MS721

MAIN FEATURES

FEATURE

• Meter-Bus Transceiver (for Slave) Meets Standard EN1434-3

• Receiver Logic With Dynamic Level Recognition

• Adjustable Constant-Current Sink via Resistor • Polarity Independent • Power-Fail Function

• Module Supply Voltage Switch

• 3.3-V Constant Voltage Source

• Remote Powering

• Up to 9600 Baud in Half Duplex for UART

Protocol 

• Slave Power Support 

– Supply From Meter-Bus via Output VDD

– Supply From Meter-Bus via Output VDD or From Backup Battery 

– Supply From Battery 

– Meter-Bus Active for Data Transmission Only