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Two Possible Logical Ampli fi er Con fi gurations for a PZ5-64-2 (with two digital inputs)
Logical ampli fi er con fi gurations can be de fi ned using the front panel interface (see PZ5
Touchscreen ), in Synapse, or in RPvdsEx using the PZ5_Control macro. The PZ5-0-32 model
can have a maximum of two logical ampli fi ers con fi gured. All other PZ5s can have a maximum
of four logical ampli fi ers.
Analog Recording Reference Modes
The PZ5 supports four referencing modes for each analog input logical ampli fi er: Local,
Shared, None and Differential. See Pinout Diagrams .
Reference
Mode Description
Local Each bank of channels in a logical ampli fi er uses its own reference input (pin 5) as the reference for
that bank
Shared The reference (pin 5) of the fi rst bank of the logical ampli fi er acts as a reference for all banks in the
logical ampli fi er
None The references for all banks of a logical ampli fi er are tied to the Ground (pins 13, 15, and 16).
Differential The inputs in each bank of the logical ampli fi er are paired; odd channels serve as recording (+)
channels and each even channel is used as an individual reference (-) channel for the preceding odd
channel. No connections should be made to pin 5.
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