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Make the Electrical Connections
The electrical connections for the Keithley 6487 consist of the IEEE-488 cables, banana jumpers, triaxial
cable, power cord, and possibly the interlock adapter cable.
1. Verify the instrument arrives with connections as shown in Figure 9.
2. After the instrument is installed in the system, connect one end of the provided IEEE-488 cable
to the corresponding port at the rear of the Keithley 6487.
3. Connect the other end of the IEEE-488 cable to any available IEEE-488 port on one of the other
instruments in the console.
4. Connect the triaxial cable (#8 for Models 8404/8407, and #7 for Model 8425), as shown in Figure
10. These cables will be bundled with the signal cables, connected to the back of the Model 776.
5. Connect the interlock cable as shown in Figure 10. The interlock adapter cable will connect in
line with this cable, if it is required for proper operation.
6. Select the provided power cord with the connector that matches the style of power distribution
strip in the console. Attach one end to the rear of the Keithley 6487, and the other end to the
power distribution strip.
7. Model 8425 only:
a. Confirm that triaxial cable #7 is connected to the triax feedthrough on the bottom of the
vacuum chamber.
b. Ensure that the triaxial sample holder is installed in the probe station, and is connected
to the signal cable (see Model 8425 user's manual, section 4.4.4 for further
information).
8. Turn on the power to the system.
9. Turn on the power to the Keithley 6487.
10. If the gate bias options does not work, connect the interlock adapter cable as described above.
Revision 1.1
Figure 9: Keithley 6487, as packaged
P/N 119-845
8
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