where to call, contact Racal Instruments, Inc. Customer Support Department in Irvine, California, USA at
1-800-722-3262 or 1-949-859-8999 or via fax at 1-949-859-7139. We can be reached at:
[email protected].
PROPRIETARY NOTICE
This document and the technical data herein disclosed, are proprietary to Racal Instruments, and shall not,
without express written permission of Racal Instruments, be used, in whole or in part to solicit quotations from a
competitive source or used for manufacture by anyone other than Racal Instruments. 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 Racal Instruments.

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 instrument is configured to operate on the voltage at the power source. See
Installation Section.
2. Ensure the proper fuse is in place for the power source to operate.
3. 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.
Optical Ports WARNING: To avoid eye damage, do not look directly into the optical output
ports while there is an optical signal connected to the input port. Always attach
the output ports to a receiver or cover with the supplied dust caps before
enabling the source signal to the input port.
!

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1260-82 User Manual
i
Table of Contents
Chapter 1
MODULE SPECIFICATION..........................................................................................................1-1
Introduction...............................................................................................................................1-1
Specifications1..........................................................................................................................1-2
Ordering Information.................................................................................................................1-3
Safety .......................................................................................................................................1-3
Product Support........................................................................................................................1-3
About MTBF..............................................................................................................................1-4
Chapter 2
INSTALLATION INSTRUCTIONS.................................................................................................2-1
Unpacking and Inspection......................................................................................................... 2-1
Reshipment Instructions............................................................................................................2-1
Option 01T Installation..............................................................................................................2-2
Module Installation.................................................................................................................... 2-2
Module Configuration................................................................................................................ 2-2
Front Panel Connectors............................................................................................................2-3
Fail LED.................................................................................................................................... 2-3
Switch Status LED....................................................................................................................2-3
Mating Connectors ................................................................................................................2-7
Optical Ports .........................................................................................................................2-7
Chapter 3
MODULE OPERATION ................................................................................................................3-1
General Information..................................................................................................................3-1
Operating The 1260-82 In Message-Based Mode.................................................................... 3-2
Channel Descriptors For The 1260-82 Module......................................................................3-2
Reply To The MOD:LIST? Command.................................................................................... 3-4
Using The *OPC Query / Command...................................................................................... 3-4
Operating The 1260-82 in Register-Based Mode......................................................................3-6
Switch Data Write Register ...................................................................................................3-7

1260-82 User Manual
ii
Relay Data Status Read Register ......................................................................................... 3-8
ERROR LED Control Register............................................................................................... 3-8
1260-82 Example Code ........................................................................................................ 3-9
Power and Module Cooling Considerations............................................................................ 3-13
Airflow Requirements.......................................................................................................... 3-13
Chapter 4
DRAWINGS ................................................................................................................................. 4-1
Chapter 5
PARTS LIST................................................................................................................................. 5-1
Chapter 6
Product Support........................................................................................................................ 6-1
Reshipment Instructions ........................................................................................................... 6-1
Appendix A
1260-82 Address Map..................................................................................................................A-1
Appendix B
Maintenance of Fiberoptic Cables and Connectors......................................................................B-1
Appendix C
Performance Verification..............................................................................................................C-1

1260-82 User Manual
iii
List of Figures
Figure 2-1, 1260-82 Block Diagram.............................................................................................. 2-2
Figure 2-3 1260-82C Front Panel Pin Connections, Front View...................................................2-4
Figure 2-4 1260-82D Front Panel Pin Connections, Front View...................................................2-5
Figure 2-5 1260-82F Front Panel Pin Connections, Front View................................................... 2-6
Figure 3-1, Message-Based Mode of Operation..........................................................................3-1
Figure 3-2, Register-Based Mode of Operation...........................................................................3-1
Figure 3-4, 1260-82 Optical Switch and Racal Instruments
1261B Chassis Airflow Resistance Curves............................................................... 3-15

1260-82 User Manual
iv
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1260-82 User Manual
Module Specification 1-1
Chapter 1
MODULE SPECIFICATION
Introduction The 1260-82 is a VXI Optical Switch Module developed for the
Racal 1260 Series of switch modules.
The 1260-82 is available configured from the factory and can be
ordered with the Option-01T Message Based Interface.
The following features are included in the 1260-82
•Three, four, or six 1X2 Optical Switch configurations.
•Single-slot VXI C-size module.
•Message Based Interface Option available.
•New Data Driven Model embedded firmware.
•Single Mode, 9/125µm optical fiber with a wavelength
range of 1290-1570 nm standard. Optional fiber types
and wavelengths are available as specials.
•FC/SPC connectors are standard (other connectors or
fiber pigtails are available as specials).
•Dust Caps are supplied with all front panel Fiberoptic
adapters.

