Art.4833 Speaker unit
SIGNALS
+V Power input 16÷20Vdc
Power input ground
12Vout 12Vdc. 0,3A max. output to supply accessiories
1
Speech line input toward the loudspeaker and data signal (about 12V in stand-by, about 5V with a conversation in
progress)
2 Speech line output from the microphone (about 12V in stand-by, about 3V with a conversation in progress)
V1 Balanced video signal sync.–
V2 Balanced video signal sync.+
BS Input/Output busy signal (about 12V in stand-by, about 0V with a call in progress)
SL Active low output to enable the enslavement relay for video signal exchange (active with a call in progress)
PTE Active low input to control directly the door open relay
C Door open relay common contact
Max 24Vdc, 3A when used as dry contacts relayNC Door open relay normally closed contact
NO Door open relay normally open contact
TECHNICAL SPECIFICATION
Power Supply: Supplied by the BUS line, 20Vdc
Power consumption: Stand-by: 70mA
Operating: 250mA
Working Temperature: -10 +50° C
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