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Fiber Optic Telephone/Analog Extender ("Quick-Talk")

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The TC1901 "Quick-Talk" Fiber Optic Phone/Analog Extender can turn a fiber optic network into a voice network simply by plugging in a telephone set.

Quick-Talk is typically used to extend phone service or 2/4-Wire analog 600 Ohm links to remote sites over a fiber optic circuit up to 80 Km away.

  • Extend Telephone or 2/4-Wire Analog 600Ω Link with Fiber
  • PBX and Key System Compatible
  • Voice Bandwidth from 300Hz to 3.4Khz for Toll Quality Sound
  • Built-In Dry Contact Relay for External Alarm and Ringer Connection
  • 12VDC Power Supply, Optional 24VDC, -48VDC, 125VDC, or 115/230VAC with Power Adapter
  • Built-In Power Redundancy
  • -40°C - +80°C Extreme Temperature Option Available
  • Rackmount or Standalone
  • Operates Over Dual Fiber
  • Tested and Compatible with:
    code blue ramtel talk a phone

The TC1900 is most often used to extend telephone service in campus networks, power plants and substations or as an existing service data channel to set up a telephone link.


The TC1901 is often used to extend telephone/analog service in campus networks, power plants, substations, etc or use an existing service data channel to set up a telephone/analog link. It is also used to set up “hot” telephone service via fiber optic networks. Other applications include taking advantage of the inherent benefits of fiber optics to reduce noise/EMI or maximize security/isolation.

TC1901 - Fiber Telephone Extender
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Audio Bandwidth
  1. Frequency300Hz to 3.4Khz
Signal Level (2/4-Wire 600Ω)
  1. Input Range-1.5 to -40dBm
  2. SNR32 to 36dB
  1. TransmitterLED/ELED
  2. ReceiverPIN Diode
  3. Wavelength850nm/1300nm Multimode, 1300nm/1550nm Single Mode
  4. Fiber Optic ConnectorsST, Optional FC**
  5. Loss Budget* - 850/1300/1550nm
  6. Multimode @62.5/125µm15dB
  7. Single Mode @9/125µm20dB
  1. Phone ConnectorRJ11 Female
  2. Ring Voltage55Vrms at 25Hz (Depending on the ringing load)
  3. FXO Impedance600Ω
  4. FXS Impedance600Ω
Visual Indicators
  1. Tx and Rx volume, Local off-hook, Remote off-hook,Yes
  2. FXO, FXS, Ring, Optic Rx, Electric Rx, VccA, VccB, PWR A, PWR BYes
  1. Dry ContactNormal OPEN
  1. Standard12VDC @ 500mA
  2. Optional24VDC, -48VDC, 125VDC, or 115/230VAC with power cube
  1. Operating-10°C to 50°C
  2. Hi-Temp (optional)-20°C to 70°C
  3. Extreme (optional)-40°C to 80°C
  4. Storage-40°C to 90°C
  5. Humidity95% non-condensing
Physical (Standalone Unit)
  1. Height(3.53 cm) 1.39"
  2. Width(18.14 cm) 7.2"
  3. Depth(24.89 cm) 9.8"
  4. Weight(907 gm) 2.0 lbs
* Contact factory for higher requirements
** FC is not available @850nm Multimode


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