1260-82 User Manual
Module Specification 1-2
Specifications1Optical Fiber Type 9/125µm
Wavelength Range 1290-1570 nm
Insertion Loss2<1.2 dB max., 0.8 dB typ.
<2.0dB max., including connectors
Back Reflection2<-50 dB max, -55 dB typ.
Polarization Dependent Loss3.05 dB max.
Repeatability4+/-.005 dB max., +/-.003 dB typ.
Isolation 80dB max., 90 dB typ.
Switching Time 15msec
Shock 30g, 11msec, ½ sine wave
Vibration 0.013” PK-PK, 5-55Hz
Bench Handling 4in, 45o
Temperature
Operating 0 to +50 degrees Centigrade
Non-operating -20 to +70 degrees Centigrade
Relative Humidity 90% RH Non-Condensing at ≤40oC
for 5 days
Power requirements 5 VDC at 1.65 Amps W/Option 01T
5 VDC at 0.65 Amp WO/Option 01T
Cooling Requirements 1.0 liter/sec @ .025 mmH2O
Dimensions Single-wide C-Size, VXIbus Module
Module Weight 1260-82C 1260-82D
w/OPT 01T 2.95lbs (1.34kg) 3.07lbs (1.40kg)
w/o OPT 01T 2.70lbs (1.23kg) 2.82lbs (1.28kg)
1260-82F
w/ OPT 01T 3.31lbs (1.51kg)
w/o OPT 01T 3.06lbs (1.39kg)
MTBF 100,000 Hours minimum

1260-82 User Manual
Module Specification 1-3
NOTES: 1. All Specifications are referenced without connectors and
measured at 230C ±±50C.
2. Connector Insertion Loss typically less than 0.25dB, 0.4dB
maximum per connector. Back Reflection less than –45dB.
3. Connector PDL typically less than .02dB, measured at
1550 nm.
4. Sequential Repeatability, 100 cycles measured at constant
temperature after 1 hour warm-up
Ordering
Information Listed below are part numbers for both the 1260-82 switch
modules and available accessories.
ITEM DESCRIPTION PART #
1260-82C Switch Module 1260-82C, Three 1X2 Optical Switch 407705-003
1260-82D Switch Module 1260-82D, Four 1X2 Optical Switch 407705-004
1260-82F Switch Module 1260-82F, Six 1X2 Optical Switch 407705-006
1260-82 Shipping Kit Manual, Key Locks 407706
Additional Manual 1260-82 User Manual 980673-059
Safety Refer to the “FOR YOUR SAFETY” page preceding the
Table of Contents. Follow all NOTES, CAUTIONS, and
WARNINGS to ensure personnel safety and prevent damage
to the instrument.
Product Support Racal Instruments has a complete Service and Parts
Department. If you need technical assistance or should it be
necessary to return your product for servicing, call 1-800-
722-3262 or 1-949-859-8999 and ask for Customer Support.
You may also contact Customer Support via E-Mail at:
[email protected]
If parts are required to repair the product at your facility, call
1-800-722-3262 or 1-949-859-8999 and ask for the Parts
Department.

