Section 2: General operation
Model 2657A High Power System SourceMeter® Instrument Reference Manual
2-54
2657A-901-01 Rev. B/December 2012
Item Description
Qty Notes
(1)
Protective earth (safety ground) for Model
2657A
1
Keithley Instruments Model CA-568-120 is a protective earth
(safety ground) cable assembly supplied with the instrument.
(2a)
Interlock connection for Model 2657A
1
Pin 24 (INT) and Pin 22 (5 VDC) are connected to the test fixture
lid switch. Pin 19 is used to connect the digital grounds. Keithley
Instruments Model 7709-308 is a 25-pin interlock male connector
and can be used for custom connections.
(2b)
Interlock connection for Model 263xB
1
Pin 24 (INT) is connected to the test fixture lid switch. Pin 19
(GND) is used to connect the digital grounds. Keithley
Instruments Model 7709-308 is a 25-pin interlock male connector
and can be used for custom connections.
(3)
Interlocked metal safety enclosure
1
Select a safety enclosure with an interlock that has a normally-
open (NO) switch.
(4)
Protective earth (safety ground) for test
fixture
2
Redundant grounds may be required for specific test setups (for
example, setups that clamp LO).
(5)
Model HV-CA-571-3 high-voltage triaxial
female panel mount to unterminated cable
assembly
4
See schematic for connections. Make sure to follow
(on page 2-44).
(6)
Model HV-CA-554 high-voltage triaxial
cable assembly (male to male)
4
(7)
Model 2657A High Power System
SourceMeter
®
instrument
1
(8)
Model 2657A-PM-200 protection module
1
Refer to documentation provided with Model 2657A-PM-200 for
more information.
(9)
Model 7078-TRX triaxial cable assembly
2
(10)
Model 263xB
1
Model 261xB may be substituted for the Model 263xB. If using a
Model 261xB, a Model 2600-TRIAX 8-pin pheonix to triaxial
adapter must be used.
Summary of Contents for 2657A
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