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Racal Instruments 1260-82 User Manual

1260 vxi switching card, vxi optical switch
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Unit 5, 25F., Mega Trade Center, No 1, Mei Wan Road, Tsuen Wan, Hong Kong, PRC
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.
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: (800) 722-3262, FAX: (949) 859-7309
Racal Instruments, Ltd.
480 Bath Road, Slough, Berkshire, SL1 6BE, United Kingdom
Tel: +44 (0) 8706 080134; FAX: +44 (0) 1753 791290
Racal Systems Electronique S.A.
18 Avenue Dutartre, 78150 LeChesnay, France
Tel: +33 (1) 3923 2222; FAX: +33 (1) 3923 2225
Racal Systems Elettronica s.r.l.
Strada 2-Palazzo C4, 20090 Milanofiori Assago, Milan, Italy
Tel: +39 (02) 5750 1796; FAX +39 (02) 5750 1828
Racal Elektronik System GmbH.
Frankenforster Strasse 21, 51427 Bergisch Gladbach, Germany
Tel:+49 2204 92220; FAX: +49 2204 21491
Racal Australia Pty. Ltd.
3 Powells Road, Brookvale, NSW 2100, Australia
Tel: +61 (2) 9936 7000, FAX: +61 (2) 9936 7036
Racal Electronics Pte. Ltd.
26 Ayer Rajah Crescent, 04-06/07 Ayer Rajah Industrial Estate, Singapore 0513.
Tel: +65 7792200, FAX: +65 7785400
Racal Instruments, Ltd.
Tel: +852 2405 5500, FAX: +852 2416 4335
http://www.racalinst.com
PUBLICATION DATE: November 1, 1999

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  • Page 1 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.
  • Page 2 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...
  • Page 3 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.
  • Page 4 This page was left intentionally blank.

  • Page 5: Table Of Contents

    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..............
  • Page 6 1260-82 User Manual 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........................
  • Page 7 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...
  • Page 8 1260-82 User Manual This page was left intentionally blank.

  • Page 9: Module Specification

    1260-82 User Manual Chapter 1 MODULE SPECIFICATION The 1260-82 is a VXI Optical Switch Module developed for the Introduction 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.

  • Page 10: Specifications

    1260-82 User Manual Optical Fiber Type 9/125µm Specifications Wavelength Range 1290-1570 nm Insertion Loss <1.2 dB max., 0.8 dB typ. <2.0dB max., including connectors Back Reflection <-50 dB max, -55 dB typ. Polarization Dependent Loss .05 dB max. Repeatability +/-.005 dB max., +/-.003 dB typ.

  • Page 11: Ordering Information

    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 Listed below are part numbers for both the 1260-82 switch Ordering modules and available accessories. Information...

  • Page 12: About Mtbf

    The 1260-82 MTBF is >100,000 hours, calculated in accordance About MTBF 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 >10...

  • Page 13: Installation Instructions

    1. Use the original packing material when returning the switching Reshipment module to Racal Instruments for servicing. The original Instructions shipping carton and the instrument’s plastic foam will provide the necessary support for safe reshipment.

  • Page 14: Option 01T Installation

    Refer to Figure 2-1 for a block diagram of Configuration 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...

  • Page 15: Front Panel Connectors

    1260-82 User Manual The 1260-82 front panel connectors are labeled as shown in Front Panel Figure 2-3 through 2-5. The connector type is a single mode FC Connectors connector adapter. The Fail LED is available if the 1260 Option 01T Message Based Fail LED Controller is installed.

  • Page 16: Figure 2-3 1260-82C Front Panel Pin Connections, Front View

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

  • Page 17: Figure 2-4 1260-82D Front Panel Pin Connections, Front View

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

  • Page 18: Figure 2-5 1260-82F Front Panel Pin Connections, Front View

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

  • Page 19: Mating Connectors

    1260-82 User Manual Mating connectors for the 1260-82 module are standard FC types. Mating It is preferable to use fiberoptic cables with low insertion loss, low Connectors reflection FC/UPC or FC/SPC connector types. Refer to Appendix B for cleaning adapters, connectors, and handling of fiberoptic cables.
  • Page 20 1260-82 User Manual This page was left intentionally blank. Installation Instructions 2-8...

