I am designing a RS-485 network and would like to know whether the configuration below would work. The transceiver I am using is the Maxim MAX485, with the master ad slaves hardwired to always transmit/receive respectively. My target bitrate is 1 MHz.
The master device would be living on a distribution PCB, the "backbone", with connectors for distributing the differential lines to each stub. The slave PCBs would be daisy-chained along a number of stubs (around 10 of them, which will be kept to a sensible length of about 20cm).
Note that for the sake of using input and output connectors as opposite to screw terminals, I would be routing the differential lines across each of the slave boards.
I am aware that the ideal topology for RS-485 would just be one long daisy chain, but I am trying to combine power injection and data transmission into one shielded twisted pair cable assembly and the topology above is what would work best mechanically for my application.
Do any more best practice design considerations come to mind when configuring such a network with bespoke circuit boards?