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Racal Instruments 1260 VXI Manual

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12 CHANNEL PLUG-IN
29-31 Cobham Road, Wimborne, Dorset BH21 7PF, United Kingdom
Technologie Park, Friedrich Ebert Strasse, 51429 Bergisch Gladbach, Germany
Copyright 2001 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
1260-121A/B
PUBLICATION NO. 980824-121
RACAL INSTRUMENTS
(Corporate Headquarters and Service Center)
4 Goodyear Street, Irvine, CA 92618
Tel: (800) 722-2528, (949) 859-8999; Fax: (949) 859-7139
5730 Northwest Parkway Suite 700, San Antonio, TX 78249
Tel: (210) 699-6799; Fax: (210) 699-8857
(European Headquarters and Service Center)
18 Avenue Dutartre, 78150 LeChesnay, France
Tel: +33 (0)1 39 23 22 22; Fax: +33 (0)1 39 23 22 25
Tel: +44 (0) 1202 872800; Fax: +44 (0) 1202 870810
Via Milazzo 25, 20092 Cinisello B, Milan, Italy
Tel: +39 (0)2 6123 901; Fax: +39 (0)2 6129 3606
Tel: +49 (0) 2204 844200; Fax: +49 (0) 2204 844219
info@racalinstruments.com
sales@racalinstruments.com
helpdesk@racalinstruments.com
http://www.racalinstruments.com/
PUBLICATION DATE: October 29, 2003
United States
Europe

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Summary of Contents for Racal Instruments 1260 VXI

  • Page 1 PUBLICATION DATE: October 29, 2003 Copyright 2001 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 THANK YOU FOR PURCHASING THIS RACAL INSTRUMENTS PRODUCT. For this product, or any other Racal Instruments product that incorporates software drivers, you may access our web site to verify and/or download the latest driver versions. The web address for driver downloads is: http://www.racalinstruments.com/downloads...
  • Page 3 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.
  • Page 4 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 7: Table Of Contents

    1260-121A/B User Manual Table of Contents Chapter 1 ...........................1-1 SPECIFICATIONS ........................1-1 Introduction ..........................1-1 Specifications ...........................1-2 Power Dissipation........................1-3 About MTBF ..........................1-4 Ordering Information ....................... 1-5 Chapter 2 ...........................2-1 INSTALLATION INSTRUCTIONS....................2-1 Unpacking and Inspection ......................2-1 Reshipment Instructions ......................2-1 Installation ..........................2-1 Module Configuration .......................2-1 Front Panel Connectors ......................2-3 Mating Connectors........................2-4 More About Maximum Current Ratings .................2-6...
  • Page 8 1260-121A/B User Manual Connecting the Safety Switch .....................3-10 Normally-Open and Normally-Closed Switches ..............3-10 Local and Global Reset Options ..................3-12 Momentary vs. Latching Switches..................3-13 Chapter 4 ...........................4-1 OPTIONAL HARNESS ASSEMBLIES ..................4-1 Chapter 5 ...........................5-1 PRODUCT SUPPORT.........................5-1 Product Support ........................5-1 Reshipment Instructions......................5-1 Support Offices ........................5-2 Repair and Calibration Request Form ..................5-3...
  • Page 9 1260-121A/B User Manual List of Figures Figure 1-1, The 1260-121A/B...................... 1-1 Figure 2-2, Front Panel Connector Pin Numbering ..............2-3 Figure 3-1, JP6 Configuration Jumper ..................3-11 Figure 3-2, JP7 Configuration Jumper ..................3-12 List of Tables Table 2-1, 1260-121A/B Front-Panel Connections..............2-4 Table 3-1, Register Offset Addresses of the 1260-121A/B Module ..........
  • Page 10 1260-121A/B User Manual This page was left intentionally blank.

  • Page 11: Chapter 1

    1260-121A/B User Manual Chapter 1 SPECIFICATIONS The 1260-121A/B is a plug-in switch module developed for the Introduction Racal Instruments 1260-100 Adapt-a-Switch Carrier. The 1260-121A/B includes the following features: · Standard Adapt-a-Switch plug-in design, providing for ease of replacement · Data-Driven embedded descriptor, allowing immediate use with any Option-01T switch controller, regardless of firmware revision level.

  • Page 12: Specifications

    Thermal EMF < 20uV Capacitance Channel-Chassis < 1pF Open-Channel < 12pF Insulation resistance > 10 Relay Settling Time < 10ms Shock 30g, 11ms, ½ sine wave Vibration 0.013in. P-P, 5-55Hz Bench Handling 4 in., 45° Specifications 1-2 Racal Instruments Ó 2003...

