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Summary of Contents for Tektronix VX4287
- Page 1 User Manual VX4287 32-Channel Differential Analog/Digital Input Module 070-9144-02 This document applies for firmware version 1.00 and above.
- Page 2 Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000...
- Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.
- Page 4 8444 AB Heerenveen The Netherlands declare under sole responsibility that the VX4287 and all options meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility. Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities:...
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Page 8: General Safety Summary
Product Damage Provide Proper Ventilation. To prevent product overheating, provide proper Precautions ventilation. Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel. VX4287... - Page 9 WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: DANGER Protective Ground ATTENTION Double High Voltage (Earth) Terminal Refer to Manual Insulated VX4287...
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Page 10: Service Safety Summary
Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. VX4287... -
Page 155: General Information And Conventions
VX4287 commands may be sent in upper or lower case. To avoid confusion between alphanumeric characters, for example between a one (1) and an “L” or a zero (0) and and the letter “o”, all commands are illustrated in the case which provides the greatest visual distinction. -
Page 156: Equipment Required
Prerequisites The test sequences in this procedure are valid under the following conditions: The VX4287 module covers are in place and the module is installed in an approved VXIbus mainframe as described in Section 2 of the User Manual The VX4287 has passed the power-on self test... - Page 157 Table 1–1: Required Test Equipment (Cont.) Item Number and Description Minimum Requirements Example Purpose 10. Adapter, BNC female to dual 50 , BNC female to dual banana Tektronix part number Interconnecting electrical banana 013-0090-00 signals 11. Alligator Clip Shorting positive and negative inputs together for CMR test A–23...
- Page 158 TTL Output 26 Input 28 TTL Output 27 Input 29 TTL Output 28 Input 30 TTL Output 29 Input 31 TTL Output 30 – Not Connected TTL Output 31 Connection for Channels 24 to 31 Figure 5: DD-50S Interconnect Assembly A–24 VX4287...
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Page 159: Test Record
Appendix F: Performance Verification VX4287 Under-Test Configuration The VX4287 under-test must be installed in an approved VXIbus system. At a minimum, the system must contain the elements listed in Table 1–2. Table 1–2: Elements of a Minimum VX4287 Under-Test System... - Page 160 Appendix F: Performance Verification Table 1–4: VX4287 Test Record VX4287 Serial Number: Temperature and Relative Humidity: Date of Last Calibration: Verification Performed by: Certificate Number: Date of Verification: VXIbus Interface Logical Address, IEEE Address, Slot No., MFG., Model, etc. System Configuration Response...
- Page 161 Appendix F: Performance Verification Table 1–4: VX4287 Test Record (Cont.) DC Voltage Accuracy 50 Volt (Limits) 49.945 to 49.895 to 49.970 to –50.055 –50.105 –50.030 50.055 50.030 50.105 –49.945 –49.970 –49.895 Input 8 Input 9 Input 10 Input 11 Input 12...
- Page 162 Appendix F: Performance Verification Table 1–4: VX4287 Test Record (Cont.) DC Voltage Accuracy 10 Volt (Limits) 9.985 to 9.980 to 9.990 to –10.015 –10.020 –10.010 10.015 10.010 10.020 –9.985 –9.990 –9.980 Input 6 Input 7 Input 8 Input 9 Input 10...
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Page 163: Performance Verification Tests
Failed light will be on, the Power light will be off, and SYSFAIL* will be asserted. Following a successful VXIbus system startup sequence, the green PWR light on the VX4287 front panel indicates that the self test has passed and that all power supplies are operational. - Page 164 Appendix F: Performance Verification VXIbus Interface This sequence verifies that the VX4287 configures correctly and communicates properly with the system controller. Equipment No test equipment required. Requirements Prerequisites All prerequisites listed on Page A–22 1. If using the VX4521 Slot 0 Resource Manager, send the TABLE command to verify the system configuration.
- Page 165 This sequence verifies the STB/ARM input, the generation of a VXIbus Request Interrupt, EQU OUT Out, True interrupt, the EQU OUT pulse, the ability of the VX4287 to recognize an input data pulse of at least 2.7 µs duration and 200 mV in amplitude, and the Minimum Data Pulse generation of a corresponding TTL Output data pulse.
- Page 166 2.4 µs. The EQU OUT pulse occurs about 200 µs after the function generator input pulse. 10. Perform a serial poll with the VX4287 and verify a response of 0x41. This response indicates that a VXIbus Request True event is pending.
- Page 167 100 mV. 16. Reset the VX4287 to the power-on default state, to close isolation relays for the channels specified, to trigger on a 100 mV input level, with a capture equation specified to acquire “threshold crossing signals” on Inputs 0-to-7, to be permanently armed, to untristate the TTL outputs, and to return data from the Event Buffer when queried (reenabling channels following query).
- Page 168 (Figure 5). c. Set the function generator to complement (or invert) the output pulse. d. Reset the VX4287 to the power-on default state, to close isolation relays for the channels specified, to trigger on a negative 100 mV input level, with a capture equation specified to acquire “threshold crossing signals”...
- Page 169 Clip Lead to GND (P4-pin 42). 4. Set the Calibrator to +50.0 V DC. 5. Using the following commands, set the VX4287 to the power-on default state, to close the designated isolation relays, to make a voltage measurement on the specified channels (0-to-7 in this first pass; 8-to-15, 16-to-23, 24-to-31 on subsequent passes), to use the high voltage range, and to report the results using labels.
- Page 170 13. Short together the positive and negative inputs of channels 8-to-15 with the small alligator clip. 14. Move the red Clip Lead from the Voltage Calibrator from the 0-to-7 inputs to the 8-to-15 inputs of the VX4287 then repeat steps 3-to-11, substituting channel designation in place of 15.
- Page 171 All prerequisites listed on page A–22 1. Attach the DD-50S Interconnect Assembly to P4 as shown in Figure 5. 2. Connect the Voltage Calibrator to input channels 0-to-7 of the VX4287 using a Dual-Banana connector a Coaxial cable, and a BNC to Clip Lead adapter.
- Page 172 (P6-F, see Figure 5) using a coaxial cable and a BNC to Clip Lead adapter. 2. Reset the VX4287 to the power-on state, to enable the TTL Outputs, to assert the 500 kHz Time Tag signal on the EQU OUT connector and on TTL Outputs 15 and 31.
- Page 176 The VX4287 Module must be calibrated every twelve months for the module to meet its published accuracy specifications. Calibrate the VX4287 Module at the temperature at which it will be operating. Calibration to the published accuracy specifications has been performed at Tektronix Inc. prior to shipping. Allow a ten...
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