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Model 4145A
SECTION III
@
FILTER
Switch:
This switch
determines
the
measurement
integration
time,
to reduce
the effects
of
line-frequency
noise.
Set this switch
to the
frequency
of the ac power source.
@
System Cable Connector
:
@
LINE
Input Receptacle
:
Twenty-four
pin
connector
for
inter-
connection
between
the
16058A
Test
Fixture
and the 4145A.
Vsl, Vs2, Vml, Vm2,
and
the
fixture-lid-open
detector
are
connected
to
this
connector.
When
the
16058A is not used, this connector
should be
terminated
with
the
furnished
shorting-termination
if voltages
exceeding
+42V are to be output.
AC
power
cable
is
connected
to
this
receptacle.
Refer to paragraph
2-5.
0
10
HP-IB
Control
Switch :
This switch
sets the 4145A's HP-IB address
(0 - 30), data output
format
(COMMA
or
CR/LF),
and interface
capability
(EOI ON
or
OFF).
Specific
information
on
this
switch is given in paragraph
3-97.
WARNING
WHEN
THE
SHORTING-
TERMINATION
IS CONNECTED
TO
THE
SYSTEM
CABLE
CONNECTOR,
THE
4145 A'S
PROTECTIVE
CIRCUIT
IS
DISABLED.
VOLTAGES
AT THE
SMU
AND
Vs OUTPUTS
CAN
REACH
+lOOV
AND
-+2ov,
RESPECTIVELY.
DO
NOT
TOUCH
THE POINT OR POINTS
AT
WHICH
THE%.* SMU'S
OR
VOLTAGE
SOURCES
ARE
CONNECTED.
3
'7
LINE
FUSE Holder :
The 4145A's power-line
fuse is installed
in this holder.
lOOV/12OV operation
:
2.5AT, 250V (HP P/N : 2110-0015)
2OOV/24OV operation
:
1.25AT, 250V (HP P/N : 2110-0305)
@
LINE
VOLTAGE
SELECTOR
Switches
These switches
select
the
appropriate
ac
operating
voltage.
Selectable
voltages
are
lOOV/12OV+lO%
and 22OVklO%
/ 24OV+5%
-10% (48 - 66Hz).
Refer to paragraph
2-5.
0
11
HP-IB Connector
:
Twenty-four
pin
connector;
connects
the
4145A to the HP-IB for remote
operations.
Also used to connect a printer/plotter.
@
External
CRT Output
Connectors
:
Three
BNC
(f) connectors
for connection
to an external
X-Y-Z
display.
Refer
to
paragraph
3-l 2 1.
Figure 3-3. Rear Panel Features (Sheet 2 of 2).
3-9
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