Keithley 7070, Instruction Manual

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SECTION 1
General Information
1-1
1.1 INTRODUCTION
This section contains general information about the
Model 7070.
Section 1 is arranged in the following manner:
1.2 Features
1.3 Warranty Information
1.4 Manual Addenda
1.5 Safety Symbols and Terms
1.6 Speci
Þ cations
1.7 Unpacking and Inspection
1.8 Repacking for Shipment
1.2 FEATURES
The Model 7070 Universal Adapter Card provides two func-
tions. As an extender card, the unit is designed for back-
plane extension using a 10-foot ribbon cable assembly. The
second function is as prototyping or breadboarding card,
allowing for user-installed relays or other circuits for cus-
tom matrix designs.
There are now two versions of the Model 7070. The standard
Model 7070 Universal Adapter Card includes ribbon cables
for extender card operation. All sections of this manual
apply to this version of the card. The Model 7070-PCA
Prototype Circuit Assembly is intended for use only as a
prototyping card and does not include extender cables.
Those with a Model 7070-PCA should disregard all
references in this manual to extender card operation. Major
sections that do not apply to the Model 7070-PCA include:
paragraph 2.4, Table 5-2, and the extender board component
layout and schematic located at the end of Section 5.
Other key features of the Model 7070 Universal Adapter
Card include:
•
Detachable 10-foot ribbon cable assembly for extender
card operation.
•
Prototyping area consisting of a grid of holes on 0.1 in.
centers for relay and component mounting.
•
96 relay drivers, each with 140mA current sink capability.
•
On-card decoding circuity to allow mainframe front
panel and IEEE-488 control of user-installed relays and
circuits.
•
Plated-through holes and pads for easy access to back-
plane pathways and relay drivers.
•
Screw-terminal connections using quick-disconnect con-
nectors for row and column connections.
•
8
×
12 (eight row by 12 column) matrix implementation
with user-supplied relays or circuity.
•
Guarding pathways are maintained on the card.
1.3 WARRANTY INFORMATION
Warranty information is located on the inside front cover of
this instruction manual. Should your Model 7070 require
warranty service, contact the Keithley representative or
authorized repair facility in your area for further
information. When returning the card for repair, be sure to
Þ ll out and include the service form at the back of this
manual in order to provide the repair facility with the
necessary information.
1.4 MANUAL ADDENDA
Any improvements or changes concerning the adapter card
or manual will be explained in an addendum included with
the unit. Be sure to note these changes and incorporate them
into the manual before using or servicing the unit.
1.5 SAFETY SYMBOLS AND TERMS
The following symbols and terms may be found on an
instrument or used in this manual.
The symbol on an instrument indicates that the user
should refer to the operating instructions located in the
instruction manual.
The symbol on an instrument shows that high voltage
may be present on the terminal(s). Use standard safety pre-
cautions to avoid personal contact with these voltages.
The
WARNING
heading used in this manual explains dan-
gers that might result in personal injury or death. Always
read the associated information very carefully before per-
forming the indicated procedure.
!