Parallel Poll Duration

This characteristic sets the length of time the NI-488.2 software waits when conducting a parallel poll. For a normal bus configuration in which the Controller and devices are on the same bus, use the default setting of 2 µs. If you are using a GPIB bus extender in transparent parallel poll mode, increase the poll duration to 10 µs or more so the bus extender can operate transparently to your applications.