BenQ T420 User Manual page 24

24 Setting up the display
Connecting multiple displays
With the RS232C IN/OUT interfaces, you can connect multiple displays serially (daisy
chain) to a computer for management. The number of displays you can connect serially
depends on the resolution of the input signal you use.
This function requires an RS-232C port equipped computer with the display management
software installed.
RS-232C cable
RS-232C cable
RS-232C cable
Computer