  • Page 21: Chapter 3 Module Operation

    1260-01T command module. The 1260-01T command module interprets the commands, and operates the 1260-82 module by sending 8-bit bytes to control registers on the 1260-82 module. A conceptual view of the message-based mode of operation is shown in Figure 3-1 below.

  • Page 22: Operating The 1260-82 In Message-Based Mode

    1260-82 User Manual Since the 1260-01T command module does not monitor the register-based mode of operation, it is advisable to select either the message-based or the register-based mode of operation, and continue to use the same mode throughout the application program.
  • Page 23 1260-82. The module address is a number from 1 through 12, inclusive. Set the module addresses for the 1260-82 and other 1260-Series modules so that no address is used by more than one 1260-Series module. For instructions on setting module addresses for a 1260-Series module, see the label on the side panel of the module.

  • Page 24: Reply To The Mod:list? Command

    Below is an example that illustrates the use of instrument commands and queries utilizing the *OPC? query. In this example, queries to other instruments (such as the power meter) are not made until all of the 1260-82’s pending operations have completed. Module Operation 3-4...
  • Page 25 1260-82 User Manual Example: A command is sent to the 1260-82 to close channel 2, the command is immediately followed by an *OPC? query to the same 1260-82. 1. Write to the 1260-82 VXI address: CLOSE(@8(2)); *OPC? 2. Read from 1260-82 the VXI address: Up to 15 milliseconds may be required before the CLOSE(@8(2)) command is completed and the *OPC? produces a "1"...

  • Page 26: Operating The 1260-82 In Register-Based Mode

    1260-82 User Manual The 1260-82 may be operated by directly setting one of the two Operating The control registers on the 1260-82 module. The first control register 1260-82 in on the module sets the position for each of the relays on the module.

  • Page 27: Switch Data Write Register

    When a channel is opened, the COM n input is connected to the CH n0 (Normally Closed) output (n=channel). Each channel of the 1260-82 is controlled by a single bit within the Relay Control Register. When the bit is set to a 1, the corresponding channel is closed.

  • Page 28: Relay Data Status Read Register

    1260-82 User Manual The 1260-82, via the Relay Data Status Register, provides a read Relay Data Status back of the position of each of the relays. This data uses the Read Register same format as the Relay Control Register. When the bit is a 1 in the status register, the corresponding relay is in the closed position (COM n input connected to CH n1 output).

  • Page 29: 1260-82 Example Code

    8-bit byte from the control register. The following code example shows the use of viOut8() to update the 1260-82 module. The VISA library functions (viIn8() and viOut8()) account for the base A24 offset of the 1260-01T controller. Therefore, the application code below uses only the module address to calculate the offset of the two control registers and the status register.
  • Page 30 1260-82 User Manual #include <visa.h> /* This example shows a 1260-01T at logical address 16 and a VXI/MXI* /* interface */ #define RI1260_01_DESC "VXI::16" /* For a GPIB-VXI interface, and a logical address of 77 */ /* the descriptor would be: "GPIB-VXI::77"...
  • Page 31 1260-82 User Manual * CLOSE CHANNEL 2, OPEN ALL OTHER CHANNELS * Use “ctrl_val” as the RAM image to control all channels ctrl_val = 0x04; /* write the control register */ error = viOut8 (hdl1260, VI_A24_SPACE, control_reg, ctrl_val); if (error < 0) {...
  • Page 32 1260-82 User Manual else { /* turn the ERROR LED off */ error = viOut8 (hdl1260, VI_A24_SPACE, error_LED_reg, 0x00); if (error < 0) { /* error handling code goes here */ /* close the VISA session */ error = viClose( hdl1260 );...

