05-06-2010, 04:43 AM
I'm trying to use a Parallel cable on a serial adapter for using an external modem.
a serial cable db9 -> db25,
a parallel cable db25 -> db25 through db25 -> db9 converter
However, I am unable to send AT commands to the modem using the adapter & perfectly using the serial cable. Do I need a null modem adapter between the parallel cable & serial converter?
a serial cable db9 -> db25,
a parallel cable db25 -> db25 through db25 -> db9 converter
However, I am unable to send AT commands to the modem using the adapter & perfectly using the serial cable. Do I need a null modem adapter between the parallel cable & serial converter?