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Rosemount Tank Radar REX
Chapter 7 Bus Modems
7-4
Installation Manual
308014EN, Edition 4
May 2013
7.1.4 RS 232 Communication
The serial port on the FBM2180 fits to a standard M 9P Dsub connector.
Connect the modem to the COM port on the PC with a standard RS232
DTE-DCE cable (“straight” cable).
Figure 7-5. RS232 connection
7.1.5 USB Communication
For the USB port use cable type A>B. Do not use external power supply
when using the USB port. The USB interface itself supports power to the
FBM2180 modem.
Figure 7-6. USB connection
RS 232 port
RS 232 connector
FBM2180_Back / FBM2180_RS232_Top
USB port
USB connector
FBM2180_Back / FBM2180_USB_Top