  • Page 13: Power Dissipation

    If five additional modules are likewise loaded, then the overall carrier dissipation is approximately 36 W, which is well within the cooling available in any commercial VXIbus chassis. In practice, rarely are more than 25% of the module’s relays Racal Instruments Ó 2003 Specifications 1-3...

  • Page 14: About Mtbf

    Additionally, if fewer plug-in modules are used, more power may be dissipated by the remaining cards. By using a chassis with high cooling capacity, such as the Racal Instruments 1261B, almost any configuration may be realized. The 1260-121A/B MTBF is 979,058 hours, calculated in...

  • Page 15: Ordering Information

    20 Pin Conn. Kit w/backshell & solder cup pins 407660 “B” Model Only Cable Assy. 6ft, Sleeved 407657-018 18-Conductor Cable Assy, 6 Ft, 14 AWG (2 Req’d) “B” Model Only Additional Manual Manual for 1260-121A/B 980824-121 Racal Instruments Ó 2003 Specifications 1-5...
  • Page 16 1260-121A/B User Manual This page intentionally left blank Specifications 1-6 Racal Instruments Ó 2003...

  • Page 17: Chapter 2

    4. Have a qualified person check the instrument for safety before use. 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 18 This type of configuration is known as a multiplexer. For a block diagram of the 1260-121A/B, see Figure 2-1. CHAN, 0 CHAN, 1 CHAN, 2 CHAN, 11 Figure 2-1, 1260-121A/B Block Diagram Installation Instructions 2-2 Racal Instruments Ó 2003...

  • Page 19: Front Panel Connectors

    See Figure 2-2 for pin numbering. Table 2-1 shows the mapping of channel numbers to connector pins. Information about available mating connectors is provided immediately after Table 2-1. Figure 2-2, Front Panel Connector Pin Numbering Racal Instruments Ó 2003 Installation Instructions 2-3...

  • Page 20: Mating Connectors

    J201 Mating connector accessories are available for the 1260-121B: Mating Connectors 20 Pin Connector Kit with backshell and pins P/N 407660 20 Pin, 18 Conductor Cable Assembly, 6 Ft., 14 AWG P/N 407657-018 Installation Instructions 2-4 Racal Instruments Ó 2003...
  • Page 21 The 20-Pin 18-Conductor Cable Assembly uses 14 AWG wire with crimp pins to mate with the 1260-121. The other cable end is un- terminated. Refer to Table 2-1 for channel-to-pin mapping information. Table 2-2 shows additional mating connectors and pins. Racal Instruments Ó 2003 Installation Instructions 2-5...

  • Page 22: More About Maximum Current Ratings

    The listed values are obtained from several tests in laboratories under room-temperature conditions (21°C). The contact is considered to be in free air. The maximum current carrying Installation Instructions 2-6 Racal Instruments Ó 2003...

  • Page 23: Installation

    Slide the 1260-121A/B into the carrier until its connector mates with the connector on the carrier backplane. Push firmly to fully seat the connector. Tighten the two retaining screws at the top and bottom of the 1260-121A/B plug-in. Racal Instruments Ó 2003 Installation Instructions 2-7...
  • Page 24 1260-121A/B User Manual This page was left intentionally blank. Installation Instructions 2-8 Racal Instruments Ó 2003...

  • Page 25: Chapter 3

    0 through 11, inclusive. Multiple individual channels may be specified using the following channel descriptor syntax: @ <module address> ( <chan1> , <chan2> , . . ., <chanN> )) Racal Instruments Ó 2003 Module Operation 3-1...

  • Page 26: Reply To The Mod:list? Command

    For the 1260-121 module the string value is: 1260-121 12-CHANNEL SPDT 10A SWITCH MODULE Thus, for a 1260-121 whose module address is 2, the reply to this query would be: 2 : 1260-121 12-CHANNEL SPDT 10A SWITCH MODULE Module Operation 3-2 Racal Instruments Ó 2003...

  • Page 27: Operating In Register-Based Mode

    1260-121. To obtain the absolute address where data is to be written or read from, the base address is added to the offset: Racal Instruments Ó 2003 Module Operation 3-3...

  • Page 28: Table 3-1, Register Offset Addresses Of The 1260-121A/B Module

    Port B 0x03 0x03 Read Only 0x201 EPROM Descriptor Read Only 0x203 Table 3-2, ID Register Functionality of the 1260-121A/B Module ID Register Register Table Module Version Functionality Description Always Reads 0x00 (Read Only) Module Operation 3-4 Racal Instruments Ó 2003...

  • Page 29: Table 3-3, Port A Register Functionality Of The 1260-121A/B Module

    (0: relay open 1: relay closed) (Not Used) (Not Used) (Not Used) (Not Used) Note: Open: Indicates C connected to NC with NO contact open Closed: Indicates C connected to NO with NC contact open Racal Instruments Ó 2003 Module Operation 3-5...

