RACAL INSTRUMENTS™ 1260-118 80 CHANNEL SPST 1260-118A 24 CHANNEL SPST PLUG-IN Publication No. 980824-118 Rev. A Astronics Test Systems Inc. 4 Goodyear, Irvine, CA 92618 Tel: (800) 722-2528, (949) 859-8999; Fax: (949) 859-7139 atsinfo@astronics.com atssales@astronics.com atshelpdesk@astronics.com http://www.astronicstestsystems.com Copyright 1998 by Astronics Test Systems Inc. Printed in the United States of America. All rights reserved.
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RETURN OF PRODUCT Authorization is required from Astronics Test Systems before you send us your product or subassembly for service or calibration. Call or contact Customer Support at 1-800-722-3262 or 1-949859-8999 or via fax at 1-949-859-7139. We can also be reached at: atshelpdesk@astronics.com. If the original packing material is unavailable, ship the product or sub-assembly in an ESD shielding bag and use appropriate packing materials to surround and protect the product.
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.
Publication No. 980824-118 Rev. A 1260-118/-118A User Manual Table of Contents Chapter 1 .......................................................................................................................1-1 SPECIFICATIONS ...................................................................................................................1-1 Introduction ..........................................................................................................................1-1 Specifications .........
1260-118/-118A User Manual Publication No. 980824-118 Rev. A Chapter 3 .......................................................................................................................3-1 MODULE OPERATION............................................................................................................3-1 Command Set ......................................................................................................................3-1 Operating In Message-Based Mode ......................
Publication No. 980824-118 Rev. A 1260-118/-118A User Manual List of Figures Figure 1-1, The 1260-118 ........................................................................................................1-1 Figure 1-2, The 1260-118A ......................................................................................................1-2 Figure 2-1, 1260-118/118A Block Diagram ..............................................................................
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Publication No. 980824-118 Rev. A 1260-118/-118A User Manual DOCUMENT CHANGE HISTORY Revision Date A 10/02/08 No change 03/23/09 Astronics Test Systems Description of Change Revised per EO 29417 Revised format to current standards. Company name revised throughout manual. Manual now revision letter controlled. Added Document Change History Page v. Back of cover sheet. Revised Warranty Statement, Return of Product, Proprietary Notice and Disclaimer to current standards.
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Publication No. 980824-118 Rev. A 1260-118/-118A User Manual Chapter 1 SPECIFICATIONS Introduction The 1260-118, (80-channels), and the 1260-118A, (24-channels), are SPST (Form A), relay plug-in switch modules for the 1260-100 VXI Adapt-a-Switch Carrier or 1256 GPIB/RS232 Switching System Mainframe. The 1260-118/-118A includes the following features: • Standard Adapt-a-Switch plug-in design, providing for ease of replacement.
1260-118/-118A User Manual Publication No. 980824-118 Rev.
Publication No. 980824-118 Rev. A Specifications 1260-118/-118A User Manual Unless otherwise stated the specifications for the 1260-118 and the 1260-118A are the same. Bandwidth (-3dB) 100 MHz Insertion Loss 100 KHz 1 MHz < 0.5 dB < 1.
1260-118/-118A User Manual Publication No. 980824-118 Rev. A Altitude Operating Non-operating Power Requirements +5 VDC 150 mA + 30 mA per energized relay max. Weight Current -118 9 oz. (260 g) Mean Time Between Failures (MTBF) 783,668 hours (MIL-HDBK-217E) Mean Time to Repair (MTTR) Power Dissipation 10,000 feet 15,000 feet -118A 7 oz.
Publication No. 980824-118 Rev. A 1260-118/-118A User Manual This is acceptable power dissipation for an individual plug-in module. 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 energized simultaneously, and rarely is full rated current run through every path.