  • Page 33: Power And Module Cooling Considerations

    For a given temperature rise the required air flow is: Airflow(liters/sec) = 0.83/Temp Rise(°C) x Module Power (Watts) For a 10 °C rise and a 1260-82 module power of 12 Watts: Airflow(liters/sec) = 0.83/10 °C x 12 Watts = 1.0 liters /sec 3.
  • Page 34 Racal 1261B VXI Chassis is shown in Figure 3-4. The chassis airflow plotted is for the “worst case” slot airflow. In the 1261B chassis, the 1260-82 could be placed in any slot without much concern for the temperature rise of 10 °C being exceeded.

  • Page 35: Figure 3-4, 1260-82 Optical Switch And Racal Instruments 1261B Chassis Airflow Resistance Curves

    1260-82 User Manual Pressure vs Airflow Airflow (liters/sec) 1260-82 1261B Worst Case Slot Figure 3-4, 1260-82 Optical Switch and Racal Instruments 1261B Chassis Airflow Resistance Curves Module Operation 3-15...
  • Page 36 1260-82 User Manual This page was left intentionally blank. Module Operation 3-16...

  • Page 37: Drawings

    Chapter 4 DRAWINGS 407705-003 Final Assy, 1260-82C................4-3 407705-004 Final Assy, 1260-82D................4-5 407705-006 Final Assy, 1260-82F ................4-7 405148 PCB Assy, L-BUS Jumper ..............4-9 435148 Schematic, L-BUS Jumper..............4-10 405154-001 PCB Assy, 1260-82 ................4-11 435154-001 Schematic, 1260-82................4-12 407707 Cable Assy, Interface................4-23 Drawings 4-1...
  • Page 38 1260-82 User Manual This page was left intentionally blank. Drawings 4-2...
  • Page 39 1260-82 User Manual 1 2 3 4 5 6 CARD ADDR BYTE Drawings 4-3...
  • Page 40 1260-82 User Manual Drawings 4-4...
  • Page 41 1260-82 User Manual 1 2 3 4 5 6 C A R D A D D R B Y T E Drawings 4-5...
  • Page 42 1260-82 User Manual Drawings 4-6...
  • Page 43 1260-82 User Manual 12 3 4 5 6 CARD ADDR BYTE Drawings 4-7...
  • Page 44 1260-82 User Manual Drawings 4-8...
  • Page 45 1260-82 User Manual Drawings 4-9...
  • Page 46 1260-82 User Manual Drawings 4-10...
  • Page 47 1260-82 User Manual Drawings 4-11...
  • Page 48 1260-82 User Manual Drawings 4-12...
  • Page 49 1260-82 User Manual Drawings 4-13...
  • Page 50 1260-82 User Manual Drawings 4-14...
  • Page 51 1260-82 User Manual Drawings 4-15...
  • Page 52 1260-82 User Manual Drawings 4-16...
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  • Page 54 1260-82 User Manual Drawings 4-18...
  • Page 55 1260-82 User Manual Drawings 4-19...
  • Page 56 1260-82 User Manual Drawings 4-20...
  • Page 57 1260-82 User Manual Drawings 4-21...
  • Page 58 1260-82 User Manual Drawings 4-22...
  • Page 59 1260-82 User Manual 407707 S H . REV. DWG. NO. Drawings 4-23...
  • Page 60 1260-82 User Manual This page was left intentionally blank. Drawings 4-24...

