User's Manual Part 1

AT7400 Owner Manual Rev. 2.0 – October 2006-10-23 Section 2 - 7/9
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2.7.4. RS485 Communication bus
On the PCB CIM3297, pin 1 and pin 2, at the CON-12 perform the RS485 communication link among the MCU,
the UHF exciter driver drawer and the UHF power amplifier drawers.
2.7.5. Interface SNMP
The interface SNMP is the PCB CIM3453. The connectors CON-4 and CON-10 located at the PCB CIM 3297
links the 2 PCBs.
Fig. 2.6: - Module 4459 SNPM interface, PCB CIM3453, internal and external view.