Designed for use as a wall-mounted explosion-proof terminal device in loudspeaking communication systems Number of direct call buttons 4. Power supply voltage nominal 24V; Current consumption maximum 1.5A; Reproducible frequency range, kHz 0.1 - 8; Output power of the built-in amplifier 25W; Operating temperature range from -55 to +55 C; Degree of protection - IP65. Equipped with two communication interfaces: Ethernet, DSL
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