Agilent Technologies 4155C User Manual page 32

CAUTION
WARNING
CAUTION
Introducing the 4155C/4156C
Rear View of the 4155C/4156C
• To R-Box terminal
"To R-Box" terminal is a 10-pin connector. To use R-Box, connect this terminal
to control terminal of Agilent 16441A R-Box.
• VSU terminals
VSU output terminals are BNC connectors. To use VSUs, connect these
terminals to VSU terminals of Agilent 16442A/B or connector plate.
• VMU terminals
VMU input terminals are BNC connectors. To use VMUs, connect these
terminals to VMU terminals of the 16442A/B or connector plate.
• SMU terminals
The 4155C has four triaxial connectors. The 4156C has eight triaxial connectors,
and you can use Kelvin connections. When you use the 16442A/B test fixture
and Kelvin connections, up to 3 SMUs can be connected to the 16442A/B test
fixture.
• Circuit Common (
Normally, connect the terminals together by using the shorting bar (Agilent part
number 5000-4206). For floating measurement, remove the shorting bar.
For floating measurement, do not apply voltage more than ± 42 V to the Circuit
Common terminal. Failure to heed this caution may result in damage to the 4155C/
4156C.
If the Circuit Common terminal is not connected to the frame ground terminal
(for floating measurement), a potential shock hazard may present. Do not
touch any of measurement circuit at any time while a floating measurement is
in progress.
• To Expander Box Interface
When you use Agilent 41501A/B, you insert the board for the 41501A/B into
this interface.
• Zero Check terminal
Ground reference point of the 4155C/4156C.
The Zero Check terminal can be used for the service purpose only. For the normal
operation, leave this terminal open and do not connect anything to this terminal.
Connecting anything can damage the 4155C/4156C.
1-12
) and Frame ground (
Agilent 4155C/4156C User's Guide Vol.1, Edition 11
) terminals