Tektronix Switch VX4353 User Manual

User Manual  
VX4353  
Relay Switching Module  
070-9121-02  
This document supports firmware version 1.00  
Warning  
The servicing instructions are for use by qualified  
personnel only. To avoid personal injury, do not  
perform any servicing unless you are qualified to  
do so. Refer to the Safety Summary prior to  
performing service.  
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Contacting Tektronix  
Product  
Support  
For application-oriented questions about a Tektronix measure-  
ment product, call toll free in North America:  
1-800-TEK-WIDE (1-800-835-9433 ext. 2400)  
6:00 a.m. – 5:00 p.m. Pacific time  
Or contact us by e-mail:  
For product support outside of North America, contact your  
local Tektronix distributor or sales office.  
Service  
Support  
Contact your local Tektronix distributor or sales office. Or visit  
our web site for a listing of worldwide service locations.  
In North America:  
For other  
information 1-800-TEK-WIDE (1-800-835-9433)  
An operator will direct your call.  
To write us Tektronix, Inc.  
P.O. Box 1000  
Wilsonville, OR 97070-1000  
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EC Declaration of Conformity  
We  
Tektronix Holland N.V.  
Marktweg 73A  
8444 AB Heerenveen  
The Netherlands  
declare under sole responsibility that the  
VX4353  
meets the intent of Directive 89/336/EEC for Electromagnetic Compatibility and Low  
Voltage Directive 73/23/ECC for Product Safety. Compliance was demonstrated to the  
following specifications as listed in the Official Journal of the European Communities:  
EMC Directive 89/336/EEC:  
EN 55011  
Class A Radiated and Conducted Emissions  
EN 50081-1 Emissions:  
EN 60555-2  
AC Power Line Harmonic Emissions  
EN 50082-1 Immunity:  
IEC 801-2  
IEC 801-3  
IEC 801-4  
IEC 801-5  
Electrostatic Discharge Immunity  
RF Electromagnetic Field Immunity  
Electrical Fast Transient/Burst Immunity  
Power Line Surge Immunity  
Low Voltage Directive 73/23/EEC:  
EN 61010-1/A2 1995 Safety requirements for electrical equipment for  
measurement, control, and laboratory use  
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Appendix E – Performance Verification Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A – 15  
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To avoid potential hazards, use this product only as specified.  
Installation Category Description  
CAT II LocalĆlevel mains (wall sockets).  
Equipment at this level includes appliances,  
portable tools, and similar products. Equipment  
is usually connected by a power cord.  
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CAT II, 48 V dc  
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V1.4  
V1.4  
All VXIbus V1.4 commands are supported.  
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Littelfuse  
5 A 125 V fast blow  
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To avoid electric shock, tighten the module mounting screws after  
installing the module into the mainframe to ensure that the front panel is  
properly grounded.  
!
There are two labeled printed ejector handles on the card. To install the  
card correctly, make sure the ejector labeled “VX4353” is at the top.  
Note.  
Note.  
In order to maintain proper mainframe cooling, unused mainframe slots  
must be covered with the blank front panels supplied with the mainframe.  
Verify that the mainframe is able to provide adequate cooling and power  
with this module installed. Refer to the mainframe Operating Manual for  
instructions.  
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070-9121-02  
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Appendix E  
Performance Verification Procedure  
The performance verification procedure verifies that the module is operating within  
specification.  
Conventions Used In This Procedure  
All control of the VX4353 Module will be accomplished through a VXI Slot 0 device.  
ASCII characters will form the commands sent to control the module and ASCII charac-  
ters will be read from the module.  
Throughout this document, software writes to the VX4353 Module will be shown as:  
Send “Q1lf”  
where Q1lf is the command (Query relay one) terminated with a linefeed character (lf).  
Send all commands exactly as shown.  
Reads from the module are shown as:  
Read “0 crlf”  
Where 0crlf is the ASCII string returned from the VX4353 Module, terminated with a car-  
riage return and linefeed (crlf). The ASCII string returned from the module will be exactly  
as shown.  
Unless noted, all commands are sent to the VX4353 Module and all ASCII strings read  
are read from the VX4353 Module.  
