Tektronix VX1401 User manual

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Instra

User Manual
Tektronix
/
VX1401
C Size Mainframe
bus
Please check for change information
at the rear of this manual.
First Edition: Junc 1994
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Copyright O Tektronix, Inc. 1994. A11 rights reserved.
Tektronix products are covered
by US. and foreign patents. issued and pending. Information in this publication supercedes
that in all pre~iouslypublished material. Specifications and price change privileges reserved.
, ,,
f )I
Printed in the U.S.A.
Tektronix, Inc.,
P.O. Box 1000, Wilsonville, OR 97070-1000
EKTRONIX and TEK are registered trademarks of Tektron~x.Inc.
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WARRANTY 1 . I c J', , /
, I),
Tektron~xwarrants that thi\ product wlll be tree from detect\ in matellals and workman\h~pfor 3 ~erlogtof thee,
(3) year5 from the date ot sh~pmentIt any such product ploves defect~vedur~ngth15warranty period. Tektron~x.
at ~tsoptlon, e~ther
will repalr the detectlbe product wlthout chalge tor part5 and labor, or w~llprov~de a
, {IF:
replacement In exchange to1 the detect~veproduct a I/
,%
)I1 I''
In order to obtain service under this warranty. Customer must notify Tektronix of the defect before the expiration
,. : >>iJ',;>i-i
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by Tektronix, with
shipping chargesprepaid. 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.
This warranty shall not apply to any defect. failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a)to repair damage
resulting from attempts by personnel other than Tektronix representatives
to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment: or c) to service a
product that has been modified or integrated with other products when the effect of such modification or
integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF
ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS
-
DISCLAIM ANY IMPLIEDWARRANTIESOFMERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR
BREACH OFTHIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL,INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF
WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OFTHE POSSIBILITY OF
SUCHDAMAGES.
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Table of Contents
Getting Started
.....................................................
Product Description 1 . 1
...............................................
System Configuration 1 . 1
Backplane ......................................................... 1-2
......................................................
Compatibility 1 . 2
Installation
............................................................. 1 . 3
Operating Basics
FunctionalOverview .................................................... 2-1
Power Budget
........................................................... 2-1
Grounding
............................................................. 2-1
................................................
5V Standby Power Supply 2 . 1
Fuses
.................................................................. 2- 1
230VoltOperation ...................................................... 2-2
Powercords
............................................................ 2-2
Backplane
............................................................. 2-4
BackplaneJumpers
...................................................... 2-4
Cooling ................................................................ 2-5
.....................................................
Syntax and Commands
3 . 1
..........................................................
Status and Events
3 . 1
...................................................................
Examples 5-1
.................................................
Appendix A . Specifications
A . 1
.......................................
Appendix B . Input/Output Connections A . 5
........................................
Appendix C . Power Budget Worksheet A
. 7
Appendix D . Servicing
.................................................
Adjusting Power Supply A
. 9
............................................ .
Selecting Cooling Fan Speed A 11
...................................................
Cleaning Air Filters A
. 11
.............................................
Assembly And Disassembly A
. 12
...............................
.
Appendix E (Option 1 M) MATE Applications A . 15
.............................................
Appendix F . Replaceable Parts A
. 17
......................................................
Appendix G . Options A
. 19
..................................................................
Glossary A . 21
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Operators Safety Summary
The general safety information inthis summary is for both operating and servicing personnel.
Additional specific warnings and cautions are found throughout the manual where they apply,
and may not appear in this summary.
TERMS
InThis Manual
WARNING statements identify conditions or
practices that could result in personal injury or
loss of life.
CAUTION statements identify conditions or
practices that could result in damage to the
module or other property.
Marked on the Module
DANGER indicates a personal injury hazard
immediately accessible as one reads the
rnarking.
CAUTION indicates a personal injury hazard
not immediately accessible as one reads the
marking, or a hazard to property, including the
module itself.
SYMBOLS
InThis Manual
This symbol indicates where
applicable cautionary or other
information is to be found.
0 This symbol indicates where
special explanatory information is
included in the manual. There is
no caution or danger associated
with the information.
Marked on the Module
! DANGER - High Voltage.
Protective ground (earth)terminal.
69
ATTENTION - Refer to the
manual.
0
Refer to manual before using.
Power Source
This module is intended to operate in a
mainframe whose power source does
not apply more than
250V rms between
the supply conductors or between
either supply conductor and ground.
A
protective ground connection through
the grounding conductor in the power
cord(s) is essential for safe operation.
