KTI Networks KSC-240 Installation Manual page 24

SW1-4
TXC RS-485/422 driver enable control by RTS or ADC
TXE RS-485/422 driver is forced to enable
[TXC] setting enables RS-485/422 driver to be controlled by RTS method
or ADC method. RTS method is described later. Refer to SW2 settings for
more description about ADC method.
[TXE] setting forces RS-485/422 driver to be enabled always. This setting
is applied when Master function is required in an RS-485/RS-422 multi-
drop bus.
-24-