Optical Talk Set – OTS4


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  • Energy-saving design, long-time operation
  • Can be used as a steady laser source
  • Articulate voice, low background noise
  • Judgematical calling function
  • 32 steps volume control
  • Low-power alarm
  • Two pairs of OTS-4 supports tri-party communication via clip-on coupler device
  • Maximum dynamic range 50dB for long distance communication
  • Hands-free (HF) speaker provides users with convenient operation


Wave Length 1550nm
Telecommunication System Full duplex
Full duplex SM & MM (the dynamic range will shrink 20dB for MM fibre)
Spectral Width <15nm
Adaptor Type FC/PC
Dynamic Range 50dB
Output Power -3dBm
Hands-free speaker Yes
Tri-party Communication Yes
Operating Temperature -10 to +50°C
Storage Temperature -20 to +70°C
Relative Humidity <90%, non-condensing
Power Supply Ni-MH Battery (replaceable)and AC/DC adaptor
Battery Life 40hrs (standard)
Dimension (mm) 220L x 110W x 45H
New Weight 550g (including battery)