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W-PA SIP Public Announcer is used to broadcast emergency messages and communication in large environments such as shopping malls, supermarkets, airports, hospitals. The device has 10 Watt audio output and it still allows you to connect external loudspeakers and microphones. It can also act as a relay for activating door release switches or door locks via 1 embedded short-in detect port and 1 short-out control port. See /wiki/spaces/DOC/pages/30281148 for detailed technical characteristics.
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