ADTEK AFM-8A Operation Manual page 12

AUX. Power connection
Analog output(AO) / Pulse output (PO)
Relay output (RO) / Digital input (DI)
Relay contact form: 5A/250Vac; 5A/30Vdc
DI input form: 12V/5mA
RS-485 communication port
Distance: 1200M max
Terminate resistor (at last device): 120~300Ω/0.25W (typical: 150Ω)
AUX. Power input range:
ADH: AC 85~264V / DC 100~300V
ADL: DC/AC 20~56V
Voltage output: 0~5V / 1~5V / 0~10V , ≥1000Ω
Current output: 0~20mA / 4~20mA / 0~10mA
≤530Ω
Pulse output: Open Collector(O.C.)
30Vdc / 30mA(max)
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