Telephone Fiber Extender (1-fiber bi-directional) - TC1903

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TC1903
Fiber Optic Telephone Extender (1-Fiber Bi-Directional)

More compact than the TC1901 model (1.4" X 7.1" X 6.5"), the TC1903 "Quick-Talk" Fiber Telephone Extender extends dial-up phone service to remote network sites. It is compatible with most PBXs or Key Systems and provides 2-wire FXS on the telephone side with ring down capability and FXO on the PBX side.

Ideal for mounting or rack situations requiring compact form factors, the TC1903 is typically used to extend analog telephone service in campus networks, power plants, substations where ground loops, noise, EMI or security issues may exist. Other examples include extending secured telephone links or setting up "hot links."

The TC1903 provides Toll Quality voice and often improves voice quality when compared to twisted pair circuits. It supports asynchronous baud rates from 19.2K and bandwidths from 300Hz to 3.4Khz.

Features
  • Extend Telephone Link with Fiber or Async RS-232
  • 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 or 115/230VAC with Power Adapter
  • Built-In Power Redundancy
  • High Temp or Extreme Temp Options
  • Rackmount or Standalone
  • Tested and Compatible with:
    code blue ramtel talk a phone

Packaging Options


Applications

The TC1903 is often used to extend telephone service in campus networks, power plants, substations, etc or use an existing service data channel to set up a telephone 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.

TC1903 - Telephone Fiber Extender
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Specifications

Audio Bandwidth
  1. Bandwidth300Hz to 3.4Khz
Optical
  1. TransmitterLED/ELED
  2. ReceiverPIN Diode
  3. Wavelength850nm/1300nm Multimode, 1300nm/1550nm Single Mode
  4. Fiber Optic ConnectorsSC
  5. Loss Budget* - 850/1300/1550nm
  6. Multimode @62.5/125µm15dB
  7. Single Mode @9/125µm20dB
Electrical
  1. Phone ConnectorRJ11 Female
  2. Ring Voltage80Vrms at 20Hz (Depending on the ringing load)
  3. FXO Input Impedance600 Ohm
  4. FXS Output Impedance600 Ohm
Visual Indicators
  1. Tx and Rx volume, Local off-hook, Remote off-hook, FXOYes
  2. FXS, Ring, Optic Rx, Electric Rx, VccA, VccB, PWR A, PWR BYes
Alarm / Ring
  1. Dry ContactNormal OPEN
Power
  1. Standard12VDC @500mA
  2. Optional24VDC or 115/230VAC with Power Cube
Temperature
  1. Operating-10°C to 50°C
  2. Optional-20°C to 70°C
  3. Storage-40°C to 90°C
  4. Humidity95% non-condensing
Physical (Standalone Unit)
  1. Height(3.53 cm) 1.39"
  2. Width(18.13 cm) 7.14"
  3. Depth(16.59 cm) 6.53"
  4. Weight(544 gm) 1.2 lbs
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