Grounding the Module
This module is grounded through the
grounding conductor of the mainframe
power cord(s). To avoid electrical
shock, plug the mainframe power
cord(s) into a properly wired receptacle
before connecting to the module
connectors.
A protective ground
connection through the mainframe is
essential for safe operation.
Danger Arising from Loss of Ground
Upon loss of the protective-ground
connection, all accessible conductive
parts can render an electric shock.
Use the Proper Fuse
To avoid fire hazard, use only fuses
specified in the module parts list. A
replacement fuse must meet the type,
voltage rating,
and current rating
specifications required for the fuse that
it replaces.
Do Not Operate in Explosive
Atmosphere
To avoid explosion, do not operate the
module in an explosive atmosphere.
Do Not Remove Covers or Panels
To avoid personal injury, the module
covers should be removed only by
qualified service personnel. Do not
operatethe module without covers and
panels properly installed.
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Preface
Conventions
This is the user manual for the VX1401 Mainframe.
) Jh
Please read and follow all instructions for installation and
configuration.
This manual assumes you are familiar with VXIbus instruments
and operation, and with the purpose and function of this
instrument. The
Operatrng Basics section presents an overview
of this instrument's operation.
The names of all switches, controls, and indicators appear in
this manual exactly as they appear on the instrument.
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Getting Started
Product Description
System Configuration
The Tektronix/CDS Instrument on a Card (IAC) System is an easy-to-use
integrated modular system for implementing automatic testing, data acquisition
and control, and remote-monitoring instrumentation systems. Based on IAC
technology, the system permits the compact, inexpensive "test station in a box"
approach to ATE, instead of bulky, expensive, "rack and stack" stations.
Versatile and rugged, the Tektronix/CDS IAC system provides significant
advantages in space, cost, and performance.
One of the primary building blocks for this system is a Tektronix/CDS VXIbus
mainframe for C size and smaller modules. Tektronix/CDS offers two versions
of a C size mainframe with 13 slots capacity. (A five-slot C size mainframe, the
VX1405, is also available.) The two 13-slot mainframes, the VX1400 and
VX1401, provide alternatives not only in cost, power, and weight, but also in
dynamic current and noise performance.
The VX1400 Mainframe provides slightly more useable power (702 Watts vs. 570
Watts). At lower cost and weight, though, the VX1401 Mainframe is the
preferred model in most other respects. By making more efficient use of
available power, the VX1401 provides substantially better dynamic current
capacity and low noise levels over a wider range of instrument loading than the
VX1400. The lower power capacity also permits extending the operating
temperature range to -10" to 55" C (from 0" to 50" C).
The VX1400 or VX1401 Mainframe is designed to hold up to 12 instrument
modules plus a Resource Manager/Slot 0 module, such as the Tektronix/CDS
VX4521 Advanced Slot 0 Device/Resource Manager Module, for use in IEEE-488
applications with an external system controller. Alternately, the mainframe can
use an embedded PC-AT-386 compatible system controller/slot 0 unit, such as
the Tektronix/CDS VX4544. The VX4544, with a hard drive, floppy drive, and
a full-size expansion slot, occupies three instrument slots, leaving ten slots for
instrument modules.
The VX1401 is delivered complete with backplane, power supplies, all chassis
hardware, and a decorative front
ane el. The unit also includes rack mounting
hardware so that it may be mounted in a standard 19 inch NEMA equipment
rack. Sufficient room (3 inches) is provided between the front panel and the
metal front panel of the IAC modules to conceal cables being routed to the
UUT
(Unit Under Test) or other instruments. Cables are normally routed from
connectors located on the module front panels through an integral cable tray to
the rear of the chassis. In addition, vertical cabling between instruments in
VX1401 Mainframes is provided by cabling openings at the top and bottom of
the chassis in front of the instrument front panels. (Note that the unit may be
operated without the decorative panel installed. The thermal integrity of the
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Section 1
VX1401 will not be affected if filler panels are properly installed in empty
slots.)
The VX1401 Mainframe with its installed plug-in IAC modules operates as an
integrated unit controlled by a user-defined system controller, which may be an
external device or an internal embedded computer. All TektronixICDS Series
IAC Modules are fully compatible with the VX1401. In addition, CDS 53/63
series modules may also be utilized by using a 73A-853 Adapter Module.
