Aviosys 9211 - Manual (Page 11)

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For different request of normal state of electric equipment, 9211 offers four sets of voltage signal IN1-
IN4 and four sets of shortcut circuit signals IN5-IN8.
9211 Pro provide 4set Source mode - Voltage Input – Out 1 ~ Out 4
ON : 4V~24V
OFF : 0V ~ 3V
4 set Sink mode - Resistance input – Out 5 ~ Out 8.
ON : 200 ohm~ 0 ohm
OFF : 500 ohm ~ ∞
1. The polarity: Right - Positive & Left – Negative .
NOTE : Because of the polarity protective function, it won’t damage the product if user reverse the
polarity in installation. But it will cause the product cannot work properly
2. Source mode ( Voltage signal ) -- IN1 & IN4: can be connected to voltage signal detectors such as
smoke detector, light detector and gas detector.