EverFocus EKB500 Digital Camera User Manual


 
8
RS-485 signal distributors EDA-997A may be used for star wiring. The maximum system cable length can
also be expanded by using these distributors, physically providing a new RS-485 bus with 1200 m cable
length each at every distributor output.
In case the maximum number of 32 bus participants is exceeded, the number of connected devices can
be increased by using RS-485 distributors. Each distributor output physically provides one RS-485 bus
which enables the additional connection of 31 further devices (the distributor output represents one bus
participant itself).
The maximum system expandability depends on the RS-485 address range of the installed devices.
Attention: The RS-485 signal distributor EDA997A is unidirectional! This means that the signal only
flows from the input towards the outputs. Therefore, e.g. the interconnection of several EKB 500
keyboards is not possible with this signal distributor!