1260-118/-118A User Manual Publication No. 980824-118 Rev. A The most important factor is the maximum switching capacity, which is an interrelationship of maximum switching power, maximum switching voltage and maximum switching current. When a relay operates at a lower percentage of its maximum switching capacity, its life expectancy is longer. The maximum switching capacity specification is based on a resistive load, and must be further de-rated for inductive and capacitive loads.
Publication No. 980824-118 Rev. A 1260-118/-118A User Manual Chapter 2 INSTALLATION INSTRUCTIONS Unpacking and Inspection 1. Remove the 1260-118/-118A module and inspect it for damage. If any damage is apparent, inform the carrier immediately. Retain shipping carton and packing material for the carrier’s inspection. 2. Verify that the pieces in the package you received contain the correct 1260-118/-118A module option and the 1260118/-118A Users Manual.
1260-118/-118A User Manual Publication No. 980824-118 Rev. A The 1260-118 is an 80-channel, SPST plug-in for the Adapt-aSwitch Series. Module Configuration The 1260-118A is an 24-channel, SPST plug-in for the Adapt-aSwitch Series. Figure 2 1 shows a typical block diagram of a single switch.
Publication No. 980824-118 Rev. A 1260-118/-118A User Manual The 1260-118 has one 160-pin front-panel connector, labeled J200. It is a 160-pin, modified DIN style, with 0.025” square posts. See Figure 2-2 for a diagram of the front panel connector pin numbering. Front Panel Connectors The 1260-118A has one 64-pin front-panel connector, labeled J200. It is a 64-pin, modified DIN style, with 0.025” square posts. See Figure 2-3 for a diagram of the front panel connector pin numbering.
1260-118/-118A User Manual Publication No. 980824-118 Rev.
Publication No. 980824-118 Rev.
1260-118/-118A User Manual Publication No. 980824-118 Rev.
Publication No. 980824-118 Rev. A Mating Connectors 1260-118/-118A User Manual The following 1260-118 mating connector accessories are available: 160 Pin Connector Kit with backshell and pins, P/N 407664 The 160 Pin Connector Kit consists of a connector housing, aluminum backshell, and 160 crimp pins. After wire attachment, the pin is inserted into the housing and will snap into place, providing positive retention. 160 Pin Cable Assembly, 6 Ft.
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Publication No. 980824-118 Rev. A 1260-118/-118A User Manual Chapter 3 MODULE OPERATION Command Set The 1260-118/-118A cards use the existing 1260 and 1256 Series switch card command set. All commands supported by other relay modules (such as CLOSE, OPEN, SCAN, EXCLUDE, INCLUDE) are supported. The OPEN, CLOSE, EXCL, INCL, and SCAN commands all use relay descriptors to specify a single relay or a range of relays to operate.
1260-118/-118A User Manual Publication No. 980824-118 Rev. A Multiple individual channels may be specified using the following channel descriptor syntax: @ ( , , . . .
Publication No. 980824-118 Rev. A Operating The 1260-118 in Register-Based Mode 1260-118/-118A User Manual In register-based mode, the 1260-118 is operated by directly writing and reading control registers on the 1260-118 module. The first control register on the module operates channels 0 through 7. The second control register operates channels 8 through 15. The third control register operates channels 16 through 19, etc.
1260-118/-118A User Manual Publication No. 980824-118 Rev. A So, for our example, the first control register is located at: 205C01 Control Register 0, controls channels 0 through 7 The second control register is located at: 205C03 Control Register 1, controls channels 8 through 15 Tables 3-1 and 3-2 show the channel assignments for each control register.
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1260-118/-118A User Manual Publication No. 980824-118 Rev. A relay to close. 5. Write the modified value back to the control register. For example, to close channel 13: 6. Read Control Register 1 (this register controls channels 8 through 15, with channel 8 represented by the LSB) 7. Invert the bits in the value read in step 1 8. AND with 1101 1111 binary (the zero is in the position corresponding to channel 13) 9. OR with 0010 0000 binary 10.
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1260-118/-118A User Manual Publication No. 980824-118 Rev.
