KD-4ZQ Talkback Main Unit Function
Main unit and extension call and talkback each other.
Max 50 extensions can be connected.
The system can be permit max, three main unit and/or extensions to communicate simultaneously.
Technical Parameter
Power failure alarm sound pressure level of main unit: 75dB~85dB
Output audio power: ≤5W
Nonlinear distortion: ≤6%
Frequency Characteristics: 200Hz~5000Hz
Call signal: 800±100Hz intermittent tone
Frequency response relative to 800Hz is ± 3dB
Capacity: 50 lines
Operating Voltage: DC 24V
Color: Black (RAL 9005)
IP Class: IP20
Weight: 2.1KG
Power Loss: 25W
KD-4ZQ Mounting Size