Two characters are used throughout the communication sequences: “cr” is the carriage  
return character (character 13) and “lf” is the line feed character (character 10). These  
characters are the terminating characters for communication. These characters are shown  
throughout this document in the font shown here. Most reads from the VX4353 Module  
are terminated with both characters and are shown as “crlf”. Writes to the module require  
only a “lf”, but both characters may be used.  
An ASCII upper case letter “O” will be shown as “O” whereas a ASCII zero will be  
shown as “0”.  
VX4353  
Page A – 15  
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Equipment Required  
Table 1–1 lists the equipment required for the performance and verification procedure.  
Table 1–1: Equipment Required  
Required tools and equipment  
Part number  
VXI Mainframe (such as the Tektronix VX1410)  
n/a  
n/a  
VXI Slot 0 with resource Manager (Tektronix VX4521)  
and appropriate cables and interface cards.  
Digital Multi Meter (DMM) with 4-wire Ohm capability, and standard lab equipment  
the ability to read more then 10 Gigohms.  
Connector for VXI 1780S  
n/a  
n/a  
Talker/Listerner (Send/Read)  
Connector Wiring  
1. Using the VX1780S connector, wire pins: 1, 3, 5, 7, 9, 11, 13, 15, 18, 20, 22, 24, 26,  
27, 30, and 32 together, leaving a “pig tail” to connect to the DMM.  
2. Wire pins: 2, 4, 6, 8, 10, 12, 14, 16, 19, 21, 23, 25, 27, 29, 31, and 33 together,  
leaving a “pig tail” to connect to the DMM.  
3. Plug this connector into P4 on the VX4353.  
Performance Verification Procedure  
4. Apply power to the VXI system and wait 10 seconds.  
a. Only the green PWR LED will be lit.  
b. Send “Slf” (Set all relays) to the VX4353.  
5. Apply power to the VXI system and wait 10 seconds.  
a. Only the green PWR LED will be lit.  
b. Send “Slf” (Set all relays) to the VX4353.  
6. Verify that all LED’s for CH00 through CH31 are lit.  
7. Send “Rlf” (Reset all relays) to the VX4353.  
8. Verify that all LEDs for Ch00 through CH31 are out.  
Page A – 16  
VX4353  
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Digital Multi-Meter Connection and Set Up  
1. Connect the DMM signal high and input + side to the “pig tail” that is connected to  
the VX1780S connector pin-1.  
2. Connect the DMM signal low and input – side to the “pig tail” that is connected to  
the VX1780S connector pin-2.  
3. Set the DMM to the 4 wire Ohms mode, and select autorange.  
Testing The Relay Resistance  
1. Send “C0lf” (Set relay CH00) to the VX4353.  
2. Send “Q0lf” (Query relay CH00) to the VX4353.  
3. Read “1 crlf” (Relay CH00 is closed).  
4. Verify that the DMM reads less then 300 milliohms.  
5. Send “O0lf” (Open relay CH00) to the VX4353.  
6. Send “Q0lf” (Query relay CH00) to the VX4353.  
7. Read “0 crlf” (Relay CH00 is Open).  
8. Verify that the DMM reads greater than 10 gigohms.  
9. Repeat steps 1. through steps 8. for relays CH01 through CH15.  
a. Substitute Cxlf and Oxlf for the appreciate relay. (x = relay to close or open).  
10. Remove the connector from P4 and plug connector into P5.  
11. Repeat steps 1. through steps 8. for relays CH16 through CH31.  
a. Substitute Cxlf and Oxlf for the appreciate relay. (x = relay to close or open).  
VX4353  
Page A – 17  
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Testing The Delay Command  
1. Send “Rlf” (Reset the VX4353) to the VX4353.  
2. Send “D1000C0C1” (Reset, Close CH00 and CH01 on the VX4353) to the VX4353.  
a. Monitor the time difference between the time it takes for the CH00 LED to light,  
and the time for the CH01 LED to light.  
b. If working correctly, this time will be approximately 1 second.  
3. Send “Tlf” (Delay Time of the VX4353) to the VX4353.  
4. Read “1000 crlf” (Time Delay programmed to 1000 milliseconds).  
VX4353  
Page A – 18  
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