Maximum distance for RS485 at 9600 baud rate

Question

As per RS485 driver chip, I can have 32 nodes in a single RS485 network, but what can be the maximum distance of single network operating at baud rate of 9600 ?

Answer 1

Its 4000 feet or 1220 meters.

src: http://www.paroscientific.com/manuals/G8776.pdf