Voice phone data digitizer for RS232

The TC1900 can turn a RS-232 circuit or a fiber optic network into a voice network simply by plugging a telephone set into an RJ-11 connector.  It is compatible with most PBXs or Key Systems that use POTS lines.


  "Quick-Talk" (Model TC1900)       Related Products TC8000, TC8116, TC8800
  • Extend Telephone Link with  Async RS-232 or Fiber
  • Async Baud Rate From 9.6Kbps
  • 16 LEDs/4 DIP Switches for Diagnostics
  • PBX and Key System Compatible, FXO/FXS Selectable 
  • Voice Bandwidth from 300Hz to 3.4Khz for Toll Quality Sound
  • Built-In Dry Contact Relay for External Alarm and Ringer Connection
  • 12VDC, Optional 24VDC, -48VDC or 115/230VAC
    with Power Adapter
  • Built-In Power Redundancy
  • Rackmount or Standalone
  • Dimensions: Chassis Style SD10

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The TC1900 provides 2-wire FXS (foreign exchange subscriber) on the telephone side with ring down capability and FXO (foreign exchange office) on the PBX side.  When both sides are set to FXS, a "Hot Link" can be established; when one side lifts up the handset, the other side starts ringing.

Applications

The TC1900 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 Links" telephone service via existing RS-232 links on satellite, fiber optic or microwave networks.  Other applications include using the inherent benefits of fiber optics to reduce noise/EMI or maximize security/isolation.
 


Description

The TC1900 "Quick-Talk" Phone Extender can turn a  RS-232 circuit into a voice network simply by plugging a telephone set into an RJ-11 connector.  It is compatible with most PBXs or Key Systems.

Quick-Talk is typically used to extend dial-up phone service to remote sites over a fiber optic or RS-232 circuit.  For example, a user can extend a secured phone link to a remote site via an existing satellite or microwave RS-232 data connection.  With the optional fiber optic front end, Quick-Talk can extend a phone line up to 20 miles away.

Quick-Talk provides 2-wire FXS (foreign exchange subscriber) on the telephone side with ring down capability and FXO (foreign exchange office) on the PBX side.  When both sides are set to FXS, a "Hot Link" can be established; when one side lifts up the handset, the other side starts ringing.

Available in standalone (TC1900S) or rack mount (TC1900R) versions, it is compatible with all popular types and sizes of fiber optic cable. Diagnostic aids include 16 diagnostic LEDs for indicating power, ring, FXS, FXO, and audio activity. The TC1900R PC Card version fits into TCRM191 and TCRM195 rack mount card cages.

Quick-Talk is available with RS-232 or optical interfaces.  The optical interface is available in multimode (850/1300nm) or single mode (1300/1550nm) versions, with ST or FC connectors. A local dry contact relay is also provided for external alarm and ringer connection.

Power is 12VDC or 115/230VAC with an external power cube. Power options include 24VDC
or  -48VDC.  Power redundancy is standard.  Electrical connectors are RJ-11 Female for the telephone set, DB9 female for RS-232.

Specifications

Audio Bandwidth
   .................................300Hz to 3.4 Khz
Optical (Optional)

   Transmitter..........................LED/ELED 
   Receiver...............................PIN Diode 
   Wavelength
   .....................850nm/1300nm Multimode
   ................1300nm/1550nm Single Mode
   Fiber Optic Connectors
   .................................. ST, FC Optional
   Loss Budget* - 850/1300/1550nm
   Multimode @ 62.5/125m..............15dB
   Single Mode @ 9/125m...............15dB
Electrical
   
Phone Connector.............RJ11 Female
   RS-232............................ DB9 Female
   Baud Rate.........9.6k, 19.2k, 32k, 38.4k
   .............................48k, 56k, 57.6k, 64k

    * Contact factory for higher requirements

Visual Indicators
  
Tx and Rx volume, Local off-hook, 
   Remote off-hook, FXO, FXS, Ring, 
   Optic Rx, Electric  Rx, VccA, VccB,
   PWR A, PWR B
Alarm
   
Dry Contact ...................Normal OPEN
Power
   Standard....................12VDC @ 500mA
   Optional..................24VDC, -48VDC, or
   ................115/230VAC with power cube
Temperature
   Operating..........................-10 to 50C
   Storage.............................-40 to 90C
   Humidity...............95% non-condensing
Physical
   Height.............................(3.53 cm) 1.4"
   Width............................(18.10 cm) 7.1"
   Depth............................(24.80 cm) 9.8"
   
Weight.......................(835 gm) 1.85 lbs.

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