Solution
Although adding the cable introduces additional parasitic capacitance and insulation resistance, the impact is expected to be minimal. The cable's guarded insulation resistance specification of 1 × 10¹² Ω remains sufficient for high-precision measurements, including sub-nA applications.
From a noise perspective, adding cables can be more susceptible to electromagnetic interference; however, the cable shielding and proper chassis grounding significantly reduce this effect.
Additionally, the PXIe-4163 remote sense feature compensates for voltage drops caused by cable resistance, maintaining force-voltage accuracy provided the lead drop remains within the specified limit of 1 V per lead.
Based on the cable design and module specifications, using a 2 m SHDB62M-DB62M-LL cable is not expected to have a significant impact on system performance. Any effect on leakage current, noise, or measurement accuracy should be negligible in most applications.