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Remote Microphone


The RM-300X is a remote microphone designed for the Integrated Voice Evacuation System. It is equipped with 13 function switches that can be used to select individual zones or zone groups a covered switch and corresponding indicators. The optional RM-210F Remote microphone extension permits switches and indications to be expanded in 10-piece units.

(*1) 0 dB = 1 V
Power Source 24 V DC (operating range: 15 - 40 V DC, supplied from the voice evacuation frame) or DC input power supply connector (when the optional AD-246 power supply unit used).
Usable DC power supply plug: 5.5 mm (0.22) outer diameter,
2.1 mm (0.08") inner diameter,
9.5 mm (0.37") long, and non-polarity type.
Current Consumption 240 mA or less
Audio Output 0 dB (*1), 600 Ω, balanced
External Microphone Input -40 dB (*1), 2.2 kΩ, unbalanced, φ3.5 mm phone jack (2P) for electret condenser microphone (phantom power supply: 3 V DC)
-20 dB (*1), 4.7 kΩ, unbalanced, φ3.5 mm phone jack (2P) (AUX Input)
Distortion 1 % or less
Frequency Response 100 Hz - 20 kHz
Signal to Noise Ratio 60 dB or more
Microphone Unidirectional electret condenser microphone with AGC (ON/OFF selectable)
Chime Built inside (PCM sound source), monitoring possible using built-in speaker
Level Controls Microphone sensitivity control, Monitor speaker volume control, Chime (adjustable using the software)
Connection Cables Main line: Shielded CPEV cable (1 pair of audio wire + 1 pair of data wire + 1 pair of monitor/control wire + 1 pair of power supply wire) or Shielded Category 5 twisted pair cable (CAT5-STP) or greater
Branch line: Shielded Category 5 twisted pair cable (CAT5-STP) or greater, RJ45 connector
Maximum Cable Distance 1200 m (3937.01 ft)
No. of Connectable Extension units Max. 7 units
Monitor Speaker Built inside
Operation Function switch, Covered switch, Broadcast switch
Indicators Power indicator, Failure indicator, Function switch indicator, Covered switch indicator, Broadcast switch indicator
Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity 35 % to 80 %RH (no condensation)
Finish ABS resin, black, semi-gloss
Dimensions 190 (W) × 76.5 (H) × 215 (D) mm (7.48" × 3.01" × 8.46")(excluding microphone)
Weight 880 g (1.94 lb)
Option Remote microphone extension: RM-210F
Wall mounting bracket: WB-RM200
Electret condenser microphone: WH-4000A, YP-M101, YP-M301 etc.
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