Which pressure input on the CEC-10E PV Extension Cable should I use with my PV catheter?

The CEC-10E PV Extension Cable (10 ft) can be used for connecting a single pressure, dual pressure and/or multi-segmented pressure volume catheter to the MPVS Ultra PV Unit. It incorporates one REDEL connector for measuring the volume signal and two Low-Profile connectors for measuring one or two pressure signals. 
If you are using a PV catheter with just one pressure sensor intended to measure ventricular pressure, you should connect it to the CEC-10E input labeled "Pressure 1." If your PV catheter has a secondary pressure sensor, or if you are measuring pressure using a separate pressure catheter, you should connect the secondary pressure sensor's connector to the input labeled "Pressure 2."