PRODUCT DETAILS

EJ-502IR Infrared Microphone System

The infrared receiver EJ-502IR is featured in 2 infrared microphone channels and allowing to be used at simultaneously or unlimited microphone to be operated at school classrooms without interferences or unsecured use in adjacent rooms. No worry for channel selection, unstable frequency interferences or installations!

  • Dual-channel Infrared Wireless Receiver 
  • Built-in IR-502 receiver module 
  • Two microphone channels 
  • LED indicators for audio frequency and channel
  • Single volume control with increased numeric adjustment 
  • 1/4 U receiver rack design. 
  • Interference-free, interception-free
  • Allocation for multiple rooms installation purpose. 
  • Preventing complicated frequency. 
  • Individual volume control for microphone.
  • Volume control with increased numeric adjustment. 
  • LED indicators for easy identification. 
  • Mic / Line output switch. 
  • Two sensor audio inputs (F type). 


Information product:

Receiver module

IR-502

Infrared ray wavelength

850 nm

Carrier frequency

2.3 MHz (Ch. A); 2.8 MHz (Ch. B)

Receiving system

TRF (Tuned Radio Frequency)

Maximum deviation

50 kHz, with level limiting

Tone squelch frequency

32.768 kHz

Dynamic range

110 dB

T.H.D

< 1 %

Frequency response

70 Hz ~ 10 kHz

Ambient temperature

- 10 ℃ ~ + 50 ℃

Infrared sensor inputs

2 (F type connector)

Reception range

Approx. 20m (at Hi) / 15m (at Low); line-of sight

Dimensions(D x W x H)

200 X 115 X 45 (mm)

Weight

750 g

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Partner

  • Mitel
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  • Teledex
  • NJC
  • Ihomes
  • Homtime
  • Dnet
  • Cotell
  • Alcatel
  • AEI
  • NEC
  • Cetis
  • Bittel
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