7. SPECIFICATIONS
JCY-1900
1950
DR Service Manual
87
DOC No. 7ZPNA4409
7.5. NVT-181 Microphone Unit
Performance
a) Mounting Ceiling mount type
b) Device Electoret condenser microphone
c) Directivity Hemisphere indirectivity
d) Range of Receive Radius of 3.5m
e) Power supply Supply from the RCU
f) Microphone test Built-in speaker for self-diagnosis test
g) Compass safety distance
1) Standard 0.1m
2) Steering 0.1m
Environmental condition
a) Operating temperature -15 °C to +55 °C (IEC 60945 protected type)
b) Temperature and humidity +40 °C, 93% (non condensing)
c) Vibration 2Hz to 13.2Hz ±1.0mm
13.2Hz to 100Hz 0.7G
d) Protection class IP22
General specification
a) Size 110(w) x 51(d) x 110(h) mm
b) Mass 0.2kg
c) Color N2.5
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