VIPA SSM-BG41 - Fig. 3-18: Four-Wire Connection with a RS422;RS485 Module

Manual BG41/BG42/BG43 Interface modules
Rev. 99/49 3-19
3.2.4.6 Four-wire bus connection
The four-wire connection should be selected, if several external pieces of equipment are to be
connected to the bus.
Fig. 3-18: Four-wire connection with a RS422/RS485 module
The number of slave connections, depends on the type of interface:
15 slaves can be connected with RS422 or
31 slaves with RS485