  • Page 61: Parts List

    1260-82 User Manual Chapter 5 PARTS LIST 407705-003 Final Assy, 1260-82C................5-3 407705-004 Final Assy, 1260-82D................5-4 407705-006 Final Assy, 1260-82F ................5-5 405148 PCB Assy, L-BUS Jumper ..............5-6 405154-001 PCB Assy, 1260-82 ................5-7 407707 Cable Assy, Interface................5-8 407706 Shipping Kit...................5-9 Parts List 5-1...
  • Page 62 1260-82 User Manual This page was left intentionally blank. Parts List 5-2...
  • Page 63 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 407705-003 1260-82C, 3 1X2 OPT SW, 1S Date 5/27/99 Revision A Component Description Qty Reqd 050000-000 RSCH1-000 00H. 06W005 4.00000 R93-95, 100 231588-019 ICMEM-27C256-15-U84-PLCCP 1.00000 U8 4 405154-001 PCB ASSY, 1260-82/822 1.00000 407706 SHIP KIT, 1260-82 B&T...
  • Page 64 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 407705-004 1260-82D, 4 1x2 OPT SW,1S Date 5/27/99 Revision A Component Description Qty Reqd 050000-000 RSCH1-000 . 00H. 06W005 4.00000 R93-95, 100 231588-019 ICMEM-27C256-15-U84-PLCCP 1.00000 405154-001 PCB ASSY, 1260-82/822 1.00000 407706 SHIP KIT, 1260-82 B&T...
  • Page 65 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 407705-006 1260-82F, 6 1X2 OPT SW, 1S Date 5/27/99 Revision A Component Description Qty Reqd 050000-000 RSCH1-000. 00H. 06W005 4.00000 R93-95, 231588-019 ICMEM-27C256-15-U84-PLCCP 1.00000 U8 4 405154-001 PCB ASSY, 1260-82/822 1.00000 407706 SHIP KIT, 1260-82 B&T...
  • Page 66 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 405148 PCB ASSY, L-BUS JUMPER Date 1/28/99 Revision A Component Description Qty Reqd 415148 PCB, L-BUS JUMPER 1.00000 601675-001 CON-PCB-PLG096P. 100D 1.00000 611263 STS04B. 062P. 775L.250 1.00000 435148 SCHEMATIC, L-BUS JUMPER Parts List 5-6...
  • Page 67 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 405154-001 PCB ASSY,1260-82/822 Date 5/27/99 Revision A Component Description Qty Reqd R-21-1801 CPCH2-0010.0N0050V20 26.00000 CS, 6,100-102, 104- 106, 108, 110,113, 116,-122, 137-140, 150, 152-154 050000-000 RSCH1-000 .00H. 06W005 4.00000 R96, 97, 98, 99 050000-102 RSCH2-001 .00K.
  • Page 68 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 407707 CABLE ASSY, INTFC,4-PIN Date 5/27/99 Revision A Component Description U/M Qty Reqd 602163-104 CON-CAB-RCP004C. 100S 2.00000 602163-901 TRMCRP-SNP-U-F22-30G 7.00000 524999 WRTEF-STR24G-9-9-9 WHT .00001 500005 TIE CORD NYLON .00001 Parts List 5-8...
  • Page 69 1260-82 User Manual RACAL INSTRUMENTS INC. Assembly 407706 SHIP KIT, 1260-82 B&T Date 3/23/99 Revision A Component Description Qty Reqd 455540 KEY, LOCKOUT, TTL AC 2.00000 455541 KEY, LOCKOUT, TTL, C 2.00000 455542 KEY, LOCKOUT, TTL, A 2.00000 615013 S1M-PPANHOO2-56X. 188 3.00000...
  • Page 70 1260-82 User Manual This page was left intentionally blank. Parts List 5-10...

  • Page 71: Product Support

    For worldwide support and the office closes to your facility, refer to the Support Offices section on the following page. Use the original packing material when returning the 1260-82 to Reshipment Racal Instruments for calibration or servicing. The original...
  • Page 72 1260-84 User Manual Racal Instruments, Inc. Support Offices 4 Goodyear St., Irvine, CA 92718-2002 Tel: (800) 722-3262, FAX: (949) 859-7309 Racal Instruments, Ltd. 480 Bath Road, Slough, Berkshire, SL1 6BE, United Kingdom Tel: +44 (0) 8706 080134; FAX: +44 (0) 1753 791290 Racal Systems Electronique S.A.

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