3.2 Multidrop
Multidrop configuration means that more than two devices (Max. 10 for RS-422; Max. 32 for RS-485) can be linked all together to communicate one another through many A50 (or A51) devices. In this configuration, one of the A50 (or A51) will be connected to a master device and the rest of A50 (or A51) devices will be connected to any other slave devices.
4-wire Full Duplex
Master DTE/ 
DCE
A50/A51
TA RS-232 RS-485 TB RB RA GND
A50/A51
RA
RB RS-485 RS-232
TB
TA
GND
A50/A51
RA
RB RS-485 RS-232
TB
TA
GND
Slave 
DTE/
DCE
Slave
DTE/
DCE
