Model 2701 User’s Manual Close/Open Switching Module Channels 2-5
Connections
WARNING Connection information for switching modules is intended for qualified
service personnel. Do not attempt to connect DUT or external circuitry
to a switching module unless qualified to do so.
WARNING To prevent electric shock that could result in serious injury or death,
adhere to the following safety precautions:
• Before making or breaking connections to the switching module,
make sure the Model 2701 is turned off and power is removed
from all external circuitry.
• Do not connect signals that will exceed the maximum
specifications of switching modules. Each module is provided with
its own unique specifications.
WARNING If both the front panel terminals and the switching module terminals are
connected at the same time, the test lead insulation must be rated to the
highest voltage that is connected. For example, if 1000V is connected to
the front panel input, the test lead insulation for the switching module
must also be rated for 1000V.
WARNING Dangerous arcs of an explosive nature in a high energy circuit can cause
severe personal injury or death. If the multimeter is connected to a high
energy circuit when set to a current range, low resistance range, or any
other low impedance range, the circuit is virtually shorted. Dangerous
arcing can result even when the multimeter is set to a voltage range if the
minimum voltage spacing is reduced in the external connections. For
details to safely make high energy measurements, see Section 3, “High
energy circuit safety precautions.”
As described in the International Electrotechnical Commission (IEC)
Standard IEC 664, the Model 2701 measurement terminals are
measurement Category I and must not be connected to mains.
For the Model 7700, detailed connection and wiring information is provided in
Appendix B of this manual (Model 7700 Connection Guide). Connection and wiring
information for other modules are provided with the individual switch cards.
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