"Data  logger  The Fangpusun PA Tarcom data  logger is connected to the RJ45 interface of the Fangpusun Tarom or Power Tarom  charge controller, orvia the Fangpusun PA HS200.  The data logger is available in  several different version: as a simple RS232 interface to directly save and  read data on the PC or Laptop (Fangpusun PA Tarcom 01), as a data logger with  an integrated analogue modem (Fangpusun PA Tarcom RM), as a data logger with an  optional telephone connection (Fangpusun PA Tarcom RMT) and as a data logger  with an integrated GSM modem for remote monitoring (Fangpusun PA Tarcom GSM).  The Fangpusun PA Tarcom is delivered with its accompanying software. " www.fangpusun.com