It also can convert an RS-232 device into a receiver node in this point-to- point circuit.

The configuration for a RECEIVER node is:

SW1-4

TXC

Enable RTS/ADC Control for Driver

SW1-6

RXE

Enable Receiver always

SW1-5

RTS-D

Disable RTS control

SW2-1

SDD

Disable ADC control

3.2 RS-422 Multi-drop Network

In this topology there is only one driver sending to one or more receiv- ers. One termination resistor is recommended at the extreme end of the bus to eliminate reflections. Up to 10 receivers are permitted under RS-

422.Multiple receive-only nodes may be used for point-to-multipoint communications.

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Image 34
KTI Networks KSC-240 manual RS-422 Multi-drop Network