125. SERVICEFrontal Plate DescriptionFig. 4 Frontal view of the P43 transducerMessages after Switching the Supply onAfter switching the supply on, the state diode should light up for a momentin red, and next should light up in green. The recording confirmation inregisters is signaled by a short extinction of the state diode.The incorrect work is signaled by the state diode in the way describedin the chapter 7. The data reception through the RS-485 interface issignaled by a pulsing of the Rx diode. The data transmission throughUSB link forconfigurationTransducerstate diodeDiode of data recep-tion through RS-485Diode of datatransmission throughRS-485Diodes of AL1 andAL2 alarms