Section 2: General operation
2606B System SourceMeter® Instrument Reference Manual
2-56
2606B-901-01 Rev. B / May 2018
Input/output LO and chassis ground
The SMU input/output LOs are available at the rear-panel terminal blocks. Input/output LOs are not
connected between channels and are electrically isolated from chassis ground.
Figure 28: Input/output LO and chassis ground terminals
The chassis screw is on the rear panel of the instrument and is connected to the metal chassis of the
2606B. It is in the MOD 1 section of the rear panel, as shown in the following figure, but can be used
for either module.
The chassis should never be used as a ground point for signal connections. High frequencies (more
than 1 MHz) present on the chassis of the 2606B may result in higher noise at the output. The
chassis should only be used as a safety shield. Use the chassis screw for connections to the chassis
of the 2606B.
Figure 29: 2606B chassis screw