1260-82 User Manual
Module Specification 1-4
When sending your instrument in for repair, complete the
form in the back of this manual and enclose it with the
instrument.
About MTBF The 1260-82 MTBF is >100,000 hours, calculated in accordance
with MIL-HDBK-217E, Ground Benign Environment.
The optical switch used on the 1260-82 module is Racal part no.
602382. The switch manufacturer’s specifications for this switch
are:
Switch Durability >107operations minimum

1260-82 User Manual
Installation Instructions 2-1
Chapter 2
INSTALLATION INSTRUCTIONS
Unpacking and
Inspection
1.Before unpacking the switching module, check the exterior of
the shipping carton for any signs of damage. All irregularities
should be noted on the shipping bill and reported.
2.Remove the instrument from its carton, preserving the factory
packaging as much as possible.
3.Inspect the switching module for any defect or damage.
Immediately notify the carrier if any damage is apparent.
4.Have a qualified person check the instrument for safety before
use.
!CAUTION
Always perform unpacking, disassembly, repair, and
cleaning at a static safe work station.
Reshipment
Instructions
1.Use the original packing material when returning the switching
module to Racal Instruments for servicing. The original
shipping carton and the instrument’s plastic foam will provide
the necessary support for safe reshipment.
2.If the original packing material is unavailable, wrap the
switching module in an ESD Shielding bag and use plastic
spray foam to surround and protect the instrument.
3.Reship in either the original or a new shipping carton.

1260-82 User Manual
Installation Instructions 2-2
Option 01T
Installation
Installation of the Option 01T is described in the Installation and
Setup section of the 1260A-Option 01T Users Manual, Publication
No. 980806-999.
!
NOTE:
Only install a 1260A Option 01T controller with
release 7.1 or later firmware. The 1260-82 is not
compatible with the older 1260 Option 01 controller.
Module
Installation
Installation of the 1260-82 Switching Module into a VXI
mainframe, including the setting of switches SW1-1 through SW1-
4, SW2, and SW3, is described in the Installation and Setup
Section of the 1260A Option 01T Users Manual, Publication No.
980806-999.
Module
Configuration
The 1260-82 is a VXI 1X2 optical switch module consisting of up
to six optical switches. Refer to Figure 2-1 for a block diagram of
the basic 1x2 switch used in a 1260-82. There are up to six 1x2
available in the 1260-82.
The 1260-82 module can be organized via software as N
independent 1X2 optical switches or as N synchronous 1X2
switches (where N = 3,4, or 6) by use of the INCLUDE command
(Refer to the 1260-01T User Manual).
Figure 2-1, 1260-82 Block Diagram
COM n
CH n0
CH n1
(n= 0 to 5)

1260-82 User Manual
Installation Instructions 2-3
Front Panel
Connectors
The 1260-82 front panel connectors are labeled as shown in
Figure 2-3 through 2-5. The connector type is a single mode FC
connector adapter.
Fail LED The Fail LED is available if the 1260 Option 01T Message Based
Controller is installed. For further information refer to the 1260
Option 01T Users Manual, Publication No. 980806-999
Switch Status
LED
The 1260-82 provides a single switch status LED
(STATUS) common all switches installed. The status LED
provides an indication of the state of the optical switch as
shown below:
OFF: The optical switch is in an idle state.
GREEN: The optical switch is being accessed (in the
process of switching). This pulse is stretched to
allow the user to view switch accesses.
RED: An Error has occurred as a result of the last
command and confidence mode is enabled (refer
to the Option 01T User Manual for a description
of the “MONITOR: STATE” command which is
used to control the confidence mode). An Error is
detected when position sense feedback does not
match the programmed position.

1260-82 User Manual
Installation Instructions 2-4
Figure 2-3 1260-82C Front Panel Pin Connections, Front View

1260-82 User Manual
Installation Instructions 2-5
Figure 2-4 1260-82D Front Panel Pin Connections, Front View

1260-82 User Manual
Installation Instructions 2-6
Figure 2-5 1260-82F Front Panel Pin Connections, Front View

1260-82 User Manual
Installation Instructions 2-7
Mating
Connectors
Mating connectors for the 1260-82 module are standard FC types.
It is preferable to use fiberoptic cables with low insertion loss, low
reflection FC/UPC or FC/SPC connector types.
Refer to Appendix B for cleaning adapters, connectors, and
handling of fiberoptic cables.
Optical Ports WARNING: To avoid eye damage, do not look directly into the
optical output ports while there is an optical signal connected to
the input port. Always attach the output ports to a receiver or
cover the ports with the supplied caps before enabling the source
signal to the input port.
!

1260-82 User Manual
Installation Instructions 2-8
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