Aposonic A-S1602R20B - Manual (Page 17)

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3.2 Optional Connections
„ Audio inputs
Connect the audio input connectors to the audio line-outs from system cameras or
other audio sources. Please make sure to associate the audio inputs with the
cameras in Camera Setup as described in Section 6.2 accordingly.
„ Audio output
Connect the audio output connector to the audio line-in from speakers.
„ Alarm inputs
Connect the alarm inputs to NC and/or NO type of alarm signals. Please make
sure to setup the alarm configurations in Alarm Setup as described in Section 6.3
accordingly.
„ Alarm outputs
Connect the alarm output 1 to NC type of alarm signal, alarm output 2 to NO type
of alarm signal.
„ Ethernet
Connect the Ethernet connector to a standard twisted-pair Ethernet cable for
remote access via LAN or internet. Please make sure to setup the related
configurations as described in Section 6.10 Network Setup .
„ USB 2.0 disk drives, DVD+RW, card reader, etc.
If the user wants to use USB2.0 peripheral device to retrieve important recorded
images and/or audio, please connect it to the USB port connectors.