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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