| Specifications | 
     | 
     | 
    Important Features | 
  
  
    | Audio Bandwidth (minimum) | 
     300 to 3500 Hz (+0,-3dB)  | 
      | 
     ยท 
    Complete Intercom -  
    No other components  
    required | 
  
  
    | Audio Input / 
    Output  | 
     Integral speaker/microphone | 
     | 
     ยท
    Push to Talk or Hands  
    Free Operation | 
  
  
    | Auxiliary 
    Input / Output | 
     Jack for optional handset | 
     | 
     ยท
    Point-to-point or party line 
     operation | 
  
  
    | Audio Output | 
     1 watt maximum | 
     | 
     ยท Multimode & 
    Single mode  
    versions | 
  
  
    | Controls | 
     Call, Push-To-Talk, Volume, 
     Hands-Free Select | 
     | 
     ยท 
    Distances of up to 40 miles  
     (60 Km) possible | 
  
  
    | Operating Wavelength | 
     850, 1310 or 1550nm  | 
      | 
      | 
  
  
    | Optical Output Power | 
     -16dBm (multimode),  
     -16dBm (single-mode) | 
      | 
      | 
  
  
    | Optical Loss Budget | 
     0-13 dB (multimode),  
     0-13 dB (single-mode) | 
      | 
      | 
  
  
    | Operating Connectors | 
     ST (multimode) 
 FCPC (single-mode) | 
     | 
           | 
  
  
    | Power Requirements | 
     11-24 VAC/DC @150mA | 
     | 
     | 
  
  
    | Humidity | 
    <95% non-condensing | 
     | 
     | 
  
  
    | MTBF (per MIL HBK 217D) | 
    >120,000 hours | 
     | 
     | 
  
  
    | Operating Temperature | 
    -35 to +75 degrees C | 
     | 
     | 
  
  
    | Physical Size (mm) | 
     7.0" x 5.0" x 1.5" 
     (178mm x 127mm x 39mm) | 
      | 
      |