Appendix D -- I/O Connections for the PCI4 -- Control Signal Input
6-12
Control Signal Input
The Control Signal Input allows you to inject a signal into the PCI4's potential or current control circuits. One
use for this input is modulation of the applied voltage or current.
This input is the upper-middle SMC connector on the Controller Card mini-panel. See Figure D-1 for the
identity of all the SMC connectors on this mini-panel.
Note that the shell of this SMC connector is connected to the PCI4's floating ground. Connecting an earth
ground referenced signal source to this input will cause problems if you are using the PCI4 with a cell that has
an earth grounded electrode.
Figure D-1
SMC Connectors on the PCI4 Controller Card Mini-panel
Rear View of PCI4 Cards in a Computer
Miscellaneous
I/O Connector
Aux A/D
Input
Control
Signal Input
I Channel
Output
E Channel
Output
Cell
Connector
Cell
Indicator
