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Sensaphone SCADA 3000 Users manual User Manual

Page 270

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SCADA 3000 User’s Manual

Figure 1: Module Mounting Dimensions

Power Supply and Grounding

The Analog Output Module operates on 10–15VDC. Typically the module is powered from

the AUX PWR terminals on the SCADA 3000 main unit. This is preferred because the AUX

PWR from the main unit is battery-backed in the event of a power failure, when a battery

is connected to the main unit. Alternately, you may connect the module to any 10–15VDC

power source.

Figure 2: Module powered from main unit

It is extremely important that the EG pin be connected to a good earth ground. This will pre-

vent communication errors due to differences in ground potential between modules in addition

to possible damage due to voltage transients and surges.