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Section 3-CTT
and WR Options
24X5B12467B Options Service
SPECIFICATION
NOTE
The External Frequency Reference Option (Option IE) is only available to instruments that have
Counter/Timer/Trigger (Option 06) or Counter/Timer/Trigger with Word Recognizer (Option 09).
INTRODUCTION
The
Counter/Timer/Trigger
(Option 06), Counterl-
TimerITrigger with Word Recognizer (Option 09), and the
CounterITimerlTrigger with External Frequency Reference
(Option 1E) add the following four capabilities to the
TEKTRONIX 24X5B and 24678 Oscilloscopes:
1. Precision time-interval measurement.
2. Event and frequency counting.
3. Delay-by-events triggering.
The
CounterITimerlTrigger
(CTT),
the
Counterl-
TimerITrigger with Word Recognizer (WR), and the
Counter/Timer/Trigger with External Frequency Reference
(EFR) options use the standard instrument's alphanumeric
CRT
readout
to
display
configuration menus and
function results.
The oscilloscope Operators manual should be consulted
for operating information regarding the standard instru-
ment. The operation and specifications of functions not
described in this manual remain unchanged.
There are currently no options available for the CTT,
WR, or EFR. Also, Option 11 (rear panel probe-power con-
nectors) described in the 24X5B and 2467B manuals, and
Option 09 (Word Recognizer) described in this manual, are
not available in the same instrument.
4. Logic triggering.
ACCESSORIES
The 17-bit Word Recognizer probe of Option 09
extends the capabilities of these functions. The functions
described in this manual which use the Word Recognizer
require the Word Recognizer Option 09 and the 17-bit
Word Recognizer probe.
The External Frequency Reference (Option 1 E) changes
only the accuracy and resolution of the above frequency
measurement mode. All other measurements of the CTT
are not affected.
The External Frequency Reference signal input connec-
tor takes the place of the "Word Recognizer Outn
connector. No Word Recognizer Out signal is available
with the External Frequency Reference option. All other
aspects of the Word Recognizer function remain the same.
Standard Accessories
In addition to the standard accessories listed in the
oscilloscope manuals, the following are provided with each
instrument
containing
the
Counter/Timer/Trigger
(Option 06), including CTT with EFR (Option 1 E):
20
grabber tips
2
1 0-inch, 10-wide combs
Each instrument containing the Word Recognizer
(Option 09) is provided with the following standard acces-
sory
in
addition
to
those
mentioned
for
the
CounterITimerlTrigger :
1
Word Recognizer probe
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