The 7520R is designed for PLC networking. During normal conditions, the PLC system will have a stable DC-24V power source. The

user may use this power source to

7520R(configuration A). When using

7520, the user must use

another power source,

PWR-24

(configuration B).

 

 

￿RS-485

￿7520R

￿7520

￿PWR-24

The isolation feature is very important in real world applications, therefore the user should pay attention when selecting the correct module. If the wrong module is selected, the isolation will be removed but the module will still function OK. This may cause unexpected damaged by high-energy transients on a RS-485 network.

7000 Bus Converter User Manual (version 1.2,Feb/2003, 7PH-006-10) ---------------

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Image 26
ICP DAS USA 7000 user manual Configuration B