DFT120 Bogen Digital Feedback Terminator

The Bogen DFT120 Digital Feedback Terminator provides high quality recording and playback of audio pages. The DFT120 breaks the acoustical feedback loop created by the telephone handset and paging speaker. The page is first recorded and then played back as soon as the source handset has been put on-hook.
High capacity paging is accomplished by the DFT120ʼs record during playback and page stacking capabilities. User selectable loop start trunk or 4 wire dry loop input interface and selectable 8-ohm or 600-ohm output impedances allow the DFT120 to directly connect to a wide range of customer premise equipment.

Specifications

• Audio Memory Capacity - 240 Seconds
• Maximum Message Length - 60 Seconds
• Message Stacking Capacity - 16 Messages
• Audio Sampling - 12 Bit word at 16 kHz
• Frequency Response - 100 Hz to 6.8 kHz +/-3 dB
• Distortion - < 1.0% (THD max., typical)
• Signal-to-Noise Ratio - 60 dB
• Dynamic Range - 60 dB
• Page Input/Priority Audio Input
  • 600-ohms, transformer-isolated, with -20dBm to +4 dBm (nominal 0 dBm) input level
  • Type - Loop start trunk or 4-wire dry loop, switch selectable
  • Connector - RJ-11 (6 position)
• Audio Output
  • Type - Transformer isolated, unbalanced
  • Impedance/Power - 8 ohms / 0.125W or 600 ohms / +4 dBm, switch selectable
  • Connector - RJ-11 (6 position)
• Controls & Switches
  • Volume
  • Input type (loop start / dry loop)
  • Output impedance (8- or 600-ohm)
  • Setup DIP switches (bank of 12)
• External Control Inputs - Record, Play, Stop
• Status Outputs - Record, Play, In Use
• Status Contact Rating - 24V DC, 1A
• LED Status Indicators - Power, Play, Record, In Use
• Protective Fusing - 0.6A, Internal automatic reset
• Power Consumption - 12V DC / 1Amp
• Dimensions - 10" W x 6.75" H x 1.5" D
• Product Weight - 3 lb.

DFT120 Specifications PDF

DFT120 Installation Manual