Backplane
The VX1401 eight-layer monolithic backplane supports all of the VXIbus system
architecture features designed to facilitate system performance, including fast
bus arbitration, asynchronous bus structure, powerful capabilities for handling
interrupts, and non-multiplexed paths for address and data. All of the
specifications for signal timing, noise, crosstalk, termination, driving, and
loading fully comply with the VXIbus Standard. The VXIbus signal lines
specified for P2 (MODID, CLK10, LBUS, SUMBUS, TRIG lines, etc.) are
incorporated into the backplane.
Compatibility
The required VMEbus terminations are also included as part of the backplane.
In addition, the VMEbus Specification requires that certain signals (IACK*,
BGINX*, BGOUTX*) be daisy-chained along the backplane. The provisions for
meeting this requirement are accessible through the front of the VX1401
Mainframe.
The VX1401 Mainframe supports all of the VXIbus requirements for a C size
mainframe. All VXIbus defined voltages are supplied (+5, -5.2, -2, +12, -12, +24,
and -24 Volt power supplies are mounted in the VX1401). The VX1401 is switch
-
selectable for either 115 or 230 Volts AC at frequencies ranging from 45 Hz to
440
Hz.
Cooling is supplied by four internally-mounted fans, one of which is dedicated
to cooling the power supplies. This results in a cooling capacity of an average of
35 Watts per slot for typical VXIbus IAC modules (455 Watts for a fully loaded
system), based on a maximum temperature rise of 10" C in the card cage and an
ambient temperature range of -10" to +55" C. The VX1401 will operate in
environmental conditions from -10" to +55" C, and in relative humidity ranging
from 09'0 to +95%. Its rugged 0.125 inch thick aluminum skin permits operation
in physically demanding applications.
Tektronix/CDS offers a variety of instrument and interface cards compatible
with the VX1401, which are designed to accomplish a wide range of test and
measurement functions. The current copy of the Tektronix/CDS Information
and Ordering Guide gives detailed specifications and functional descriptions of
available IAC modules.
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Section 1
Installation
To mount a mainframe in a standard 19 inch rack, refer to the diagrams and the
steps below. To remove a mainframe, reverse these steps. The tools required are
a #2 Phillips-head screwdriver, a flat blade screwdriver, and a 3/8 in. wrench.
1.
The VX1401 Mainframe is shipped with the mainframe chassis slides
attached when ordered as part of a configured system. Remove the
cabinet slide sections, the mounting brackets, and the separately-bagged
hardware (nuts, bolts, and washers) from the shipping container. Save the
shipping container for future use. Any hardware remaining after
installation may be used as spares.
2. Referring to Figure
1, attach the front and rear mounting brackets to the
cabinet slide section. The rear brackets are longer than the front brackets.
Leave the hardware loose. If more than one mainframe is to be installed,
determine the position of all mainframes before installing the first one.
NOTE:
The mounting holes on the rails of a standard 19
inch rack are in an asymmetric pattern. Use the
correct mounting pattern for the mainframe to be
installed.
Be sure that the TOP and TWO BOTTOM slots on the mounting bracket are
aligned with a tapped
#lo-32 hole on the rack rail. The second slot will
partially cover the hole beneath it. If the slots are not properly aligned,
installation of more than one mainframe will not be possible.
3. Adjust the length of the combined mounting brackets and cabinet slide
section. Position the rear mounting brackets at the back of the cabinet.
Position the front mounting brackets against the rear side of the cabinet
front mounting rails, approximately in line with the front of the cabinet
slide section. Tighten the hardware once the brackets are adjusted.
4.
There should be a distance of 1.985 in. from the bottom of the mainframe
to the centerline of the bottom slot of the mounting bracket. Mount the
cabinet slide section to the cabinet as shown. Be sure that the cabinet slide
sections on both sides are mounted at the same height.
Tomake any necessary vertical adjustments, loosen the #lo-32 screws that
secure the rack slide mounting brackets to the rack mounting rails. Move
the mainframe into position and tighten the screws. The vertical
adjustment range is approximately 0.06 inches.
5.
Check all of the hardware to see that it is tight and secure.
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Section I
I WARNING )
Inserting the VX1401 Mainframe into the cabinet
requires
two people: one tohelp lift and guide the
card cage chassis slide wheel bearings into the
cabinet slide section, and one to lift the
mainframe. Because ofthe size and weight ofthe
main
frame, injury mayresult ifone person tries lo
install it alone.
6. Fully extend the sliding section of one of the cabinet slides until it locks
into place. Repeat this procedure with the other cabinet slide.
7. Lift the VX1401 Mainframe by its handles, and insert both attached
chassis slide sections into the sliding sections of the two cabinet slides.
