KTI Networks KSC-240 manual RS-485 Multi-drop Network

3.3 RS-485 Multi-drop Network

This topology is similar to RS-422 multi-drop. However, up to 32 receiv- ers are permitted under RS-485. This may be used for point-to-multipoint communications.

The converter can convert an RS-232 device into a Master node in this multi-drop network as illustrated below:

The configuration for MASTER node is:

SW1-4	TXE	Enable Driver always
SW1-6	RXC	Enable Receiver RTS/ADC Control
SW1-5	RTS-D	Disable RTS control
SW2-1	SDD	Disable ADC control

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