DNM-485
Digital Noise Sensing Microphone

DNM-485

The DNM-485 is a Digital Noise Sensing Microphone used to expand more number node of Sensing Microphone of products like IDA8, LAP, etc
 
The system is designed to meet EN5416 and BS5839/8 regulations

 

MAIN PROPERTIES
  • Ethernet interface including POE (Power On Ethernet)
  • Built in Electronic Condenser microphone (omnidirectional)
  • Microphone Input (1 kHz): -40 dBu
  • Temperature range: -40° to +80° C

Connectors

Ethernet port: CAT -5 Cable
RS485 port: 5.08 mm EURO Block (4Pin)
Include 24 Vdc power : 18~30 Vdc
Include RS485 of Baud rate : 38400 bps @600 M
 
Microphone: Omnidirectional
Sensitivity adjustment range : (60 ~ 120 dBA),±5 dBA
THD: <0.2%
EIN: <-80 dB
 
Power
 
Power Supply 24 VDC power supply (if no
POE available)
POE input Conform IEEE 802.3af
EURO Block input 18~30 Vdc
 
Electrical Characteristic
Sensitivity:
Equivalent: -80 dBu 50~16 kHz@600 Ω
THD+N @ dBu: 0.2 % 50~16 kHz
Frequency Response** -1 0 +1 dBu 50~16 kHz@0, dBu, sample rate= 48 k
Sampling rate: 48 KHz Only 1 selection
** The difference between 1 kHz and the frequency of maximum value
 
Mechanical Characteristic
 
Dimensions: Hexagonal cylinder : 100 mm(W) x 130 mm(H)