EverFocus PARAGON 264x4-16 Instruction Manual page 14

RS485 socket: Interface for remote control via RS-485 keyboards and telemetry control
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Alarm In: Connect up to 16 alarm inputs, programmable NO or NC (dry contacts).
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Alarm Out: 4 x NO/NC alarm output relay.
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Audio In: 16x audio input, RCA socket for line audio signals 1 V max., 10 KOhm impedance
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