Make sure that the chassis slide wheel bearings are engaged and are riding
freely.
8. Completely insert the VX1401 Mainframe into the rack by depressing both
chassis member latches from their locked position, and pushing the
mainframe until its rack ears are flush against the cabinet mounting rails.
Additional mainframes can now be installed, if desired.
To install another mainframe above or below the first one, find the next set of
properly aligned mounting holes in the rack rails, and install the mounting
brackets of the mainframe rack slide assemblies as described above. If
necessary, adjust the height of either or both mainframes for proper vertical
clearance between them.
Repeat as needed to install all remaining mainframes.
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Section 1
,- CARD CAGE
CABINET MTG RAIL REF
NK)UNT I NG BRACKET
' FRONT OR REAR
---------------
Fi~ure I: Cabinet Mounting
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Section 1
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Operating Basics
Functional Overview
Modules installed in the VX1400 are programmed by ASCII characters issued
from the system controller to the modules
via the module's VXIbus commander
and the VXIbus mainframe backplane. Refer to the manual for the VXIbus
device that will be the commander for details on the operation of that device.
Power Budget
The VX1401 has two power supplies located at the rear of the mainframe. At an
ambient temperature over +55"C, the power supplies are rated at 500 W. At
ambient temperatures of less than +55"C, the supplies are rated at 570
W. The
VX1401 Mainframe is designed to dissipate an average of
35 W per slot with a
10°C temperature rise within the card cage. The Power Budget Worksheet in
Appendix A should be filled out before applying power to the card cage for the
first time to ensure that individual power supply voltages will not be exceeded.
Grounding
A terminal block, providing access to chassis ground and power-supply ground,
is located at the rear of the card cage. Terminal
1, labeled PSGND, is power
supply ground and Terminal
2, labeled ACGND, is chassis (water-pipe)ground.
The system is shipped with a shorting bar between Terminals 1and
2,
connecting the two grounds together. The shorting bar may be removed to float
the power supplies.
At frequencies over 63 Hz, leakage current becomes significanr
and agency safety approvals no longer apply. Never operate
the
VX1401 without the safety ground properly connected.
5V Standby Power Supply
The terminal block, located at the rear of the VX1401 Mainframe, has a screw
terminal labeled +5V
SBY that can be used to connect a 5V standby power
supply to the VX1401 Mainframe. The total current on the 5V standby input
may not exceed 0.5 amps.
Fuses
Each power supply has a fuse. For 115 V operation, fuse F1, located toward the
side of the mainframe, should be a 7A fuse.
F2, located toward the center of the
mainframe, should be a 5A fuse.
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opera tin^ Basics
For 230 V operation, fuse F1 should be a 3A fuse, and F2 should be a 2.5A fuse.
The unit is shipped with the appropriate fuses for the country it is being
shipped to.
230 Volt Operation
The VX1401 is shipped from the factory with the ac input voltage set for the
appropriate ac voltage of the country it is being shipped to. If the unit's
operating voltage must be changed for any reason, the
AC Select switch on the
rear panel of the unit must be changed. To change the operating voltage, use a
slotted screwdriver to move the switch to the desired position
(I 15 V or 230 V).
For continued protection against fire, replace the fuse with the specified values
when changing to
230V operations.
Unplug the unit from the electrical outlet before
moving the switch,or the unit will be damaged.
Since all of the cooling fans are operated on 24V dc, no other modifications to
the unit are required.
Power Cords
I WARNING 1
Thecard cage operates from a single-phasepower source, using
a detachable three-wire power cord with a two-pole, three-
terminalgrounding typeplug. Thevoltage toground (earth)from
either pole of thepower source must not exceed
250 volts.
Before you connect the mainframe to thepower source, be sure
that the AC Select switch on the rear fan plate is set to match
the power source, and that the power cords have suitable plugs
(two-pole, three-terminal, GROUNDING type).
All accessible conductive parts of the card cage are directly
connected through thegrounding connector of thepower cord to
the grounding contact of the power plug. Therefore, the power
plug must be inserted into a mating receptacle withagrounding
contact.
Do not defeat the grounding connection. Any
interruption in the grounding connection can create an electric
shock hazard.
Card cages are shipped with the required power cords (as ordered by the
customer). Information on the available power cords is shown in the following
table. Contact your Tektronix representative or local Tektronix Field Office for
additional power-cord information.
