DynAmp RCEM, Инструкция по установке, эксплуатации и обслуживанию

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Installation, Operation and Service Manual RCEM
© 2012 DynAmp, LLC Page 10
43756 G
Figure 5.1
Analog Card Rack
5.4 BACKPLANE
The digital interface circuits to/from the Personal Daq/56 are located on the Data
Acquisition Unit backplane. The backplane also contains the reset sync cards connectors,
the integrator card connectors, the signal input connectors from the current sensors, and
the power circuits.
The backplane also contains the ac zero-crossing detector circuit. This circuit supplies the
ac zero-crossing timing pulse to the reset sync pulse generator and the test signal
generator circuits located on the Reset Sync Cards.
5.5 POWER CIRCUITS
The power circuits in the Data Acquisition Unit consist of the ac power input circuit, the
regulated quad output power supply, the +12V power supply, the + 5V power supply, and
the dc power input circuits.