Other interfacesPower Input: DC 12V-3A JackVolume Control: VOL+ and VOL-, press both to announce IP addressEthernet: ETH0+ETH1, 10/100Mbps, ETH0 with PoE IEEE 802.3at enabledCall Button: Support 2 call buttons (switch button)Call Button LED: Support 2 call button LED indicatorsDigital level output: N/ADigital level input: 5V MaxDry Contact: NO/NC contacts, max…
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