  • Page 30: Table 3-5, Eprom Descriptor Functionality Of The 1260-121A/B Module

    8-bit byte to a control register, while viIn8() is used to read a single 8-bit byte from the control register. The following code example shows the use of viOut8() to update the 1260-121 module. Module Operation 3-6 Racal Instruments Ó 2003...

  • Page 31: 1260-121A/B Example Code

    /* error handling code goes here */ /* form the offset for control register 0 */ /* note that the base A24 Address for the 1260-01T */ /* is already accounted for by VISA calls viIn8() and */ Racal Instruments Ó 2003 Module Operation 3-7...
  • Page 32 /* leave bit 7 clear to open channel 7 */ creg_val &= ~ (0x80); /* write the updated control register value */ error = viOut8 (hdl1260, VI_A24_SPACE, creg0_addr, creg_val); if (error < 0) { /* error handling code goes here */ Module Operation 3-8 Racal Instruments Ó 2003...
  • Page 33 1260-121A/B User Manual /* close the VISA session */ error = viClose( hdl1260 ); if (error < 0) { /* error handling code goes here */ Racal Instruments Ó 2003 Module Operation 3-9...

  • Page 34: Emergency Reset

    Closed Switches To verify that the 1260-121 is configured for a normally-open switch, ensure that no jumper or resistor is installed across the two pads comprising JP6 on the PCB (see Figure 3-1, JP6 Module Operation 3-10 Racal Instruments Ó 2003...

  • Page 35: Figure 3-1, Jp6 Configuration Jumper

    28AWG wire across the two pads of JP6. Ensure that the wire does not contact any circuitry other than these two pads. Zero-Ohm Resistor Figure 3-1, JP6 Configuration Jumper Racal Instruments Ó 2003 Module Operation 3-11...

  • Page 36: Local And Global Reset Options

    Relays on other switch modules remain unaffected. The local reset option is configured by not installing a jumper at JP7 on the PCB (see Figure 3-2, JP7 Configuration Jumper). JUMPER Figure 3-2, JP7 Configuration Jumper Module Operation 3-12 Racal Instruments Ó 2003...

  • Page 37: Momentary Vs. Latching Switches

    A latching (toggle) switch provides the maximum safety by not only opening the relays, but preventing them from being closed again until the safety switch is manually returned to the normal position. Racal Instruments Ó 2003 Module Operation 3-13...
  • Page 38 1260-121A/B User Manual This page was left intentionally blank. Module Operation 3-14 Racal Instruments Ó 2003...

  • Page 39: Chapter 4

    1260-121A/B User Manual Chapter 4 OPTIONAL HARNESS ASSEMBLIES 407660 Connector Kit, ..................4-2 407657 Cable Assy, ..................4-3 Racal Instruments Ó 2003 Optional Harness Assemblies 4-1...
  • Page 40 Assembly 407660 Low Level Cd U/M EA 20 PIN CONN KIT W/BACKSHELL-E Rev Date 7/14/98 Revision A Component Description Qty Reqd Engineer Txt 602349-120 CON-CAB-RCP020-.---T -E EA 1.00000 602349-900 CONTACT,SOLDER,FEMALE,14AWG -E EA 20.00000 Optional Harness Assemblies 4-2 Racal Instruments Ó 2003...
  • Page 41 1260-121A/B User Manual Racal Instruments Ó 2003 Optional Harness Assemblies 4-3...
  • Page 42 1260-121A/B User Manual This page was left intentionally blank. Optional Harness Assemblies 4-4 Racal Instruments Ó 2003...

  • Page 43: Chapter 5

    Chapter 5 PRODUCT SUPPORT 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 repair or calibration, call 1-800-722-3262. If parts are required to repair the product at your facility, call 1-949-859- 8999 and ask for the Parts Department.

  • Page 44: Support Offices

    Via Milazzo 25, 20092 Cinisello B, Milan, Italy Tel: +39 (0)2 6123 901; Fax: +39 (0)2 6129 3606 Technologie Park, Friedrich Ebert Strasse, 51429 Bergisch Gladbach, Germany Tel: +49 (0) 2204 844200; Fax: +49 (0) 2204 844219 Product Support 5-2 Racal Instruments Ó 2003...

  • Page 45: Repair And Calibration Request Form

    3. Please give any additional information you feel would be beneficial in facilitating a faster repair time (i.e., modifications, etc.) 4. Is calibration data required? Yes No (please circle one) Call before shipping Ship instruments to nearest support office. Note: We do not accept “collect” shipments. Racal Instruments Ó 2003 Product Support 5-3...

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