Description:
The RS 485/X.27 is defined as follows:
If you create a multipoint connection, you have up to 31 physical bus loads to which your transmitter has to supply a signal (maximum 32 physical nodes in one bus segment). You must pay attention to the send/receive specifications. At maximum load (54 ohms) the sender must provide an error voltage of 1.5V <= U <= 5V at the output points.
german
