Quote Originally Posted by Toufic View Post
10x for the reply man bt i have already downloaded the user manual and the datasheet from the aurel site and they tell u how to relay each pin and i have done this but still the output on pin 12 is 2.45 and the say in the datasheet that it is supposed to be 0 or 5V
so that is my prob..
thank u again
Are you reading the manual correctly? The manual indicates there will be random noise whenever the RX is enabled. You must use the CD pin to determine whether it is signal or noise. The manual also indicates that you need to use manchester coding as the dataslicer is designed for a 50% duty cycle (and will not function if the duty cycle deviates too far). This means that you cannot set the transmitter High or Low (steady-state) and expect the RX pin to reflect that. If you send a series of pulses (50% duty cycle), you should see the same at the receiver. The manual specifically notes that you cannot use the module for RS232 data streams without using some scheme to achieve DC balance (e.g. manchester coding). All in all, this is not a module for the inexperienced.