TC1900
Async RS-232 Telephone Extender
Features
The TC1900 "Quick-Talk" Phone Extender extends voice over Async RS-232 into a voice network by plugging in an analog telephone. It’s compatible with most PBXs and Key Systems, and provides 2-wire FXS on the telephone side with ring down capability and FXO on the PBX side.
- Extend Telephone Link with Async RS-232
 - 19.2k, 38.4k, 48k Async Baud Rates
 - 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 Power Supply, Optional 24VDC, -48VDC, 125VDC or 115/230VAC with Power Adapter
 - Built-In Power Redundancy
 - Rackmount or Standalone
 - Tested and Compatible with:
 
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.
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” telephone service via existing RS-232 links on satellite or microwave networks.
                    Specifications
- Frequency300Hz to 3.4Khz
 
- Phone ConnectorRJ11 Female
 - Ring Voltage70Vrms at 20Hz (Depending on the ringing load)
 - FXO Input Impedance600 Ω
 - FXS Output Impedance600 Ω
 - RS-232 ConnectorRJ11 Female
 - Baud Rate19.2k, 38.4k, 48k
 - Future Release32k, 56k, 57.6k, 64k
 
- Tx and Rx volume, Local off-hook, Remote off-hook,Yes
 - FXO, FXS, Ring, Optic Rx, Electric Rx, VccA, VccB, PWR A, PWR BYes
 
- Dry ContactNormal OPEN
 
- Standard12VDC @ 400mA
 - Optional24VDC, -48VDC, 125VDC or 115/230VAC with Power Cube
 
- Operating-10°C to 50°C
 - Hi-Temp (optional)-20°C to 70°C
 - Extreme (optional)-40°C to 80°C
 - Storage-40°C to 90°C
 - Humidity95% non-condensing
 
- Height(3.53 cm) 1.4"
 - Width(18.14 cm) 7.2"
 - Depth(24.89 cm) 9.8"
 - Weight(907 gm) 2.0 lbs