Audio Bandwidth
   Analog...................300Hz to 3.4 KHz
  Intercom..................300Hz to 3.4 KHz

Channel Capacity
   Stand Alone Unit.......4 or 8 Channels
   Rack Mount Unit.......4, 8, 12, 16, 20,
   ................................or 24 Channels

Wavelength
    .........................850nm/1300nm MM
    .......................1300nm/1550nm SM
   Fiber Optic Connectors............... ST
      {trademark of AT&T}; Optional FC
   Loss Budget- 850/1300/1550nm
    15dB.........Multimode @ 62.5/125µm
    20dB..........Single Mode @ 9/125µm

Electrical
     Connector................RJ11 Female
   Max Analog Input 3V p-p
   Analog Interface 600 ohm Isolated 
   Transformer
   Intercom Interface  Capacitor Coupled

System
   Bit Error Rate ........1 in 10⁹ or better
  Audio Indicator.......................Buzzer
Visual Indicators....Power A, Power B
  Alarm, Vcc, Pickup Handset when
 Flashing, Push to Signal Remote Station
 Signaling Control............Push Button

Power
   Standard..............12VDC @ 500mA 
   Optional............24VDC, -48VDC, or 
   ...........115/230VAC with power cube

Temperature
   Operating......................-10° to 50°C
   High Temp (optional)......-20° to 70°C
   Storage.........................-40° to 90°C
   Humidity...........95% non-condensing

Physical (Stand Alone Unit)
    Height.......................(3.53 cm) 1.4"
    Width......................(18.10 cm) 7.1"
    Depth......................(24.80 cm) 9.8"
    Weight.................(831 gm) 2.4 lbs.
 Contact factory for higher requirements