How to communication Arduino <-> PC using Mambashield and PLC modem

i want to communication Arduino to Rasberry Pi(Home Server) using Power Line Communication

So i use (Arduino + Mamba Shield) and (Rasberry Pi + PLC modem (NC-PLCD))

PLC modem has

  1. RS-232C
  2. TTL

so i use TTL for connect PLC modem to Rasberry

i don't know how to communication arduino to Rasberry Pi using power line communication

im trying to communication using JAVA RXTX lib but it doesn't work

how to communicate with (Arduino + Mamba Shield) and (Rasberry Pi + PLC modem (NC-PLCD))?

You may get more help if you give more details about why it "doesnt work". Maybe you can post details of the wiring at each end? Are there any indicator LED's on the power line modems and if so do they flash when you attempt to send information?

rw950431:
You may get more help if you give more details about why it “doesnt work”. Maybe you can post details of the wiring at each end? Are there any indicator LED’s on the power line modems and if so do they flash when you attempt to send information?

First problem is problem in communication between ‘Mamba Shield’ and ‘NC-EPLC(PLC modem)’

no idea about how to communicate using PLC line