KTI Networks KSC-240 manual Or use ADC control optional

The master node may drive its bus while any of the slave nodes are driving the lower pair, making this 4-wire network a full-duplex communi- cation channel. All communication occurs from master to slave or slave to master, so any peer to peer communications must be routed through the master node.

To convert an RS-232 device into a Master node in RS-485 4-wire net- work, the configuration is:

SW1-2&1	4W	Select 4-wire topology
SW1-4	TXE	Enable Driver always
SW1-6	RXC	Enable RTS/ADC Control for Receiver
SW1-5	RTS-E	Use RTS control (optional)
SW2-1	SDE	Or use ADC control (optional)
SW2-2-8	Baud	Baud when ADC control is enabled (optional)
SW1-3	T-D	Disable internal terminator (optional)

To convert an RS-232 device into a Slave node in RS-485 4-wire network, the configuration is:

SW1-2&1	4W	Select 4-wire topology
SW1-4	TXC	Enable RTS/ADC Control for Driver
SW1-6	RXE	Enable Receiver always
SW1-5	RTS-E	Use RTS control (optional)
SW2-1	SDE	Or use ADC control (optional)
SW2-2-8	Baud	Baud when ADC control is enabled (optional)
SW1-3	T-D	Disable internal terminator (optional)

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