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© Carlo Gavazzi A/S
Dupline
®
Master Module (DMM)
Fig. 22: Dupline
®
Master Module (DMM) for parking systems - GP34960005700
The purpose of the master Module is to generate the 1 kHz Dupline
®
carrier signal making it possible
for all the devices on the bus to communicate with each other� Furthermore it synchronizes the power
supply for the sensors with the Dupline
®
bus signal in order to achieve a 3-wire bus with communica-
tion and power� Finally it acts as a RS485 Modbus interface in order to deliver the sensors status data
to the RS485 and TCP/IP network collecting the data for the Parking Software�
Test and Configuration Unit
Fig. 23 : Parking guidance test and configuration unit - GP 7380 0080 709
Fig. 21 : Display