User's Manual Hub/Switch NPort 1220, NPort 1240

Introduction
DIP Switch No. DIP Switch Setting
Interface & Termination
Resistor Setting
On 4-wire RS-422/485
1
Off 2-wire RS-485
On Termination Resistor on
2
Off Termination Resistor off
NPort 1220/1240 USB-to-Serial Hub User’s Manual
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