Rear Panel; Side Panel - Tektronix 2221 Operator's Manual

Controls , Connectors, and Indicators - 2221 Operators
on 3. On
the
first plot,
the graticule and
waveform (s) are drawn first , then the readout .
intensity -modulation pattern
waveform .
the
displayed
C
4. The
instrument then acquires another
waveform ( s ) and plots only the newly acquired
data (waveform ).
39
Fuse Holder-Contains the ac -power - source fuse .
See the rear panel nomenclature for fuse rating and
line voltage range .
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]
5. Acquisitions and waveform plots continue
as long as valid triggers are available.
40
Detachable Power Cord Receptacle- Provides the
connection point for the ac power source to the
instrument .
REAR PANEL
See Figure 3-6 for the location of items 38 through 40 .
SIDE PANEL
The standard side panel includes one AUXILIARY CON
NECTOR . Refer to Figure 3-7 for the location of item 41 .
NOTE
38 EXT Z -AXIS INPUT Connector - Provides an input
connector to allow external signals to be applied to
the Z-Axis circuit to intensity modulate the NON
STORE waveform display . Applied signals do not
affect the display waveshape. External signals with
fast rise and fall times provide the best defined
intensity modulation . Noticeable intensity modulation
will be produced at normal viewing intensity levels by
a 5 V p - p signal . The Z-Axis signals must be time
related to the trigger signal to obtain a stable
To meet EMI regulations and specifications, use the
specified shielded cable and metal connector housing
with the housing grounded to the cable shield for
connections to the AUXILIARY CONNECTOR .
Л
41
AUXILIARY CONNECTOR- Provides connections
for an X-Y Plotter and an External Clock input . The
connector is described in Table 3-5 .
39
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CAUTION
FOR CONTINUED FIRE PAOTECTION
REPLACE ONLY WITH SPECIFIED
TYPE AND RATED FUSE. DISCONNECT
POWER INPUT BEFORE REPLACING FUSE.
CAUTION
TO AVOID ELECTAIC
SHOCK. THE POWER
CORO PROTECTIVE
GROUNDING CONOUCTOR
MUST BE CONNECTED
TO GROUNO.
X- Y Plotter Connections - Provide connections
for X-Axis output , Y-Axis output , and Pen Lift
control to drive an external X-Y Plotter. All
displayed waveforms are transmitted over the
Plotter Interface . The settling time allowed for
each movement is approximately proportional to
the distance of the movement . Connections for
LINE VOLTAGE RANGE FUSE 250V
90-250V AC ZA SLOW
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Table 3-5
EXT Z AXIS INPUT
10KA . POSITIVE GOING
INPUT DECREASES
INTENSITY .
5 VOLT P.P CAUSES
NOTICEABLE MOOULA .
TION AT NORMAL
INTENSITY ,
00 NOT REMOVE
COVER . REFER
SERVICING TO
QUALIFIED PERSONNEL.
Auxiliary Connector
S30V PEAK
Pin Number
Function
POWER
MAX WATTS 85
MAX VA 150
FREQUENCY
48.440 Hz
1
TIKTION , INC., BEAVENTOR , REGOR , V.S.A
2
3
4
EXT CLK input
Pen Lift N.C.
X signal output
SHIELD GND
Y signal output
+4.2 V output
Pen Lift N.O.
Pen Lift RELAY COMM
5
40
38
6
7
5301-23
8
9
SIG GND
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Figure 3-6 . Rear Panel.
3-13