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Operating Basics
POWER CORD AND
PLUG INFORMA TION
I PLUG LINE REFERENCE OPTION
CONFIGURATION USAGE VOLTAGE STANDARDS NUMBER
North ANSI C73.11
American 120V NENA 5-15-P Standard
120/15A
Universal
Euro 240V CEE
24OVl (7),ll.lV.Vll A1
10-16A
UK BS 1363
240V 240V IEC 83 A2
13A
Australian
24OVl 240V AS C112 A3
10A
North
American 240V ANSI C73.20
240V/ NEMA 6-15-P A4
15A IEC 83
Switzerland
220Vl 220V SEV A5
6A
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Operating Basics
Backplane
The backplane is a circuit board with two 96-pin DIN gas-tight connectors (PI,
P2) for each slot. Connector PI is located on top of the backplane, and
connector
P2 is located on the bottom of the backplane.
The backplane is fully VXIbus-compatible. The specifications for timing, noise,
crosstalk, termination, driving, and loading all comply with the VXIbus
Specification. Refer to Appendix B for signal names. For details on the
definition of these signals, refer to the
IEEE 1014-1987 Specification for the
VMEbus signals and to the VXIbus Specification for definition of the VXIbus
signals.
The backplane contains circuitry on each end
of the board which provides the
required signal-line-termination networks as described in IEEE 1014-1987. The
VXIbus signals requiring termination are also terminated by circuitry on the
backplane.
A Power Monitor circuit is included which meets the specifications in IEEE-
1019-1987. The reset time on power-up is about 250 msecs. The delay from
ACFAIL* to reset on power failure is approximately 8 msecs.
The backplane also contains the VXIbus-required MODID termination resistor,
differential
ECL active clock drivers, and bus termination and protection.
A ground surface is provided around each connector to allow modules with a
totally enclosed shield to make contact with the backplane ground. The VXIbus
recommended clearance is provided.
-
Backplane Jumpers
The P1 bus on the backplane includes five daisy-chained signals for bus
arbitration and interrupt handling, as described in IEEE 1014-1987. If an empty
slot appears between used slots in the chassis, these daisy-chained signals must
be jumpered across the empty slot in order to allow the signals to propagate
down the backplane.
Thirty molded jumpers (CDS Part #45OO
1 - 10201, packaged separately) are
supplied with the mainframe for jumpering backplane signals.
Individual molded jumpers can be placed on the backplane's jumper pins
between each BGIN to BGOUT signal (four jumpers), and between the IACKIN
to IACKOUT signal (one jumper). These jumper pins are accessible through the
front of the VX1401 Mainframe. The five sets of pins for a slot are to the
left
of the PI connector for that slot.
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Operating Basics
Sinnal
BGOIN (B4)
(B5)
BGl
IN (B6)
(B7)
BG2IN
(B8)
Jum~er
to Signal
BGOOUT
BG 1OUT
Cooling
Cooling for the VX1401 Mainframe is provided by three 24V dc fans located at
the rear of the chassis just above the power supply. The air intake for the
blowers is through louvers located on the sides of the card cage. The exhaust is
through the three fans on the back panel of the card cage.
A fourth fan is
located on the right side of the card cage and provides air to the power supplies.
The fan speed will increase as the air temperature in the card cage increases.
NOTE:
In some operating environments it may be necessary to have the
VX140l'scooling fans running at full speed all the time. Refer
to the Coolinn Fan S~eedSelection section in the Service
Manual for instructions on how to set the fans to full speed.
The air going across the IAC modules is filtered by a large rectangular internal
filter in a tray below the bottom of the IAC modules and above the cable tray.
A filter for the power supply fan is mounted externally on the side of the card
cage. The filters should be cleaned regularly, with a schedule appropriate to the
operating environment. See the Cleaning Air Filters section in the Service
Manual.
The cooling design of the VX1401 Mainframe relies on the
front panels of the individual modules in the card cage to
completely enclose the front opening of the card cage. If any
slot in the card cage is not occupied by a module with a front
panel, a blank front panel must be installed for that slot.
Tektronix/CDS provides the required number of blank panels
for each card cage shipped, based on the number of cards
ordered. The plexiglas front panel is cosmetic, and is not
required for proper cooling.
The VX1401 Mainframe delivers cooling capacity evenly across all thirteen slots.
The graph shown in Figure 4 is accurate for any position in the card cage.
To determine if a VXIbus device will operate in the VX1401 Mainframe, the
system integrator must obtain the cooling requirement of the module to be used.
Take the published pressure drop in inches of water and check the cooling
capacity at that pressure drop.
If the VX1401 can deliver an equal or greater
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