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B&B Electronics MESR9xx Manual De Usuario

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3. Setup and Connections 
 
 
 
 
          Vlinx MESR9xx Modbus Gateway 
 
Page 12 
                                                                                                                                           
Manual Documentation Number MESR9xx-4508m 
www.bb-elec.com/
 
www.bb-europe.com/
 
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This section describes how to setup and connect MESR9xx Modbus Gateways.  
Note: In this section devices to be connected to the Modbus gateway’s serial connection are simply 
referred to as the “Modbus network”. 
 
Connecting the Power Supply 
Connect a DC power supply to the power terminals on the top of the Modbus gateway. 
Polarity of the wires is indicated on the label on the side of the Modbus gateway. 
Acceptable voltages are between 10 VDC and 48 VDC. The power supply must be 
capable of supplying 4 Watts for MESR90x units or 6 Watts fro MESR92x units.  
 
Figure 12. 
MESR Power Connection 
 
Connecting MESR9xx Modbus Gateways to Modbus networks 
MESR9xx Modbus Gateways can be configured to connect to Modbus networks using 
RS-232, RS-422, RS-485 2-wire and RS-485 4-wire.